Shimano Chain 116 links w/o end pin CN-HG901-11 11-Speed

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You don’t need to add any extra links, just connect the chain and you’re good to go. Note that this last method only really applies to non-shadow rd derailleurs and cassettes smaller than 28T. Off-road (GRX and 12-speed MTB) chain sizing 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. That mechanical Dura-Ace is no more will be a blow to purists, and I can’t help feeling a little wistful.

Dura-Ace R9200 is, as expected, showing signs of being an exceptionally good groupset. Max Wilman / Immediate MediaPower Loss vs distance travelled among different lubricants. Results from an independent, single lube application, double blind test where the test chains were appropriately prepared by Zero Friction Cycling* then numbered and sent directly to Wheel Energy company to conduct a friction test at 250W resistance, 100rpm cadence, 40km/h speed, 25deg C and 25% humidity. The test continued until chain reached 10W losses. Chains and testing machine had around 50km warmup/break-in period. (* "Muc-off Nano" was a factory NTC chain) With development of the new groupset focused primarily on road disc brakes, the rim brake R9250 levers are not wireless.

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. The new asymmetric chain is superb, though, running whisper-quiet – highlighting the relative clamour of SRAM Red – and offering real-world improvements in shift smoothness both up and down and at either end over last year’s 10-speed chain. A convenient master link (not tested here, unfortunately) makes for easier removal for cleaning, too, eliminating the need for expensive single-use pins.

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Have the two chain ends meet at the large chainring, and then add four or five links, depending on the zero point shown in Shimano’s image below: 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. If the point where the two chain ends meet is the beginning of an outer link, add two links (right image). 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.

More noticeable is the shifting speed. While the bigger gains are supposed to be at the rear, it’s the front shifting that really impresses. In normal riding, the shifting seems to be impossible to fluster. You can crash through gears if you’re an absolute savage about dumping multiple gears at very low cadence, but by and large, the groupset lives up to its claimed ability to shift under hard pedalling loads. 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. 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. There you go! You should now be able to size the chain. If you need some chain tools, these are the ones I use:

Faster, smoother shifting and lower gearing

Shimano probably could have made the new calipers lighter but we wouldn’t trade their superb stopping power and fingertip modulation to save a few grams: shimano probably could have made the new calipers lighter but we wouldn’t trade their superb stopping power and fingertip modulation to save a few grams James Huang Braking performance – best yet from Shimano Dura-Ace R9200’s 12-speed cassettes will come in two ratios of 11-30t and 11-34t initially, with an 11-28t option to follow.

Despite the concealed housing’s additional bend, cable friction is only slightly increased over 7800’s more direct route. Add in Shimano’s typical Light Action feel and you get a slightly more vague and disconnected feel than before but rear shift performance is still on par with 7800 overall if not quite as crisp. Chain movement across the cassette, though, is impeccably smooth – aided in part by the new asymmetrical chain – and full-power shifts are as reliable as ever in spite of the curiously flexy carbon rear derailleur cage. You’re almost there, but there’s one more thing to keep in mind. Some chains are directional. They’ll either have an arrow ‘ printed’ on them, or something that indicates the inside or outside of the chain. Instead, 7900 can only downshift two gears per sweep instead of three and although Shimano claim a 20 percent reduction in shift lever throw, our tape measures and protractors suggested otherwise. Upshifts still require a lengthy 20-degree arc (or 40mm of linear throw, 30mm of which is nothing but slop) and single downshifts an even longer 27 degrees or so.

Dura-Ace R9200 riding impressions | Lightning-fast shifting

For Shimano chains in particular, pay attention to the text and logos on the chain. These will be on one side of the chain only, and that side should be facing out (away from the frame). 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. The front upper section above the lever pivot is fully enclosed, an aesthetic departure from previous years. One watt – or 10 watts, for that matter – may not matter much to casual riders just out to enjoy the day, but that sort of 'free speed' is a huge deal to the right audience.