Originally Posted by
HTupolev
The image is an april fool's joke posted by Rene Herse themselves a couple years ago. It's not a serious bicycle setup.
https://www.renehersecycles.com/comp...ntuple-cranks/
Asymmetric BBs
are a thing, by the way. It allows for a reduction in q-factor, and most riders aren't bothered by the asymmetry: the extent to which it affects leg extension and the rider's angle on the saddle is pretty subtle.
Asymmetric spindles were very common in the age when 3-piece cranksets dominated... On my '79 Fuji America, the Sugino Mighty Tour triple crankset is set up with a 142mm q-factor through the use of a spindle which is about 1cm longer on the DS than the NDS, and the bike pedals beautifully.
Another fan of low Qs and asymmetry. My knew really don't like high Qs. I buy Phil BBs the length I want where the right side is "on" or a tiny bit inboard and the left crank comes close to hitting the chainstay. I have never been able to notice the asymmetry and I've been doing this (or using the older BBs) many decades. Started using Shimano BBs (for their rock solid reliability and zero maintenance) about 15 years ago. My knees have made it clear that must stop.
I do like those Shimanos as measurement tools. Throw the Shimano BB on, install the crankset, measure how much needs to come off each side then order that Phil.
Ben