Is there much difference between the Shimano Tiagra BB (BB-RS500) and the £5 more expensive Ultegra (BB-R60) in terms of bearings/performance/sealing?
Shimano exploded view doesn't really show anything.
afaik the only real difference is the weight. The tiagra one is larger and made of metal, the ultegra one is made of what I assume is a very rigid plastic. The ultegra one needs the (supplied) adapter ring to screw it on since it's smaller but it looks a lot nicer than the tiagra one imo.
Is there much difference between the Shimano Tiagra BB (BB-RS500) and the £5 more expensive Ultegra (BB-R60) in terms of bearings/performance/sealing?
Shimano exploded view doesn't really show anything.