I think they might be just that custom-milled crank arm from the study? I know we have 150 mm ones on the Rollapaluza kids bikes, and I think GB track team have a couple of them at least to practice high cadence stuff.
I'm sorely tempted to try the shorter cranks for my road bike, I'm guessing I could just put a 3/32" chaining on my On-One track cranks?
Meh, I just moved to 170mm cranks on my track bike. Eff all difference as far as I can tell - marginally better for standing starts, but that's probably all the strength work I've been doing. Who knows. These gains are far too marginal for me to bother with currently.
Meh, I just moved to 170mm cranks on my track bike. Eff all difference as far as I can tell - marginally better for standing starts, but that's probably all the strength work I've been doing. Who knows. These gains are far too marginal for me to bother with currently.