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Redesigning a rear motorcycle hub.

Redesigning a rear motorcycle hub.

Redesigning a rear motorcycle hub.

(OP)
Hey everyone,

I currently have this motorcycle with a rear drum brake. I am hoping to do redesign the hub to accommodate a rear disc brake  with the calipers mounted on the swingarm. Does anyone have and comments or suggestions as to where to start? Thanks.

RE: Redesigning a rear motorcycle hub.

Talk about re inventing the wheel winky smile

Try the motorcycle surplus market, scrapyard or, even Craig's List.  It's not rocket science to re lace a wheel to a new hub, BUT WHY?

Rod

RE: Redesigning a rear motorcycle hub.

Buy a complete assembly from some other model that has approximately the same rear wheel size, but already has a disk brake. Have a look at the way rear brake calipers are mounted on existing production models.

RE: Redesigning a rear motorcycle hub.

I'm with Brian.  There a loads of used wheels on Ebay or Craig's list that will have a disc brake fitted.  You just need to match up axle diameter and probably make a spacer or two to get it centered.  The hardest part will be attaching a caliper to the swing arm.  Don't go overboard on wheel width or you might run into a clearance problem with the chain.

RE: Redesigning a rear motorcycle hub.

what model bike?

RE: Redesigning a rear motorcycle hub.

(OP)
Thanks folks. I yanked a hub from a 91 yz. Working with it right now.

RE: Redesigning a rear motorcycle hub.

(OP)
Alright folks I'm back.

Right now I'm cadding up the hub and I'm having trouble determining the placement of the spoke holes. Here's a picture explaining my problem.

I'm currently using Solidworks to model the hub, but I have a very vague idea of how to do them. Notice that the holes are angled.

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