DIY sprocket adapter

I would be worried about putting all the torque from the engine through a 1" diameter clamshell adapter that uses only friction to prevent it from slipping around the smooth circular hub body.
The tooth count of the sprocket makes a big difference to how much torque is being applied.
It would perhaps be less worrying if there was some sort of set screws from each clamshell half to holes drilled into the hub body.
Many/most hubs are waisted, not a straight cylinder, and this only makes things harder.

This is why I gave up on the clamshell, and made an adapter for the 6 hole disc brake rotor mount (which I wasn't using anyway because I have a rim brake on the rear).
 
This is why I gave up on the clamshell, and made an adapter for the 6 hole disc brake rotor mount (which I wasn't using anyway because I have a rim brake on the rear).

I am thinking about this.

The 700c worries me. It’s so fragile.
 
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That hub looks a lot like mine. It's filthy so odds are the bearings haven't been serviced regularly, so check them.
The rim, I'm sure you are aware, isn't suitable for rim brakes. You'll probably need new spokes to build up with a different rim unless you find one with the same "ERD" measurement.
I still haven't had a go at wheel building. It's just so easy to find good used wheels that I have been able to avoid it so far. :oops:
 
That hub looks a lot like mine. It's filthy so odds are the bearings haven't been serviced regularly, so check them.
The rim, I'm sure you are aware, isn't suitable for rim brakes. You'll probably need new spokes to build up with a different rim unless you find one with the same "ERD" measurement.
I still haven't had a go at wheel building. It's just so easy to find good used wheels that I have been able to avoid it so far. :oops:
When you start dealing with fat bikes you lose that luxury..
 
When you start dealing with fat bikes you lose that luxury..
Wheel building looks like fun!
I have kept a scrappy wheel so I can try disassembling and rebuilding it without the risk of screwing up anything valuable. I really need to learn this skill.
I just haven't got around to trying.. because.. life. :rolleyes:
 
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