SHIMANO RD-M592 Deore Shadow rear derailleur, black

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speed SRAM components are inter-compatible, regardless of whether they are road or mountain bike parts – for example, you could run road shifters with a mountain bike rear derailleur Current 9-speed Shimano mountain bike components are compatible with older 9-speed road and mountain bike components, excluding the aforementioned exception The main difference you’ll find between road bike and MBT derailleur is the length of the rear derailleur component. Mountain bikes have lower and wider spaced gears usually and this means the rear derailleur needs to be able to handle a bigger span in change length than standard road bike derailleur Bike Derailleurs at Decathlon speed road components (except and 10-speed GRX gravel and Tiagra 4700 – notes below) are inter-compatible. You could, for example, use an old Ultegra 6700 derailleur with old 105 5700 shifters

However, things get much easier with its latest 12-speed road groupsets. You can mix and match components between Chorus, Record and Super-Record.Clutch-equipped rear derailleurs were once the sole preserve of mountain bike offerings, but are now seen on both gravel and road groupsets from Shimano and SRAM. Matthew Loveridge / Immediate Media Shimano’s latest XT Di2 M8150 12-speed rear derailleurs are designed for electric mountain bikes and are not compatible with non-assisted bikes All 11-speed Shimano road components are inter-compatible – you could use a Dura-Ace R9100 derailleur with a pair of 105 R7000 shifters. This is also true of the brand’s 11-speed GRX components For clarity, 10-, 11- and 12-speed Shimano road/gravel and mountain bike components are not inter-compatible with each other. This is because they use different cable pull ratios However, SRAM’s Force AXS Wide groupset means you may not have to create your own mullet builds. Bridging the gap between road-going AXS groupsets and mullet builds, the groupset offers a lower bottom gear for road and a good range for gravel riding with cassettes up to 36 teeth, but does this by altering the drivetrain alignment.

The only exception for 9-speed groupsets is pre-1997 Dura-Ace gearing, which won’t play nicely with anything because it uses a totally different cable pull ratio SRAM’s latest 12-speed eTap AXS road and MTB groupsets can be used together, setting up the option for ‘mullet builds’, which pair up road shifters with an Eagle AXS rear derailleur and a 10-50 cassette, for an ultra-wide gravel bike build. SRAM’s current 12-speed eTap AXS rear derailleurs are all compatible across road, gravel and mountain biking. For example, you can run an Eagle rear derailleur on a road or gravel bike. If you’re doing this, you’ll need to run a compatible chain (you cannot run a road FlatTop chain with an Eagle rear derailleur), chainring and cassetteThe good news is there’s some reverse compatibility between version three 11-speed EPS components and older generations. What cage length derailleur should I buy?

a) If we have sent you the incorrect bicycle, we will cover the cost of collection and delivery of the correct model. A clutch derailleur essentially increases the resistance this pivot provides – either through a clutch or more complex electro-hydraulic systems, as seen on SRAM AXS – resisting fore and aft movement of the derailleur cage, and making for a far quieter and more reliable drivetrain.Deore XT rear derailleur delivers reliable and precise shifting with a stiff and lightweight open design Campagnolo’s Super Record EPS electronic groupset is now onto its fourth generation. Matthew Loveridge / Immediate Media While the derailleurs will work, chainlines differ between GRX, Shimano’s road groupsets and its mountain bike groupsets.

Campagnolo has introduced many changes to its groupsets, resulting in reduced compatibility between generations. So boxed letters (indicating the ranges) will aid you in identifying if your parts are compatible. Campagnolo has introduced many changes to its groupsets, resulting in reduced compatibility between generations. So boxed letters (indicating the ranges) will aid you in identifying if your parts are compatible. Campagnolo Chain reaction Cycles and CRC are trading names of Wiggle Ltd (In Administration) registered in the United Kingdom at 1000 Lakeside, Suite 310, Third Floor N E Wing, Portsmouth, Hampshire, PO6 3EN,Now we’ve determined the speed, brand and compatibility of your derailleur, you must work out the cage length that your drivetrain requires: long, short or medium. Apart from first-generation Dura-Ace Di2, which uses a different wiring harness, the second (11-speed) generations are inter-compatible, across road, gravel and mountain bike groupsets as they all use the SD50 wires and share the same electronics.