Note that these manuals are still relevant even if you’re not using a Shimano chain - they’re derailleur specific, not tied to any chain brand or type. Perhaps the most visually arresting part of the new groupset, the ST-R9270 hydraulic lever bodies are slightly larger than those of R9100, and the lever bodies curve inwards slightly. R9270 is semi-wireless. The levers are wireless and powered by small coin cells, while the two derailleurs are wired directly into the central battery using new, thinner SD-300 wires. Interestingly, Shimano have done the same thing that many riders criticised SRAM for including on their first-generation Force group – eliminated the trim position for the outer chainring. However, we think it unlikely anyone will complain this time around. Though we were always able to get first-gen Force to work as intended, front derailleur setup is more straightforward on 7900 and there is no cage rub with any rear cog when in the big ring. Bravo.

Part of Smith's Ultrafast formula includes running Dura-Ace chains through these ultrasonic cleaners Do you have a GRX ( RD-RX815 (2x), RD-RX817 (1x)) bike, or a 12-speed MTB? Shimano's recommendations for these bikes are slightly different. speed full-suspension mountain bikes require slightly longer chains. The difference is just one link. Here is Shimano's recommended sizing method for full-suspension bikes.

Q & A

The reality is that there’s no demand for mechanical from the pros who race on Dura-Ace, and it’s certainly waning on the consumer side too.

Cable friction remains more of an issue for rear shifting over the long haul than with Campagnolo or SRAM though and the shifter internals are worrisomely exposed. Cyclo-cross riders in particular will take issue with the big gaps in the bottom of the hood through which the ratchet teeth are clearly visible. Even on the road, spray from leading riders invariably ended up inside the shifter and tended to gum up the works. It would be a surprise if Dura-Ace was anything less than brilliant, and first impressions of R9200 are overwhelmingly positive. Ultegra RD-R8150 (12-speed), RD-R8050-GS (medium cage), RD-R8050-SS (short cage), RD-RX805 (clutch) For everyday riding you can re-lube (by dripping) between 900-1200km in dry road conditions and after 3-4 rides in wet conditions or when you hear chain becomes dry.

Dura-Ace R9200 wheels

As you can see, some components have lost weight, others have gained a little, and in total the new groupset is claimed to be 35g heavier than its predecessor. Have the two chain ends meet at the large chainring, and then add two or three links, depending on the zero point shown in Shimano’s image below: Shimano says it’s reduced the amount of free stroke in the brake levers and they now benefit from Servo Wave, which makes the relationship between lever travel and pad travel non-linear. All current and previous generation derailleurs are of the Shadow RD type. This includes the 12-speed derailleurs, 11-speed MTB derailleurs, and the last generation 11-speed road rear derailleurs.

Basically, if the point where the two chain ends meet is the ‘end’ of an outer link, add three links (left image).

While many riders will still prefer to keep things fully manual, the overall improvements to the shift make these options much more appealing – I’ve found I quite like the semi-synchro mode for general riding. There you go! You should now be able to size the chain. If you need some chain tools, these are the ones I use: Recently I returned to road bike and indulged myself with a cervelo S5 VWD. When selecting the components I went for SRAM RED all the way for the weight and being so impressed on how fast the shifting happened. The shifting from shimano dura-ace seamed slow and the handle less pleasant in comparison.