Dura-Ace Archives

News February 21, 2020

SlowTwitch creates ambiguity around Shimano Dura-Ace R9100P Power Meter

I must admit that I don’t frequent Slowtwich that often, and stuff like this is probably why. While I have zero first hand experience with the R9100P, it’s very clear (as in zero ambiguity) that this power meter doesn’t work. While some of this is inherent in the asymmetric design of the 9100 crank, most 9100 based power meters (e.g. Stages, 4iiii, Pioneer), while imperfect, at least function in a predictable way.…

Blog April 5, 2019

Shimano Dura-Ace R9100 175mm 50/34 weight

As a confessed weight weenie, I generally try to find the weight of components before impulsively buying it. There are a couple reasons for this: first it helps slow down the process (i.e. fewer things that I need to explain to my partner later), and second if I’m going to add weight to the bike I want it to be a conscious, measured decision. So it was quite frustrating that I wasn’t…