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Old 06-29-2020, 05:22 PM
srcjahc srcjahc is offline
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Default Need ideas or info on a fat tire rear sprocket flange with drum brake

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?
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Old 06-29-2020, 05:37 PM
mckutzy mckutzy is offline
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What is a 4/4 wheel???
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Old 06-29-2020, 07:29 PM
srcjahc srcjahc is offline
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4" hole spacing..

4/4....4/100.....etc
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Old 06-29-2020, 08:21 PM
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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

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Old 06-30-2020, 08:03 PM
srcjahc srcjahc is offline
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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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