So, first issue overcome. Next issue, parts….
As a standard, Formula 1 used XT M732 or Cooks CQP cranks. But that’s standard, and this bike isn’t standard.
I love Bullseye cranks and, being steel, they fit perfectly with the steel rear end. Only downside is that Formula 1 use Mavic BBs as they have unthreaded, solid carbon fibre BB shells. What to do…
Obviously the answer is @elite504 again. I sat Nick down and explained a fever dream I had that I wanted him to make real. I wanted him to machine out a Mavic BB shell so that it would accept 22mm ID bearing. ‘But a Bullseye crank uses a 22.2mm axle’ he explained. Thats when the second part of my fever dream came into its own.
Take one Mavic BB
Machine out to take double rows of 22mm ID bearings
Finally machine the Bullseye Axle down to 22mm, and you’ll have the first set of Bullseyes that are made to proper tolerances and actually spin.
A world first, a set of bullseyes running on a mavic BB with sealed bearing that will actually work in the UKs weather. This is so in keeping with the whole ethos of Formula 1, great British Engineers working out of their sheds creating magic. Nick is a f*cking genius.
As a standard, Formula 1 used XT M732 or Cooks CQP cranks. But that’s standard, and this bike isn’t standard.
I love Bullseye cranks and, being steel, they fit perfectly with the steel rear end. Only downside is that Formula 1 use Mavic BBs as they have unthreaded, solid carbon fibre BB shells. What to do…
Obviously the answer is @elite504 again. I sat Nick down and explained a fever dream I had that I wanted him to make real. I wanted him to machine out a Mavic BB shell so that it would accept 22mm ID bearing. ‘But a Bullseye crank uses a 22.2mm axle’ he explained. Thats when the second part of my fever dream came into its own.
Take one Mavic BB
Machine out to take double rows of 22mm ID bearings
Finally machine the Bullseye Axle down to 22mm, and you’ll have the first set of Bullseyes that are made to proper tolerances and actually spin.
A world first, a set of bullseyes running on a mavic BB with sealed bearing that will actually work in the UKs weather. This is so in keeping with the whole ethos of Formula 1, great British Engineers working out of their sheds creating magic. Nick is a f*cking genius.