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88d50

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im going to build a go kart and i got these too little motorcycles for free but i plan to use the wheels off them for the kart. but the axle bolts seem kinda small. probably just a little bit bigger then a bicycles axle. how thick are axle usually on a go kart? i wana use the wheels because they got disc brakes on them and i got them free!
 

88d50

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the studs that come out both sides are 3/8" i was thinking maybe take out the bearings and change them to ones with a bigger id.
 

solomon

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Your idea seems fine, and yeah those bolts are too small i am using 1 or 1 3/4 inch bolts on my kart
 

88d50

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would those disc brakes be enough to stop if i only run one of them? each wheel has a rotor but they run off a cable like a bicycle so my easiest option would be to run only one.
 

anderkart

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A common but smaller sized rear axle on a go kart is 1". Some of these taper down to 3/4" where the rear wheels mount.

If your going to run a live axle (both wheels drive instead of 1) you dont need or want bearings in your wheels at all. Both wheels would need to be locked directly to the axle.


Your front wheels would need bearings. Typically they need to fit on a spindle thats a 5/8" or sometimes 3/4".

What do your rear wheels look like? Maybe they'd be a better fit on an axle.
 

anderkart

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would those disc brakes be enough to stop if i only run one of them? each wheel has a rotor but they run off a cable like a bicycle so my easiest option would be to run only one.

Do they have mechanical calipers or hydraulic? I was also wondering what size engines these motor cycles had.
 

88d50

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there mechanical brakes. i got 2 of the bikes for free so i wante to use all 4 wheels off both bikes if i could. the bikes had a tiny little 2 stroke motor.
 

anderkart

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So is your (left) wheel pic a rear wheel with the sprocket on the other side? Now that I look closer it seems like it might have a 1" or so axle size... If so what size is it, and is the axle removable/secured to the hub(s?) with sets screws and a keyway meyby?

I was thinking If these wheels end up working you could go ahead and run dual brakes, just hook both cables to your pedal.
 
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