NCY Bearing Spring Seat - 139QMB, Dio, Elite 50 4 stroke 50-10 (equivalent to 90/100-10)

50-10 (equivalent to 90/100-10)

Note: Depending on your electronics location

Pulley since 1987

Universal fit for vintage Vespa and most scooters with cable pinch bolts

Pro Tip: This rack is the perfect foundation for a Prima Roll Bag (Large or Small) which can be strapped easily to the platform behind the backrest

NCY Bearing Spring Seat - 139QMB, Dio, Elite 50 4 stroke 50-10 (equivalent to 90/100-10)Eliminate torque spring bind in your CVT with the NCY Bearing Spring Seat. Standard spring seats allow the torque spring to twist against the clutch pulleys, causing inconsistent shifting and dead spots in acceleration. This NCY upgrade uses a ball bearing track so the spring rotates freely smoother back shifting, reduced friction, and snappier throttle response. Compatible with stock and aftermarket torque springs. Made in Taiwan by NCY. Design: