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Ummmm no, they just downsized things. Sponsoring teams IS marketing. The levers offer two ports per side for SRAMs accessory blips, which allow you to change gear anywhere you like on the handlebars. In his time as a cycling journalist, Warren has written for Mountain Biking UK, What Mountain Bike, Urban Cyclist, Procycling, Cyclingnews, Total Bike, Total Mountain Bike and T3. SRAM unveils its new Force eTap AXS component group, in a dual chainring, 23-speed option. In the world of bike tech game-changing is a hyperbolic phrase that gets bandied left, right and centre. To obtain a copy of the manufacturer's or supplier . The Rival rear derailleur, for example, has steel bearings, steel hardware, and an aluminum pulley cage. Shimano R9200 brakes use Servo Wave tech, again ported from its MTB range, that gives you progressive brake action that is more aggressive at the end of the stroke and lighter when you're just feathering the brakes. Ever bigger cassettes have been in vogue for years now, not just among committed amateurs like me and you but the pro peloton too. Within the AXS app you can also customise what each lever does, and because the SRAM Eagle AXS mountain bike groupset shares the same protocol you can mix and match if you like. Hes been riding gravel since before gravel bikes existed too, riding a cyclocross bike through the Chilterns and along the South Downs. Rival is only available with hydraulic disc brakes. This slims down the derailleur but also keeps it pulled up and out of harm's way when riding. Cycling Expert; . They didnt have the left arm available at the launch (uninstalled, anyway), but Ill pull one off the test bike and weigh, look for an update to the post soon. Both Red and Dura-Ace give you the option to adjust brake lever rest position and bite point to suit your hands' reach. SRAM calls this sequential shifting, Shimano synchronised shifting. The group offers 33/46 and 35/48 chainrings but not the 37/50 option. The material its used is both harder and stronger, and finished in what its calling Hard Chrome. Shimano meanwhile has a single central battery that's usually mounted in the bike's seat tube and powers both derailleurs via wires. Its already an option on all of Zipps wheels and as most wheel brands already offer an XD option we cant see much of an issue with compatibility. Well, I only rode the one bike with the one combo, but yes, Id say so. How is the Trek Checkpoint long term testing going? > and have yet to run into compatibility problems. Orbit is a fluid damper contained within the pivot at the top jockey wheel axle. Note:SRAM HRD shifter weights include the cables, brake hose and caliper. Rival AXS shifters have a new, revised shape, designed to fit hands of all sizes and provide powerful braking from both the hoods and drops. I love my shimano road group, and when I have sram on one mtb and shimano on the other. That doesnt mean they cant be easily anticipated or quickly deduced. We've got full reviews of our experience of riding both SRAM Red eTap AXS and Shimano Dura-Ace R9200, but if you're not sure which is for you and want a more direct comparison read on. 36T: 36T=5mm / 33T=5mm / 30T=10mm / 28T=12mm (chain in largest sprocket) Cycling activity Bidex Code 202110 Category Road Main . You can add me to the 12s mechanical waiting list. The problem in reducing size is that you also reduce strength, so SRAM both flattened the top and made it out of a new material that is both harder and longer wearing than its old model. |, Buttery smooth shifts, quiet operation, brilliant gear range, The new one-piece direct mount double chainrings for the RED crankset are a serious piece of machining, SRAMs new 12-speed chain looks radically different with its flat-topped profile. Youre welcome. The roads we used were mostly dirt, looping in and out of Saguaro National Parks western district (check out our Where To Ride guide for more on this sweet winter training area!). Compare them to DA or Ult di2 and Sram should be embarrassed. Shimano Dura-Ace cassettes now offer an 11-30t and an 11-34t tooth option, with the former offering seven single tooth increments from 11 to 17 tooth sprockets, matching SRAM. The move to 12-speed could have been just another trinket to get people to part with their hard-earned cash, but what SRAM has achieved with eTap and its fresh approach to modern bike drivetrains could well be the shape of things to come. Adding an extra sprocket reduces space, which means the width of the chain must be reduced. With its 12-speed groupsets, rather than develop new road-specific parts Shimano has used some components from its MTB range, one of which is the chain. So, I do think SRAM is onto something here, and I wouldnt be at all surprised to see other chainring manufacturers following suit. Shop now RED ETAP AXS HRD SHIFT-BRAKE SYSTEM It can absorb water from the atmosphere, but even with 4% water still boils at 155C. Power meter upgrade (spindle only) - $249, Front derailleur (battery not included) - $175, Rear derailleur (battery not included) - $370. So what compromises are made to bring down the cost? Heres how it works. According to srams website, when that happens, they will discount it by 50% but its still seems like added complexity when a spider based system works fine. Secondly, it can change gears up or down a few sprockets on the rear to compensate for a shift at the front so that you get a similar ratio after the front shift rather than either spinning or grinding, as is typical with mechanical shift systems. You can assign the groupset to work in one of two semi-automated ways. Which I have always noted was lacking with etap as did another commenter. Gear ratios arent a new thing and 10t cogs have been around for a while.The XD driver was a great innovation. Would you like to receive offers, updates and events from BikeRadar and its publisher Our Media Ltd (an Immediate Group Company)? Enter the roll-up tool bag. Is there even a pro world tour team riding Sram anymore? If there were something I didnt like about the group, Id say so, but it really is that good based on first impressions. All these sites are paid to promote therefore we cant expect them to be BRUTALLY honest because that means a blacklist from the sponsors in future. Now theyre just bringing the model to road bikes. Save 30% + G-Form Pro X3 Knee Pads when you subscribe to MBUK magazine. Heres a full list of everything you can buy as of February 2019, SRAM Eagle AXS Mountain Bike Group Tech Overview, Unboxed! Rival takes advantage of X-Range gearing, which uses tighter jumps between the chainrings and 12-speed cassettes to give riders more gear range and smoother gear progression. SRAM seems to be kicking Shimanos butt across the board- mountain and now road. Also, maybe Im in the minority here, but Id LOVE to know when I might be able to get my hands on a Force 24 mechanical group. Red cassettes are machined out of a single block of steel to minimize weight. Purchased as a standalone upgrade, the power meter spindle is $100 less than a Quarq power meter spider (without chainrings) and $470 less than the integrated power meter and one-piece chainrings used on Red AXS. The 48/35 and an 11-28 is the equivalent of a 52/36 with an 11-28 cassette. Heres all of our tech stories from the SRAM AXS launch event: Tyler Benedict is the Founder of Bikerumor.com. Do they work? The two most obvious material differences arefound in the brake levers and crank arms. After three years riding the original eTap in its various rim and disc brake guises Ive been very impressed. Complete Rival power meter cranksets comes in standard and Wide versions. Will that luster hold up? ya know with no cranks or hubs available. Yes, those crank arms are homely. In comparison to Shimano's traditional gearing, the 50/37 and a 10-26 cassette is the equivalent of the 53/39 with an 11-25 cassette. SRAM Red derailleurs each have their own removeable battery attached to the rear of the mechanism. The power meter spindle can also be purchased alone, to instantly upgrade any DUB road or road wide crankset. This design, XDR, is close to XD (and compatible with the use of a small spacer). Highlights. There are no wires to route through the frame, which simplifies setup. 2023 SRAM Force AXS & XPLR groups updated with lighter, better tech. That means that there's a range of Red XPLR eTap AXS components, including a rear derailleur with 44 tooth maximum sprocket capacity that works with a 12-speed XPRL cassette with 10-44t range. Basically, when you change gear at either the front or the back, the auto shift moves the other derailleur if necessary to ensure you are always shifting to the next available gear (in either direction) to keep changes as smooth as possible. When you purchase through links on our site, we may earn an affiliate commission. The smaller articulation angle between the chain links as they pass over an 11-tooth sprocket should also lead to lower friction, although SRAM claims that the 12-speed Red eTap with a 10-tooth sprocket is as efficient as its previous generation 11-speed system with an 11-tooth smallest sprocket. Enjoyed your comments Tyler. Shifting is as smooth as ever, but just the general running and operation was nearly imperceptible. The Rival cassette uses a fully pinned design, where 12 individual cogs are pinned together, increasing the weight by about 20 grams over a comparable Force cassette. It also eschews any mechanical only version of the setup, going with only their wireless eTAP shifting option. shifters, derailleurs, and calipers are ~$2500. Not that theres anything wrong with the Dura Ace stuff, but its