My blaster as 22/11/8 dirt dog tyres

22" tyres eat up a lot of power, either gear down, larger rear sprocket or smaller front one, or get a smaller diameter tyre.
 
Those 22 give good clearance wot front sprocket Wud u use to put gearing like I've got 20 inch tyres
 
If your going mudding I would go with 22s ...blasters are way to low the way they are...I have 22s and they are fine if you arent so crazy about low end power..