SHIMANO 105 ST-5700 105 Double Road STI Lever 10-Speed, Black, Left Hand, ST5700L

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and 11-speed SRAM road components are inter-compatible – meaning you could run a 10-speed SRAM Red rear derailleur with a pair of SRAM 22 shifters 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, 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. However, experience with Ultegra makes us worried that the shift will require more force as the cables age because of the extra bends from the under-tape routing. Nevertheless, these levers are the best value bit of road kit Shimano has ever made. Now that we’ve gone through the tortuous process of working out exactly what will work with your drivetrain, you have the fun of deciding which price point to go for. Shimano’s latest XT Di2 M8150 12-speed rear derailleurs are designed for electric mountain bikes and are not compatible with non-assisted bikes 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.At the controls is an ergonomically designed shifter, which for the latest edition has received similar treatment to the pricier Ultegra R8000 series. Overall, the shifters have been reduced in size, and re-shaped to make them easier to grip in slippery conditions. High Quality, High Value But now things get more complicated (or simple, depending on which way you look at it) with slight tweaks to all of Campagnolo’s groupsets resulting in reduced inter-compatibility between groupsets. Regular rear derailleurs rely solely on the tension provided by the main pivot to keep the chain in place. There are also differences in the pull ratios used between different groupsets: the Ergopower shifters used by mechanical Super Record, Record and Chorus 11-speed are not compatible with Potenza, which itself is incompatible with both Ergopower and Centaur Power-Shift systems. 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

Campagnolo’s Super Record EPS electronic groupset is on version four now and has gone 12-speed. Again, it’s a system unto itself, with its own electronics to communicate between the shifters and the rear derailleur. We all liked the new shaped hoods and the internal cable routing makes for a cleaner looking front end, at the expense of some under tape bulges and a slight increase in friction – despite the new PTFE lined cables. The front derailleur has been enhanced, too. Gone is the in-cable barrel adjuster, replaced instead with an integrated cable tension port. This is something introduced to Dura-Ace and Ultegra level models, which results in lighter shifting between the front chain rings. The current 12-speed generation of Shimano electronic groupsets have inter-compatible wiring and electronics and use the newer SD300 wire variant. 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 MediaAll 11-speed Shimano Di2 road, gravel and mountain bike Di2 components are inter-compatible – you could, for example, use an XT M8050 rear derailleur with a pair of Ultegra R8070 shifters 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.