NCY Gear Set (18*46); 139QMB, CSC, Wolf, 50cc gear selector while the padded backrest keeps

while the padded backrest keeps your passenger secure under acceleration

red and silver

All-Weather Tread: Versatile pattern designed for excellent water evacuation and consistent grip on urban asphalt

Extremely high quality

Pulley: Dr

NCY Gear Set (18*46); 139QMB, CSC, Wolf, 50cc gear selector while the padded backrest keepsNCY 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.