Originally Posted by bigtee
thinking on buy new clutch system for my mtx4r would mugen pinion gear screw on nt1 clutch bell?
Nope, it will not.
But you can use the entire transmission from the NT1... Clutch, spurs, housing, driveshaft and the outer pulley also.
The only modification you need is to modify the shaft spacer that the NT1 uses in order to shim it correctly.
Also, if you change the brake pulley to a 20T (like the MRX4X) you will be able to use the same internal ratio of a NT1... In order for the 20T brake pulley to fit, you do need to use the eccentrics of the MRX4X (The X, not the R or stock).
I have seen some people with the Xceed clutch at my track, and all of them have had the same problem. The quality of the clutch shoe is not good, and after a few laps, you could see the "yellow powder" from the clutch shoe all over that part of the car.
If you don't want to spend $$$ on the NT1 transmission, you can always get a Capricorn clutch which is worth every penny.
Hope this helps.