The CR3.4 Sherpa is a high-end scale crawler with features that are exceptional for an RTR vehicle. It boasts a realistically designed 5 mm CNC-machined aluminum chassis with a heavy-duty aluminum 4-link suspension system. Oil-filled shock absorbers with internal springs, 5 mm piston rods, and shock boots provide a silky smooth and realistic response. Portal axles not only offer a greater distance from the differential housing to the ground compared to conventional axles, but they also have another significant advantage. In traditional crawlers, the torque generates so much force that the vehicle can jump over obstacles. The design of the portal axles reduces the gear ratio at the wheels and virtually eliminates the torque spikes from the drive. The overall gear reduction ratio of the axle drive is more than twice that of non-portal versions, ensuring a smooth operation.