Universal Parts 180mm Wave Brake Rotor - 3-Bolt Scooters

This Universal Parts 180mm Disc Brake Rotor replaces a warped, scored, or worn-thin front rotor on full-size scooters, including many GY6 125cc/150cc and 139QMB 50cc models. Its wave-cut stainless steel braking surface with slotted and drilled petals sheds heat and clears brake dust for strong, consistent stopping. The red offset center hub bolts on with a 3-bolt pattern.

Key Features

• 180mm wave-cut rotor: Stainless steel petal design with slots and drilled holes.
• Red offset center hub: Cup-style hub with six vent slots.
• 3-bolt mounting: 57mm bolt spacing, 8.5mm bolt holes.
• Heat and dust control: Cutouts help cooling and keep the pads clean.

Technical Specifications

• Part number: 110-51
• MPN: 4793
• Outer diameter: 180mm
• Inner diameter (center bore): 48mm
• Rotor thickness: 3.5mm
• Offset: 7mm
• Bolt holes: 3
• Bolt hole spacing: 57mm
• Bolt hole diameter: 8.5mm
• Hub color: Red
• Country of origin: China
• Brand: Universal Parts

Compatibility

Fitment varies by make and model. Compare the diameter, center bore, bolt spacing, thickness, and offset with your existing rotor before ordering.

Installation Notes

Clean the hub mounting surface, use thread locker on the rotor bolts, and torque them evenly. Bed in new pads and rotor with several moderate stops before riding hard.

• 180mm Wave-Cut Stainless Steel Rotor
• Slotted and Drilled Petals
• Red Offset Center Hub with Vent Slots
• 3-Bolt 57mm Mounting Pattern
• Verify Dimensions Before Ordering

Part Number: 110-51 | MPN: 4793 | Outer Diameter: 180mm | Inner Diameter: 48mm | Thickness: 3.5mm | Offset: 7mm | Bolt Holes: 3 | Bolt Spacing: 57mm | Bolt Hole Diameter: 8.5mm | Hub: Red | Origin: China | Brand: Universal Parts

Universal fit for full-size scooters with front disc brake systems using 180mm rotor, 48mm center bore, 3-bolt 57mm bolt circle. Common on GY6 125cc/150cc and QMB139 50cc scooters. Verify dimensions before ordering.