RRP RX4 Main Shaft Assembly (Front Pulley is Locked) RRP-034
 
We’re proud to announce the upcoming release of our RRP Main Shaft Assembly for the Rubrix RX4 series. This reproduction project brings new life to a platform long constrained by limited OEM parts availability. Our main shaft assembly retains all original dimensions and specifications of the Yokomo 97' world spec layshaft, ensuring full compatibility while introducing enhanced durability.
Designed with performance in mind, this is a direct-fit upgrade that meets the demands of modern racing.
 
Compatible with:
Rubrix RX4E, RX4D, RMP, and RMX models.
 
Fine Materials: 
7075 Aluminum Front Drive Pulley.
7075 Aluminum Rear Drive Pulley.
GR5 Titanium Main Shaft.
7075 Aluminum Rear Pulley Plate.
4x8x6 Rear One Way Bearing (1).
4x8x3 Bearings (4).
Highlights:
Durability
Consistent Performance
Lightweight
Specs: Front pulley is locked