nope but BB90 has maxed out the shimano axle length .. I think the pre-load bolt engages less in it than BSA.
Is it axle based rather than BB interface then?
What is SiSl then?
144 or 141.5 if you use the old axle with the new arms - and the arms don't mash your chainstays up.
7900 is nearer to 150 apparently - and doesn't have as good a heal clearance as a BB30 crank.
@Howard started
London Fixed Gear and Single-Speed is a community of fixed gear and single-speed cyclists.
Howard
nope but BB90 has maxed out the shimano axle length .. I think the pre-load bolt engages less in it than BSA.
Is it axle based rather than BB interface then?
What is SiSl then?