SSP-G Performance QMB139 Torque Spring Base sidestand Rim Diameter: 9 inches

Rim Diameter: 9 inches

giving you access to a wider variety of ceramic and sintered friction compounds

E-Ton (many models) — front/rear

DERBI BOULEVARD 200 4T (PIAGGIO M387M)

Tank Racer-150DE /150T-7A

SSP-G Performance QMB139 Torque Spring Base sidestand Rim Diameter: 9 inchesSSP G Performance Torque Spring Base for 50cc QMB139 4 stroke engines and engine based vehicles. The QMB139 Torque Spring Base will allow for smoother torque spring action through the use of roller bearings. This allows the spring to pivot and turn free rather than binding up. The roller bearings reside inside the machined aluminum cup. No more loose ball bearings! Overall Height: 8. 2mm Inner Diameter (Where Spring Sits): 58mm QMB139 50cc 49cc ,