2 ms·
That sounds quite different. The Shimano Di2 is for manually propelled bikes and it has no way to determine the torque/pedal position. However, derailleur syste
by ndsipa_pomu 2y ago
That sounds quite different. The Shimano Di2 is for manually propelled bikes and it has no way to determine the torque/pedal position. However, derailleur systems are designed to shift under torque, so it doesn't make much odds with most shifts, unless you're doing front chainring shift at the same time as that can make a big change in the pedal resistance which you would want to anticipate.
- amluto 2y agoOn all derailleur bikes I’ve ridden, I try to back off the torque a bit while shifting, and this at least seems to reduce nasty noises and any occasional tendency to feel like the chain slipped one link. But I’ve also never ridden a bike with a top-of-the-line derailleur and chainring set from any of the major manufacturers.
- ndsipa_pomu 2y agoBacking off a bit should only really be needed by either worn or misadjusted derailleurs. Modern derailleurs work really well and there's not a huge difference between top and bottom ranges for the major manufacturers. Most of the difference is lighter weight, better manufacturing tolerances and often the number of gears. Misadjustment is more common for the cheaper ranges as the bikes will often not be as well maintained as the expensive ones.