LEIMO KPARTS Hydraulic Brake Master Cylinder for 90–250cc Go Karts & ATVs — Aluminum, Pre-assembled

LEIMO KPARTS Hydraulic Brake Master Cylinder converts pedal force into reliable hydraulic braking for 90cc–250cc go karts and small ATVs.

This master cylinder is a direct-fit replacement designed for a wide range of Chinese and international small-vehicle brands, including Roketa, Sunl, Kandi, BMS, Kinroad, and others. Manufactured from aluminum alloy and supplied pre-assembled with bolts and nuts, it’s built to restore or upgrade your vehicle’s braking circuit with straightforward installation and a one-year warranty.

Will this master cylinder fit my 125cc or 250cc go kart?

Compatibility covers many common engine sizes used in recreational and utility karts and ATVs: 90cc, 110cc, 125cc, 150cc, 200cc, and 250cc. Fitment depends on two key mounting dimensions and the pedal linkage spacing.

• Brake pedal hole-to-hole distance: 20 mm.
• Cylinder mounting hole-to-hole distance: 60 mm.
• Common compatible brands: Roketa, Sunl, Kandi, BMS, Kinroad, American Sportswork, Baja.
• Compare pictures and measurements before purchase to confirm fit.

How durable and reliable is this hydraulic master cylinder?

Constructed from aluminum alloy under strict quality controls, the cylinder is corrosion-resistant and designed for repeated pedal cycles. It is a one-way piston hydraulic device that translates pedal movement into fluid pressure sent to the brake calipers or wheel cylinders.

• Aluminum alloy housing resists rust and reduces weight.
• Pre-installed bolts and nuts for easier installation.
• Sealed piston design to maintain hydraulic pressure.
• Backed by a 1-year warranty for manufacturing defects.

What do I need to install and maintain this part?

Installation is a straightforward mechanical swap for compatible models but requires basic tools and attention to bleeding the brake system after fitting. Regular inspection and fluid maintenance will keep the unit operating correctly.

• Tools: wrenches for the supplied bolts, pliers, and a line wrench for brake fittings.
• After installation: fully bleed the brake lines to remove air pockets.
• Use the manufacturer-recommended brake fluid; check seals and fluid level periodically.
• Inspect mounting torque and pedal linkage for secure attachment.

What comes in the package and what warranty is offered?

The product ships as a complete master cylinder assembly with fasteners already installed to simplify mounting. LEIMO KPARTS supports the part with a one-year warranty covering manufacturing defects; reach out to customer support for replacement or refund within that period.

• Included: 1 × hydraulic brake master cylinder with bolts and nuts installed.
• Check photos and measurements before ordering to ensure compatibility.
• Warranty: 1 year for quality-related issues.
• Contact seller for replacement or refund if defects appear during warranty.

Who is this for? This master cylinder is intended for enthusiasts, repair shops, and owners of small go karts, buggies, and ATVs who need a robust replacement or upgrade for their hydraulic braking system. If you have a 90–250cc Roketa, Sunl, Kandi, BMS, Kinroad, or similar vehicle and your current master cylinder is worn, leaking, or underperforming, this unit provides a direct, cost-effective option that arrives pre-assembled and ready to install. Verify the 20 mm pedal spacing and 60 mm mounting distance against your vehicle’s specifications before purchasing.