R1 vs R2 Cams - whats the difference?
Posted: Sun Oct 18, 2009 12:44 am
As above.
I just noticed in my current bike the inlet is marked as an R2 the exhaust as an R1. Out of my old spare parts engine both the inlet and exhaust are marked R2.
The mark 1 eyeball can't tell the difference. Does anyone out there know?
Is it just a case of NC23 versus NC29?
Why would someone run a 29 in and 23 ex?
I just noticed in my current bike the inlet is marked as an R2 the exhaust as an R1. Out of my old spare parts engine both the inlet and exhaust are marked R2.
The mark 1 eyeball can't tell the difference. Does anyone out there know?
Is it just a case of NC23 versus NC29?
Why would someone run a 29 in and 23 ex?