1975 RD125 Build

[apgamer]

Pulled apart the wheels to start working on the hubs. If it fits in the lathe, it's much easier to polish. Plus I went a little crazy and turned off the ridges in the center of the hubs. (hope they had some safety margin built into those things)

 

[eyhonda]

The ridges are for strength and to some degree cooling. When you hit the brakes, the hub encounters a lot of force. Maybe someone can chime in, but I would be concerned. Not only did you remove the ridges, but maybe the hub wall is a bit thinner too.

 

[apgamer]

In hindsight, it might not have been a good idea.......it just looks soooooo good

 

[eyhonda]

Yes, it does. Any surface machined looks cool!

 

[Ringo]

There's a steel liner in the hub, so I wouldn't be too concerned with strength. Cooling, however, may have been affected...

 

[50gary]

http://Click to add title
Newreardiscbrake004.jpg image by 50garyThis is as much a question as a statement, I think the drum brake liner material is cast iron? I'm doing my second my second Honda CX500 drum to disc bake conversion and the Honda is cast iron.
Cheers 50gary