Genuine Tamiya Hop-Up BB-01 BBX Slipper Clutch Set #22071 OP-2071 in factory sealed retail package. Ships 1 business day after payment. Free 30 day returns with 20% restocking fee for opened retail package. Details: Slipper clutches are an essential tuning part in off-road 2WD vehicles. They help protect the drivetrain from sudden surges and help tune the vehicle on slippery surfaces. This slipper clutch is specific to the BB-01 off-road chassis. Features: • Adjusting spring tension allows change of slip timing and acceleration traction, to give more stable performance. • Features precise and durable gear-integrated shaft. Package Includes: • Gear-integrated shaft (20T) x1 • Slipper screw x1 • Plate A x1 • Plate B x1 • Slipper pads x2 • 1050 (10x5mm) ball bearing x1 • Spring seats x2 • Spring x1 • 2.6mm lock nut x1 Use on Chassis: BB-01 Chassis BBX