ridiculously expensive and I dont feel the rear shifting is any better. The wide crank requires a matching wide front derailleur. SRAM launched Red eTap in 2015 and followed up in 2019 with 12-speed Red eTap AXS. Then again, might it just live up to the hype? Its set to cost 3,349 / $3,648 / 3,618 for the 2x HRD RED version we have tested over the last few months. Colour: rainbow. The only / or last one I can remember that looks decent are the original XX double MTB cranks. With AXS I expected some improvement and a wider range of gears, but I wasnt totally convinced about how essential it would be. Shimano doesnt release duds and sram does? The Rival AXS rear derailleur uses a spring clutch rather than the Orbit Fluid Damper found on the Force and Red AXS rear derailleurs. How often do people wear out the big ring and small ring at the exact same rate? Its based on Quarqs top of the range D-Zero unit and offers plenty of metrics, including left-right balance. Thanks! SRAM Rival eTap AXS brings all the benefits of the earlier (and much more expensive) releases - at a fraction of the outlay. Add contacts to an eTap battery block, pogo pins to an eTap battery cover, wire them together, and secure the battery under your bottle cage or somewhere. SRAM Rival eTap AXS vs. Force vs. Red - Weight Comparison & More, The Best Carbon Road Bikes Marked Down Now, Best-Selling Bikes of 2022: Road, Mountain, Gravel & More, Get Up To Speed: The Best Road Bikes For Beginners, Read more about the difference between 2x and 1x drivetrains. This also means that, unlike SRAM Red eTap AXS, you can swap the chainrings on a Dura-Ace power meter chainset without needing to replace the power meter. Shimano rarely releases duds while Sram constantly does. SRAMs solution comes from its innovation in mountain biking and single ring 1x drivetrain used on road and gravel bikes in recent years. This directly impacts the stiffness of the chainrings, which itself has a big bearing on how well the front mech will shift as well as other performance benefits for the racers. In Shimano's case these are wired to the levers while SRAM has both wired and wireless options. The principle behind the damper is that the faster it moves, the more the resistance builds. Gear steps: 12. He didnt seem very convinced that it was faster. I rode Force 22 for years before switching to a bike with DA 9150, and Id swap back to Force in a second. I am running SRAM force cranks and the red chainring. Fresh graphics with subtle-yet-shiny paint catch the eye, and the one-piece chainrings and slimmer brake hoods. With 48/35t chainrings, 175mm cranks, a 10-30t cassette, and hydraulic disc brake calipers, the claimed weight of a complete Rival eTap AXS group is 2,783 grams. The spindle-based unit measures left side power and doubles it to calculate total watts. Hit both together and you'll initiate a front shift. Similar bikes won't keep up with the Vitesse EVO Red eTap AXS while riding downhill or sprinting. Firstly, it can operate sequentially, where you just shift up or down. The reduction in the chains size has meant that it has more clearance than the previous model when its sitting on a sprocket i.e. The Vitesse EVO Red eTap AXS is easier to ride up hills than similar bikes. Secondly, theres compensating; this smooths out gear shifts, so when you change the front ring up or down, it compensates at the rear derailleur, moving either one or two cogs to keep your gear progression even and your cadence steady. Rival AXS derailleurs feature the same shifting precision and reliability as their Force and Red AXS siblings. Its GRX groupsets still stop at 11-speed. Clicking on the right-hand button moves the rear derailleur to larger sprockets, while a click on the left-hand button takes you to smaller sprockets. We review Rival AXS's weight, pricing, and how it compares to Force AXS and Red AXS groups. Shimano's shifting is also faster than SRAM's and significantly faster than the old 11-speed Dura-Ace. Scope of delivery: 1x SRAM RED XG-1290 rainbow 12-speed cassette. Weight: 135g; Additional contact mail (leave blank)* Red uses carbon brake levers and hollow carbon crank arms. Gear ratio range: 280 - 330%. SRAM Force opts for a two piece caliper design instead of the monobloc calipers found on RED, which results in weights of 166g and 180g for the front and rear brake respectively with full length hoses, 160mm rotor adapters with hardware, and a pad spacer. I guess the big question is this: would I change my existing eTap RED 22-speed for this new model? Compatible with all other AXS components. Gears 2x12SP. For one, you could put ETAP 11 on basically any frame and an 11 speed wheel set. They use a CR1632 coin cell each with a similar battery life of around two years. Richmond, Calif.s longtime frame-building component manufacturer, Paragon Machine Works, releases