180mm Wave Brake Rotor - 3-Bolt Scooters
ITEM# TT-16115
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Description
180mm Wave Brake Disc for GY6 and 139QMB Scooters
This 180mm wave-style brake disc is made to swap in for worn or damaged discs on full-size scooters, including many GY6 125cc/150cc and 139QMB 50cc models. Its wave-cut stainless steel face helps it shed heat while delivering dependable stopping power. It is one of the essential scooter brake components for keeping your scooter stopping smoothly and safely.
Build and Layout
The disc uses a petal-shaped layout with slots and drilled holes that aid cooling and help release brake dust, which can sharpen brake feel. A bright red offset hub adds a bold look, and it includes six vent slots to move air through. At 3.5mm thick, the disc is designed to stay steady under use.
Fitting and Upkeep
This disc mounts with three bolts on a 57mm pattern, using bolt holes that measure 8.5mm across. For a secure fit, wipe the hub surface clean before mounting and apply thread locker to the bolts. After fitting new pads and this disc, make several moderate stops to bed them in before riding hard.
Specifications
- Material: Stainless Steel
- Size: 180mm Outer Diameter
- Inner Diameter: 48mm
- Thickness: 3.5mm
- Offset: 7mm
- Bolt Holes: 3
- Bolt Hole Spacing: 57mm
- Bolt Hole Diameter: 8.5mm
- Hub Color: Red
- OEM Part Number: 4793
- Fits: GY6 125cc/150cc and 139QMB/QMB139 50cc scooters with 180mm, 48mm bore, 3-bolt 57mm rotors
Compatibility
Compatible with:
- GY6 125cc / 150cc scooters (180mm OD, 48mm bore, 3-bolt 57mm)
- 139QMB / QMB139 50cc scooters (180mm OD, 48mm bore, 3-bolt 57mm)
Selecting the right part: Check that your scooter's disc matches: 180mm outer diameter, 48mm center bore, 3 bolts on 57mm spacing, and 7mm offset.
Browse more: Scooter Brake Parts · Scooter Bolts, Screws & Hardware · Scooter Parts
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