You can do that. Want the system to take care of shifting the front mech for you so you only have to tap one button at a time? You can have that too, or you can have the system compensate for front mech shifts by taking you to a rear sprocket that minimises the size of the gear jump. The app also monitors battery level and in coming updates will be able to detect chain wear and tell you how many shifts the system has executed. The chainsets are available with an optional power meter.
In most versions it's — rather controversially — built into the chainrings, so when the big ring wears out, you'll have to replace the power meter too.
SRAM says this makes for a lighter, stiffer crank-based power meter. As you might expect, it's not cheap. It took a while for retailers to start offering complete SRAM groupsets, and it's still more common to be offered the derailleurs, brake levers and brakes as a set, then add your choice of chainset, sprockets and so on.
You'll also need wheels, a new rear wheel with an XDr freehub body or to replace the freehub body on your existing wheels with an XDr body. When SRAM's first Red eTap system was announced it seemed obvious there'd eventually be a next-level-down wireless electronic shifting system alongside the Force mechanical groupset.
The surprising thing about Force eTap is that it took four years and a whole eTap development cycle to happen. Red eTap was launched in August , and it would have been relatively straightforward for SRAM to make a Force version by just substituting cheaper, heavier materials in key areas of the gear mechanisms and shifters.
Instead it seems SRAM beavered away addressing criticisms of the original eTap like its lack of customisation, migrating speed technology from mountain bikes, coming up with a new approach to road bike gearing and developing a Force version of eTap in parallel with Red eTap AXS.
However, when we say 'cheaper', 'a bit less expensive' would be more accurate. As with Red eTap AXS you're going to need a whole groupset if you want to switch from whatever you're riding now, plus a new rear wheel with the XDr driver to accommodate SRAM's tooth stop sprocket. There's no upgrade path from first-generation Red eTap.
However, that would cost more than just buying a Red power meter crankset. You can read all about the Force Wide groupset in our news story about its launch and Stu Kerton's review of the new groupset. We're pretty sure that's the widest gear range anyone has ever offered in an off-the-peg double-chainset groupset. However, you don't have to go the whole hog.
There's still a bit of Red eTap v1. You're unlikely to find complete groupsets in shops, but a well-cared-for second hand Red groupset at a good price is still worth buying. We're giving this its own section because it deserves to be more widely known. Some time in mid SRAM very quietly introduced an upgraded version of the speed Red eTap rear mech, incorporating many of the technological improvements found on the Red AXS derailleur. The new eTap rear derailleur was developed from our AXS model, so it looks different from original eTap.
It is labeled as speed and will not work with AXS speed. That sounds like good news if you have speed Red eTap and are a bit miffed about the lack of upgrade route to speed. At least you could get AXS's faster shifting and chain-slap-reducing damping. However, we can't tell you how well the Red eTap A2 rear mech works because SRAM's not interested in promoting it at all, telling us "This is not a product that we are pushing as general sales.
What we do know is that it's compatible with speed cassettes up to and experience with v1 Red eTap suggests it could be pushed to if set up carefully so it replaces both the original Red eTap rear mech and the WiFli version. It's compatible with standard eTap batteries — the only part of the system that was carried forward to AXS — and incorporates the motor and damping technology from AXS, plus ceramic-bearing pulleys.
If you've got a disc-braked road bike, want easily-set-up electronic shifting and don't mind being a sprocket behind the bleeding edge, then this combination of SRAM's original speed eTap wireless shifting and hydraulic disc brakes has your name on it. The eTap HRD groupset uses the same derailleurs as the regular eTap see below but the brake levers are different. The new hood is taller than regular eTap but only but a small amount.
Both the reach point and bite point can be easily adjusted so you can customise the feeling of the brake levers. New one-piece flat mount brake calipers save weight and they manage heat better than the previous design.
