GY6 Front Hydraulic Brake Assembly

GY6 Front Hydraulic Brake Assembly for Various Scooters

This front hydraulic brake assembly suits a variety of scooters built around the GY6 engine. It arrives already bled at the factory, so you won't need to bleed the system yourself when fitting it. As one of the GY6 scooter parts we carry, it offers a dependable way to upgrade front braking, especially if your current components are worn.

Build and Layout

The master cylinder is made from die-cast aluminum and comes with a polished brake lever and a fluid reservoir fitted with a blue cap. A brake light switch is built in, with a wiring harness that ends in green, blue, and yellow spade connectors. It mounts directly onto standard 7/8" (22mm) handlebars and requires no changes to the bar.

Performance and Fit Notes

The 39" (990mm) rubber hydraulic hose is reinforced to handle high pressure, helping the system hold up across different riding conditions. The single-piston caliper has a silver aluminum body and a piston with a rubber boot. Before ordering, check that your existing caliper's mounting bolts are spaced 44mm center-to-center so the unit will line up correctly.

Specifications

• Material: Die-cast aluminum, rubber
• Size: 39" (990mm) brake line length
• Position: Front, right-hand side
• Color: Polished lever with blue reservoir cap
• Caliper Type: Single-piston
• Caliper Bolt Hole Spacing: 44mm center-to-center
• Handlebar Clamp Diameter: 7/8" (22mm)
• Brake Light Switch: Included
• Fits: GY6 125cc and 150cc Sport Style Chinese scooters with standard 7/8" (22mm) handlebars

Compatible Models

Fits:

• Baja SC150, Roketa Cayman, Maui, Capri 150cc series
• JM Star Tomahawk II 125 / 150
• SUNL SL150-21B, Tank Sporty 150, Viaggio 150
• Vento Phantom, X-Treme XM-150
• Qingqi, Jonway, Peace Sports, TaoTao, and various GY6 Sport body variants (125cc and 150cc)

How to choose: Measure the distance between the two caliper mounting bolts, center to center. It needs to be 44mm. The brake line should be 39" (990mm).

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