Boysen rad valve

[CRrider125]

Ive heard how good the boysen rad vavles help the 2002 cr125s, how much do they help the 2001s?

 

[little jeff]

I don't have a CR 125, but I do have a KTM 300EXC 02' I put a Rad Valve on and it was like a whole different bike. I think it is definately a good investment.
Little Jeff