The PG4S is the latest configuration from CROSSRC matching a high torque 27T motor, dual speed gearbox, transmission using metal casting shell, with precision gears and gear shift mechanism. The first gear ratio is 1:7.69 and the second reduction ratio of 1:3.34.
The PG4S follows the PG4 with an overloaded axle. The suspension system was designed and re-adjusted according to the characteristics and requirements of the extreme cross-country climbing movement. It also features a newly designed front & rear spring hydraulic shock absorber, with a shock tube diameter of up to 15mm.
The PG4S uses the latest CROSS RC 2.2inch “FAT-MAN” 135mm diameter cross country tyres. The tread width is 56mm, configured with 2.2inch metal hubs.