Originally Posted by
chucky
Exactly. Derailleur shifting is optimized for races which don't have stopping vs traffic which involves a ton of stopping and accelerating from said stops (perfect for the shifting method employed by hub gears).
You mean the races where the racers need to be able to pedal full out, without pause, and still shift through several gears while doing so - something an IGH is not as good as a derailler at...
Originally Posted by
chucky
Since you can't shift while stopped with a derailleur, you have to shift while accelerating or decelerating. That means you're in the wrong gear when you're accelerating and decelerating....which is a large percentage of the ride in traffic.
With a derailler you use a technique called "downshifting a gear or two as you come to a stop".
Originally Posted by
chucky
...What it sounds like is "whoosh" while I leave you behind at the traffic lights
Only against people who don't downshift when they're coming to a stop. For most of us we would smoke you as we don't need to wait, or put a pause in our pedalling in order to upshift away from the light.
Originally Posted by
chucky
Even Lance has a dead spot. If you don't then maybe you should take your derailleur and join the Tour.
Not a big enough dead spot for the igh to always immediately shift while under load.
There are other points that I didn't quote, I'm not ambitious enough to go look them up.