We are building Sean Collier a new bike.
We are using a Rad and a 10mm spacer.
We are not building a fire breathing dragster... Just the opposite.
We are trying to build more torque... and we will
His current bike "The Beast" which was built by Frenchy is
very mildly ported and it wears Sean out.
So if I was going to MX it I would use the Rad and the 10mm spacer.
Woods Gnarly
Gearing?
It would depend on the track...
Sean use to use a 14/51 but was wearing out the chain guide bad.
Currently Sean is running a 13/45 which is close to 14/48.. stock being 14/47
I know some others that run 14/47 on mx tracks..