Hello all. I've jumped into working on bikes and now want to build one a day. Anyway, I've got this 90s DB Approach and want build up for my daughter as a 1 x but don't know all the pitfalls. It has a 68 x 119ish mm bb, 128 mm rear spacing, & 700c wheels. Old drivetrain was a 3 x 7 Altus C10.
I'd like to go with 8 or 9 cassette but I'm unsure if I can and not certain about proper bb size. Build recommendation are wanted. Please advise and thank you.
by EmploymentGloomy2125