10-22-2011, 08:39 PM
I took apart the the BB of my Shwinn World Tourist, and ran into a challenge. The picture below shows one of the bearing cups of the BB. This would appear to take a tool that I do not have...
[attachment=2871]
It is a 12 point spline, about 20mm major diameter (bottom to bottom), and around 18mm minor diameter. Any suggestions?
The bike came equipped with a FFS (front freewheel system). The BB is backwards of most BBs, in that the cups attached to the frame face outwards, and the cones on the BB axle face inwards - like a wheel.
I recently purchased a compact double with BB that I intend to install in place of the FFS system. I already have a standard freewheel on the back.
[attachment=2871]
It is a 12 point spline, about 20mm major diameter (bottom to bottom), and around 18mm minor diameter. Any suggestions?
The bike came equipped with a FFS (front freewheel system). The BB is backwards of most BBs, in that the cups attached to the frame face outwards, and the cones on the BB axle face inwards - like a wheel.
I recently purchased a compact double with BB that I intend to install in place of the FFS system. I already have a standard freewheel on the back.
Nigel