Mugen MRX4-R

(Source: Mugen)

MRX4-R is Upgraded version of MRX-4 included the optional parts which was used for world championship and Japan national.

MRX4-R Standard Parts:

H0148 Front Bulkhead
T0154 Eccentric Hub
H0149 Rear Bulkhead
H0566 Front Damper Stay
H0567 Rear Damper Stay
H0568 Rear Damper Case Long
H0147 Rear Long Upper Arm
H0773 Clutch Shoe (Yellow)