NCY Gear Set (18*46); 139QMB, CSC, Wolf, 50cc 27.5x2.40 Fits most large frame model

Fits most large frame model vintage Vespa scooters with manual transmissions

Flywheel side seals and 2 rear hub seals

- Material: special aluminium alloy with high silicon content

P/N1200-1047

Make Model Years Kymco Like 50i 2018+ Kymco Like 150i 2018+

NCY Gear Set (18*46); 139QMB, CSC, Wolf, 50cc 27.5x2.40 Fits most large frame modelNCY 139QMB upgear kit for your 50cc 4 strokes is finally here! This kit is made specifically for larger big bored engines and increases your gear ratio by 26%. This will allow you to maximize your big bore kit by increased top speed and a more usable rev range. You won't see much if any improved performance if you install these on a stock top end. For experienced tuners only.