Originally Posted by
Recycle
The chain won't move to the next chain ring if the crank isn't moving. Is it possible that you just need to ease up on the pedal pressure as you shift rather than pause?
Nope, I've tried a variety of shifter movements and pedal rates. The only thing that works is to bring the shifter full over, hold it and then pause. Then start pedaling agan. As soon as I start pedaling after the pause the chain moves up to the large ring.
Interestingly I rode my other road bike last evening. This one is Shimano 105/Shimano 105 vs. Shimano 105/Bontrager Race Lite. Other than the different crank both bikes are the same. It shifts like a dream no matter pedal speed or pressure as long as the crank is rotating it shifts.
Since the crank shifter combination came original equipment from the factory I doubt there is a compatibility problem.