YOXUFA Rear Brake Master Cylinder with Reservoir and 70in Braided Hose — Universal 90cc–250cc ATV/Pit Bike Replacement

YOXUFA rear brake master cylinder with reservoir and braided hose is a universal replacement assembly designed for 90cc–250cc ATVs, pit bikes, go-karts and similar small motorcycles.

This compact brake master cylinder kit combines the reservoir, mounting bracket and a 70-inch braided brake line to restore hydraulic rear braking on a wide range of small-engine off-road machines. Built to be adaptable, the assembly arrives with bolts and cable ties and is intended for machines from 90cc pit bikes to 250cc ATVs, including popular makes and many Chinese-manufactured models. The hose and fittings give you a ready-to-install setup when your original rear master cylinder or line is leaking, damaged, or incompatible with modern braided hoses.

Which vehicles will this rear master cylinder fit?

This unit is made to be broadly compatible with 90cc through 250cc dirt bikes, ATVs, go-karts and utility buggies. It’s commonly used on Arctic Cat, Suzuki, Yerf Dog, Helix, Coleman models and many Chinese-built quads where the mounting pattern and hydraulic sizing are compatible.

• Fits 90cc, 110cc, 125cc, 150cc, 200cc and 250cc recreational vehicles.
• Works with pit bikes, quad ATVs, go-karts, buggies and small motorcycles.
• Universal design allows modification to suit non‑standard mounts.

How are the dimensions and fittings laid out?

The kit includes precise size information so you can confirm fitment before ordering. Note the overall lengths and mounting hole spacing to ensure the bracket lines up with your frame and pedal linkage.

• Total assembly length: 190 mm (7.48 inches).
• Distance between mounting holes: 45 mm (1.77 inches).
• Threaded rod length: 66 mm (2.59 inches); oil tube 292 mm (11.49 inches).
• Braided brake hose length: 1778 mm (70 inches) for flexible routing.

What comes in the package and what tools do I need?

The kit ships complete for a straightforward swap or upgrade. Basic hand tools and bleeding equipment are required to fit the master cylinder and purge air from the brake line after installation.

• Included: 1 rear brake master cylinder with reservoir, 1 braided 70-inch brake line, 2 mounting bolts, 6 cable ties.
• Recommended tools: wrench set, pliers, brake fluid, bleed kit or clear tubing and a container.
• Installation tip: verify thread engagement and torque bolts to manufacturer specs; route hose away from heat and pinch points.

Can this unit be adapted if my original mounting is different?

Yes — the assembly is intentionally universal and can be modified to suit non‑standard applications. Light fabrication or the addition of spacers and brackets can align the mounting holes and pushrod with your pedal or lever geometry.

• Universal mount allows trimming or bracket adapters for custom fit.
• Threaded rod length can be adjusted to match pedal throw or linkage.
• Use proper fittings and routing clamps to maintain safe brake line placement.

Who is this for: This YOXUFA rear brake master cylinder kit is aimed at home mechanics, track-day enthusiasts and fleet owners who need a dependable, replaceable rear braking assembly for small off-road vehicles. It’s particularly useful for riders restoring older quads or upgrading from a worn factory rubber hose to a braided line for improved durability and routing flexibility. Always verify the listed measurements against your vehicle before purchase and follow safe bleeding and testing procedures after installation.