The reason why we dropped the end bolt is this:
- if someone uses single speed - we really suggest using a bolt thru axle - such as Coaster SS; in this case you don't need ANY tensioners; the bolts will hold the hub securely in place; Also, you can easily tighten the chain by hand.
- if someone uses gears, then there are TWO kinds of forces acting on the axle - pushing towards the BB (from pedaling forces) and pulling the other way (from braking); therefore the end bolt will only help in one direction, but if the axle is not properly secured as then the hub will move anyway (to the back) when braking hard
