Profile’s Tech Tip #13: Correct spindle lengths for Inboard and Outboard Euro bottom brackets
The most common tech question we get here at the shop: If I have an outboard BB kit, what spindle length works best? Rule of thumb: 5-5/8″ for an inboard, 6″ for an outboard. Let Profile’s Gus Lanzilotta go into more detail here. We hope this helps?