mini dirt bike sprocket to a BMX hub?

[Danjr1]

whats the best way to mount a mini disc bike sprocket to a bmx hub?

 

[Danjr1]

problem sorted! what gear ratio should i aim for when using a 49cc pocket bike engine on a 20" wheel?

 

[DuctTapedGoat]

You should probably tell the forum how you figured it out.

Anyways, what's your drive sprocket? It would also help to know what sizes of driven sprockets you're going to be choosing from.

 

[Danjr1]

I'm using mini moto sprockets! The one I've got at the moment has 5 holes which match the rubber washers you can get for the 66/80cc engine kit. I'm going to bolt it on! If I need to change the sprocket in future, I can simply use my current sprocket as a template for any other 5 spoke sprocket.

 

[Danjr1]

Using a 68 tooth sprocket but they go up to 78 I think

 

[AzToker]

It would be awesome if you could post some pics so we can get a view of what you did. Thanks!