a limited 40th-anniversary multitool! You can also pair Shimano's Di2 mountain bike derailleur and levers with Shimano's road equivalents. There's an indicator light on the rear mech that indicates charge level and, like SRAM, you can also check battery status in the Shimano E-Tube app. eTap is the next generation, electronic shifting system from SRAM, replacing their famous mechanical shifting, the Double Tap. Rival and Force chains also use solid pins while Red uses lighter, hollow pins. New 10-36 cassette and crank with 30/46 rings make Force eTap AXS more gravel and fondo friendly. The difference to Red eTap AXS is 541 grams. Firstly, theres sequential; when you activate the next available gear it will automatically actuate the front derailleur to keep the ratio change even between shifts, and therefore keep your cadence steady. In the wake of a tragic accident thats garnered national attention, a cycling community looks to pick up the pieces. https://www.sram.com/stories/19-road-team-roster. Finally, the 46/33 with a 10-33 is the same as a 50/34 with an 11-34 cassette. . Dura-Ace levers have grown from the 11-speed version. Weight 169g. The weight differences come down to materials and construction. What is the shift speed like? Rival AXS rear derailleurs use a more traditional mechanical clutch. With the exception of a brake warranty issue (albeit a pretty big one), this is hardly the truth. It's a beauty! Even a 52/36 around my local roads seems to frequently leave me cross-chained. This narrower grip is possible because Rival eTap AXS doesnt have contact point adjustment for the brakes, and also does not allow for blips (auxiliary remote shift buttons). Since top end mountain bikes have been 12-speed for several years, the XTR chain has been proven to be robust. Front shifts are more positive and completely accurate, even when shifting over broken surfaces as the rear mechs damper increases the chain tension and prevents any chatter and bounce. SRAM Red chainrings come in 46/33t, 48/35t and 50/37t options as standard, so you can have a lowest ratio below 1:1 if you use a 10-36 cassette with a 46/33t or 48/35t chainset, without losing top end ratios. Turn them on in the app, and the derailleurs will dance together to keep you at either an optimal cadence* or optimize gear steps. With the latest R9200 version of Dura-Ace released in 2021 there are more similarities between the two road bike groupsets than there were, but plenty of differences still. While it was some way behind its major competitors Shimano and Campagnolo, whod had electronic systems for years, it jumped ahead of both by becoming the first to dispense with cables and operate wirelessly. > SRAM unleashed a whole new concept of gearing and gear ratios. I could never willingly pay money for shimanos mehcanical mtb shifting over SRAMs. Package Quantity: 1. Continue with Recommended Cookies, At the official SRAM AXS launch, there was a LOT to learn. Shimano is rolling out special editions for gravel and road. The fact that the rings are machined together is a huge issue to me. Hood included; . The integrated PM is so wack in my opinion. Today SRAM announces their latest RED groupset lineup, SRAM RED eTAP AXS for road and off-road. Subscribe from just 13.50 and get a Lezyne Pocket Drive Pump, worth 29! Learn how your comment data is processed. The shift speed feels very close to existing eTap, but the real plus is just how quietly it carries out those shifts. Newly formed Denver Disruptors NCL team to make its debut at Tucson Bicycle Classic and tackle a full season of NCL and domestic racing, By Anne-Marije Rook Still seems a little rich for my blood especially when ultegra di2 shift groups can be found for 800 bucks new and the replacement parts are cheap for when you crash. Meaning, you no longer have to make front shifts, you simply press one side to go easier and the other side to go harder, then it shifts front and/or rear for you to run through the gears in the most appropriate sequence. The Flattop design allows for a narrower chain without compromising strength or durability. Note: Mechanical weights do not include cabling. SRAM's Red-level rim brakes are single pivot only, whereas Shimano also has a direct mount Dura-Ace option. All rights reserved. Compatibility freewheel: SRAM-XDR freewheel. SRAMs mechanical groupsets have always been an outstanding value (same functional parts across all levels), so why not save the cash for other fun things, right? Warranty: Multiple Warranties and/or Time Frames Apply. You can also check battery status in the SRAM AXS phone app (see below). The difference between Shimano and Sram is that SRAM accepts compromise in order to innovate. The higher boiling point should make a DOT fluid-based system more stable, says SRAM, leading to longer periods between brake system bleeds. A Force eTap AXS group with a similar set-up weighs 2,600 grams, a difference of 183 grams. Sign up to receive Bikerumor content direct to your inbox. Expect a full test of this new Orca soon, but Ill just say its a bike thats every bit as impressive as the gearing its running. Bike compatibility: Universal. The Force eTap AXS group is slated for April 2019, and while we dont have tech details on yet, its a good bet it, too, will use the revised gearing. Cycling Weekly is part of Future plc, an international media group and leading digital publisher. 