PX rear hub conversion

[djh66]

I'm in the process of coverting a px engine to 8" rear hub to put in mates Sportique, using SIP's conversion kit http://www.sip-scootershop.com/en/main/ ... r=50015160 however I can't get the hub on, over the supplied brake shoes! Any ideas?

[djh66]

Were/ are there different rear brake cams fitted, with different width of cams (just wondering if the cam is slightly too wide, pushing the shoes out too far)?

[GLscoot]

Why?
The dust plate and the shoes have to change to 8". I've not done this conversion.

[Donnie]

Dave could it just be that there's a few high spots on the new shoes that need a chamfer?

[djh66]

Dave could it just be that there's a few high spots on the new shoes that need a chamfer?

Apparantly, speaking to those ITK, I have to grind a couple of mm of the end of the shoes, that make contact with the cam, this should then allow the hub to go on.

[Donnie]

eh?? off the actual face of the shoe that makes contact with the cam???

[djh66]

eh?? off the actual face of the shoe that makes contact with the cam???

No, no, no...the end of the shoe, that makes contact with the cam

[Donnie]

As in ........

[djh66]

Yes that's correct. Done that tonight, hub now fits over brake shoes :anbrgin; However, this is where I encounter the next problem
The 8" hub now rubs on the brake shoe pivot pins! They don't tell you things like this when you buy products, I expect better from SIP. I suppose I'll have to skim some ally of the pins so they clear the hub.

[Donnie]

I wouldn't have even been happy taking metal off the shoe as you've had to do to be honest I certainly dont think id be taking metal off the pivot pins especially as then you'll probably have no metal left for the cirlips :-/