And the rotors now get rounded edges. You can read Mat's first ride impressions right here. The original Red eTap wireless speed shifting system has all but vanished from the shops — we've not been able to find a retailer who is still showing it as in stock, but you'll probably find some second-hand sets on eBay. The only wires visible are those running from the Blips to the main shifter body, however, they're covered completely by the bar tape. You upshift at the rear move to a smaller sprocket by pushing a paddle behind the right brake lever.
You downshift at the rear by pushing a paddle behind the left brake lever. If you want to perform multiple shifts you can hold each paddle in its shift position. You move the front mech by pushing both paddles at the same time. Here are some reasons why you might want to choose electronic over mechanical. The maximum sprocket size the standard rear derailleur can handle is 28 tooth. We found it super-easy to use. You get the hang of the new way of shifting in no time, the lever feel is very positive, and it works well, even when changing from the small chainring to the big one under load.
Buy if: you want simple and accurate electronic shifting on a professional-level groupset. The brand changed Red from speed to speed in , although it actually calls Red a True 22 groupset in that you can run the chain in the large chainring and the largest sprocket, and in the small chainring and the smallest sprocket, so you get 22 different combinations. A short lever push moves the chain in one direction, a longer push moves it the opposite way.
This means that with a long cage rear derailleur you can use sprockets up to tooth for some really small gears to get you up tough hills. The more expensive the groupset, the lighter and more durable it will be. Check if there are actually also parts from a different SRAM group on the bike. On these sorts of bikes mainly GX groupset parts are used, but sometimes the manufacturer chooses to mix them with parts from another groupset.
Parts that wear more quickly generally come from the lower-end group sets. Manufacturers do this to keep the purchase price down. You can, of course, choose to upgrade these parts! Upgrade kits are an easy way to upgrade your MTB. Usually they consist of 1 or 2 shifters, derailleurs, a chain and a cassette. This groupset is available as a 12 speed Eagle and usually appears on entry-level model MTBs.
So for very comparatively little money you can enjoy a 12 speed groupset. The disadvantage of this groupset is its weight. The HG cassette is compatible with an HG speed body. Previously NX had an 11 speed groupset, but this is no longer used on new mountain bikes.
In the past there were also 1 x 11 and 2 x 11 GX groupsets, so you can still buy loose parts for these, but the 11 speed is no longer available as a complete groupset.
The GX Eagle so 12 by you can get as a groupset, individual parts, or as an upgrade kit. The shifting response under load is somewhat slower than it is with the higher-end groupsets, but the GX Eagle offers very good value for money. The materials used in this groupset are heavier and less durable than those used in the XX1 groupset. Adjustment of your shifting system is done using the AXS app. To shift using eTap, you move into a smaller cog at the rear by pressing the paddle behind the right brake lever.
You move into a larger cog by pressing the paddle behind the left lever. The front mech is operated by pressing both levers together.
As denoted by the '22', SRAM Red is 11 speed and the American based brand promises that the symptoms of cross-chaining are minimal so you really can use all SRAM Red groupsets are also on offer with a mid-cage 'WiFli' rear deraillieur, which makes the use of a tooth cassette possible without it your max is 28 tooth , and SRAM Red chainsets can also come available with a Quarq power meter built in.
Like SRAM Red, Force is speed, and when it grew into its extra gears it also inherited design features from its more costly sibling. Whilst a little heavier than Red, Force is usually considered on par with Shimano Ultegra.
The 1x version can accomodate cassettes up to , and comes with chainrings from 38 to 54 tooth. A Clutch 2 derailleur helps guard against chain slap - a technology which was previously considered an off-road domain but has become more popular on the road and gravel of late. The major difference between this and other options above is that the cranks, levers and rear mechs move from being constructed from carbon fibre, to aluminium.
Also, when it comes to the hydraulic levers, they've not received the updates seen elsewhere in the range, so are a bit larger compared to the downsized hoods you'll see at the likes of SRAM Red HRD. The 1x groupset comes with an X-Horizon rear derailleur, which includes a clutch mechanism to reduce chainslap.
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