2023 Merida ONE-SIXTY 6000 Gives a Reassuring, Responsive Ride | Review, Lezyne Digital Travel Floor Drive Pump Brings Big Features to Miniature Design, Suplest Edge+ 2.0 Cancellara Edition Road Shoe Brings Brand to North America, Granite Designs Quiver Tool Roll Stores, Stashes, and Straps Anywhere, GoFundMe Supports Two Cyclists Killed, 17 Injured in AZ Car Accident, Podcast #077 First Endurance dives deep on sports nutrition, Paragon Machine Works Celebrates 40 Years With Limited-Edition Multitool & Bottle Opener, Shimano Special Editions: Tropical Leaves With Lazer & Champagne for Spring Classics, Road 2x (48/35 combo) 419g with powermeter, Road 1x (48t X-Sync) 395g with powermeter, Shifters 233g/234g with coin cell batteries installed, Rear brake caliper 158g (with spacer, so subtract a couple grams). Rival AXS provides a more affordable alternative to the Force eTap AXS group and the top-of-the-line Red eTap AXS group. The intuitive simplicity of SRAM RED eTap with an added performance of hydraulic road disc brakes (HRD). Upon reflection, I wasnt constantly chasing that sweet spot thats so elusive on something like a 50/34 combo. How is that possible on a decade old groupset? The optional power meter by Quarq is solid and the numbers its providing match those I get from the Quarq meter I run on my own bike. Based in North Carolina, Tyler loves finding new travel adventures to share with his family and is always on the lookout for the next shiny new part to make his bikes faster and lighter. The two biggest differences from Di2 are that Red eTap shifting is wireless, and the AXS incarnations has 12 sprockets on the rear hub, with a significantly different approach to gearing centered on its 10-tooth smallest sprocket. Their products are sexy and light but not on par with their price in my opinion. That may be a pro or a con depending on how you look at it. document.getElementById( "ak_js" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. The frame is made out of carbon and the condition is Brand New. Note: SRAM eTap component weights includes batteries because batteries all weigh the same. FYI Heres a full list of everything you can buy as of February 2019, and theres plenty more coming. doesnt actually have a link connected to it with the list of bikes. When you shift the front ring in either direction the rear mech puts you in the ideal gear progression by moving either one or two sprockets at the back. Plus the cost of consumable parts like the chainrings? The harsher the bump, the more resistance it applies to keep the chain under control. Not so much. For most riders, left-only power meters accurate enough for training and tracking their progress. Short for 10-26 up to 10-33T / Medium for 10-28 up to 10-36T Weight without battery 36T Version Rear derailleur max. Most of the downsides with AXS clearly arent going to be present with a brand new drivetrain. The problem with this, however, is that the bigger range of gears in an 11-speed cassette mean bigger jumps for the chain, which puts the system under stress, with less predictable chain jumps. Perhaps because they coudnt say anything positive about it Thanks again. While the electronics and all that have been improved to be faster, my experience was that the shifting itself felt the same as prior eTap. Launched in 2015, RED eTap was SRAMs first foray into electronic groupsets. Specifically, the battery. It is compatible with 1x and 2x eTap AXS drivetrains. Shift speed, to me, is a critical determinant in any drivetrain, and Red failed in my view in that regard. SRAM's hoods are quite large. Impossible_Beach_552 5 mo. In contrast, Shimano has stuck to cassettes that start with an 11-tooth smallest sprocket, as it claims that this is less prone to wear as a greater number of teeth are in contact with the chain. Prior to that, Tyler launched and built multiple sports nutrition brands and consumer goods companies, mostly as an excuse to travel to killer riding locations throughout North America. Electronic drivetrains are the future of cycling, and for the last two years, SRAMs wireless Red eTap AXS and Force eTap AXS groups have been at the top of the food chain. Not sure where youre getting your info. Specifications : Feature 1 Wide: tire clearance up to 700x45c and 27.5 x 2.1". The levers