Actually the Shimano BB in question is a 110.5mm unit, some shops call it 110mm, some 111mm. The model code is MM.Does anyone know where you can get cheap 68mm shell, 111mm spindle length square taper bottom brackets from? All I keep finding are 110 or larger. Have they stopped making them?
Anyone? I'm pondering this same question myself now as I'm in the market for a 113 x 68mm BBm and while I know THIS one will fit for example, it would be nice to know the difference between them.What's the difference between the shimano UN25, UN26, UN53, UN54 and UN55, are they the same just varying in quality?.