2 ms·
Right now this is a function of cassettte/chain design rather than derailleurs; not sure electronic shifting could do anything to improve that situation. Moder
by exabrial 4y ago
Right now this is a function of cassettte/chain design rather than derailleurs; not sure electronic shifting could do anything to improve that situation.
Modern Shimano drivetrains with Hyperglide can be shifted under "quite a bit" of torque, but I wouldn't say a 1x12 can be shifted under "full gas". I've yet to break a chain on my 2x11 GRX even at full stupid. My 2x11 even survived Unbound Gravel this gear with the _absolutely_ mudfest of riding conditions in the second half of the 100mi race. I have broke a chain on my 1x12 under full gas though; is an XT Cassette, XT Chain, and XTR derailleur and a plain-ol mechanical shift cable system.
All that being said, you absolutely should prep your gears at the same time you're prepping your body position. GRX/XTR and to a lesser extent Di2 allow you to delay this to the last second.