Thaumaturge
Devout Dirtbag
In the process of refurbing a wheel that uses sealed bearings i want to take the chance to swop out the old solid axle for a Q/R one. However.. i see the old bolt has polished collars and shoulders to support/position the inside face of the bearing cartridge. The replacement bolts i'm seeing for other don't have that so are they important for proper running, or are well positioned/tightened locknuts good enough?