Hey guys I need help figuring out the length on the bottom bracket off my French track bike (don’t mind the wheels they are from my road bike and I put them for a mock-up ) I went to my lbs and he suggested me a 109mm bottom bracket but I can’t find anywhere a 109mm French threaded bb not even in velo orange and I only I could find a 107mm and a 110mm . The crankset is a stronglight 107 triple. Which length should I choose?
Thanks for your time !!
by WealthSuperb6003