havent really changed in shape, but the finish looks impressive with carbon levers finished with chrome graphics and a new softer and textured grip that feels good and offers a solid connection even in heavy rain wearing winter gloves. A whole new concept? The rear mech will work with either a 1x or 2x system and to get around the need for a clutch on a 1x system, used to retain chain tension on rough terrain, SRAMs come up with a clever alternative, called Orbit. Shimano takes their sweet ass time but releases a finished product. Theres also an all-new motor with more power and faster signal transfer, to go along with the groupsets overhauled chipset thats running things. SRAM Red eTap AXS and Shimano Dura-Ace are both now 12-speed and electronic only and both have wireless comms between the shifters and the derailleurs. These are then pinned together to create the 12-speed block. At first glance, the "new" SRAM Force AXS groupset looks shiny and completely new. 121 people watching This 2022 BASIC Bikes Carbon Gravel Bike mit Rival AXS, Carbon Laufradsatz, Titanschrauben, leicht und schnell - Other SRAM is a frame size 52. Thats something you could have noted. Rival cassettes feature a different construction. To reduce costs, there is a slight weight penalty. To work out the range of a cassette divide the largest sprocket by the smallest and multiply by 100, and looking at the range of AXS the ranges are broader than traditional gearing. Once you dial it in, I can see it being a cool thing for beginners or triathletes who dont want to have to think about doing too many things while riding. This consistency means they only need one rear derailleur cage length, and chainring pairs are all machined as a single piece, so theyre easy to swap in and out thanks to their direct-mount design. Small gains in aerodynamics here or weight loss from a bikes chassis there are often breathlessly described as game-changing, when in fact theyre merely reasonable, expected gains brought about through refinement by clever sorts. It's worth noting though that Shimano's rear mechs also come packed full of tech, including the brand's Shadow design which is borrowed from its mountain bike groupsets. The Dura-Ace R9200 chainset carries forward the looks of its 11-speed predecessor. A rear derailleur with an uprated spring or friction bushing acting on the jockey wheel cage. The SRAM RED eTap AXS rear derailleur is AXS enabled for easy personalization and designed for both 1x and 2x systems. A geartrain without friction? You've been subscribed to our newsletter. Sign in to manage your newsletter preferences. Both are programmable with built-in Bluetooth, both are focused on disc brakes but also offer a rim brake option and both let you add an in-series power meter. Groups are 239-352g heavier. Cassettes are 11-28 (or closest) We've removed bottom bracket weight as these are frame dependant. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. It's set to cost. A Force eTap AXS group with a similar set-up weighs 2,600 grams, a difference of 183 grams. Bikerumor Copyright 2013 2023. The shift buttons get a bit of texture and hood covers are softer and patterned for better grip. SRAM RED eTap AXS 12-speed and wireless, it's the ultimate in modern shifting Specifications Shifting: Wireless Braking: Disc, dual pivot rim Speeds: 1x12, 2x12 Weight: 2101g 2x rim /. England and Wales company registration number 2008885. Sprockets make up the cassette on your rear wheel, which is attached to the freehub and held in place by a lockring. Red eTap AXS: MSRP $1,453-2,690. So I wanted to take a minute to process all that before writing my first ride impressions of the new groups. But sometimes people dont have unlimited budgets. Clockwise from left, XX1 weighs 373 grams, X01 weighs 390 grams, and GX weighs 454 grams (battery cover not included). I dont mind it until Im at race wattage and then its a first world problem because the shifting is noticeably slower than di2 of any gen. Ive got 7970 still and it shifts faster than AXS. The lack of chain slap was nice, but as a complete system, the overall quietness of it surprised me. Its not just the wider range where AXS seems to have an advantage on the competition, but in smoother progression between gears, with more single tooth jumps across all three cassette blocks (Fig 2). To pair with the Rival AXS 12-speed chainrings and cassettes, there is a matching Rival AXS Flattop chain. SRAM's eTap AXS components, in contrast, are wireless. Year 2022 These are then mounted onto the crank arm directly using a splined interface. The power meter has a long, 400+ hour battery life and uses a replaceable lithium AAA battery. I really appreciate the push pull on the trigger for shimano. You can also buy a power meter upgrade kit (but not a complete groupset) with 52/39t, 54/41t and 56/43t rings.