G- Steering Stem Bearing Kit (139QMB)
Description: Steering Stem Bearing Kit for GY6 50cc 139QMB, and virtually any other scooter with these measurements. Steering head bearing set complete with bearing cups and bearings for the steering column top and bottom. Steering bearings should be replaced when a yoke is fitted or when you notice play, tightness, or knocking on the front end, during normal operation, it will result in a "floating" feel. Often the driver feels nothing of the creeping defect in stock. Only after the change, one has to carry the feeling of a completely new vehicle. Grease before mounting the bearings!
Include the following Bearing kit.
• 1x Upper Nut Hex: 31.77mm / Thread ID: 24mm (M25) / OD: 34.27mm / H: 8.15mm
• 1x Upper Cap Hex: 45mm / Thread ID: 24.2mm (M25) / OD: 48.2mm / H: 8.22mm
• 1x Upper Bearing ID: 27.5mm / OD: 36.62mm / H: 3.93mm
• 1x Upper Base Cup ID: 27.3mm / OD: 41mm / H: 14.38mm
• 1x Lower Cap ID: 31.9mm / OD: 50mm / H: 8mm
• 1x Lower Bearing ID: 31.55mm / OD: 44.1mm / H: 6.33mm
• 1x Lower Base Pebble ID: 30mm / OD: 41.85mm / H: 11mm
• Fit Open Wrench: 32mm - 45mm
• Fit QMB 49/50cc
Supported Models: 139QMB 49cc-50cc 4-stroke, Baccio SPD 50cc, Baja SC50, Baotian BTM-BT49QT, Dazon Diamondback, Excaliber Vanguard 50, Gator Imports Eagle 49cc, JMstar Breeze, Jonway Beta 50, Jonway QT-6 scooter, Lance GTR 50, Longbo LB50QT-6, Moto Fino MF50QT, Roketa Maui MC-08-50, SunL SL50QT-7, Sunl SL50QT-7 Sporty, Tank Urban 50, TaoTao CY50-T3, TaoTao Funny 50, TaoTao Speedy 50, Znen Sun 50 ZN50QT-7, Zongshen ZS50QT-4, and virtually any other rear brake drum with these measurements.
Item Weight & Package Dimensions:
• 0.431 Pounds | 2.995" (L) x 2.353" (W) x 2.353" (H)