Clamshell doesn't quite fit

[thxcuz]

I got a clamshell sproket mount off eBay and it doesn't quite fit. It's supposed to be 1.5 but it doesn't quite fit on my hub. My hub could be a mm or 2 larger.
Can I grind the clamshell a little to make it fit?

 

[GoreWound]

Do you mean there is a gap between the two halves when assembled on the hub? because that is normal.

if you mean the adaptor will not slide onto your hub i would double check the mesurements with a caliper and possibly even try to get the seller to replace it with the right size.

if the difference is enough that you think it would require more than a light sanding to make it fit you should get a machinist to do it for you.

 

[thxcuz]

Yes, the 2 halves have a slight gap. I guess I'm ok then

 

[crassius]

good point - happens with noobs doing motor mounts too - got to explain to them that anything that clamps around something needs a sufficient gap when tight to be sure it is tight and not just bound together with itself