Need ideas or info on a fat tire rear sprocket flange with drum brake

srcjahc

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Looking for a rear sprocket/ brake drum assy for a fat tire minibike build with a 4/4 wheel. I'm flexible on rear shaft diameter. Anybody point me in the right direction?
 

itsid

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that largely depends on the type of rim you'd like to use..
is it offset or not?

you can buy twin hubs on nearly any kartshop
usually meant to take a sprocket on one and a brake disc on the opposite side
or a sprocket and a rim.

unfortunately those are mostly light duty hubs (smaller bhc)
but they come in various length usally around 4"
And with a centered (zero offset) rim, that makes it useable for a 8" wide rim.

personally I would just buy a wheelhub for the rim, and a sprockethub to match the sprocket..
both made from the same material to match with a similar material tube and weld them together.
downside: sprocket hubs are usually for "live axles" and mini bikes usually use a fixed acle and bearing in the hub.
but nothing one cannot work around with some tools in the shed ;)

'sid
 

srcjahc

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Think a golf cart rim would be too light weight for a minibike? It's wide enough and I could take a three wheeler front axle with drum brake assy and weld a sprocket adapter on the other side.
 
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