Feralmoto Hydraulic Brake Conversion Kit for Mini Bikes & Small ATVs — 63mm Caliper Adapter, Pre-Bled Hose

Feralmoto's hydraulic brake conversion kit replaces a cable rear brake on select mini-bikes and small ATVs with a bolt-on hydraulic master cylinder, hose, and bracket built for 63mm ATV-style calipers.

This complete Feralmoto kit is engineered to modernize braking on compatible models such as FRP GMB100 98cc, Motovox MBX10 Monster, Mega Moto MM80 80cc, and Coleman CT100U/CC100X variants (not for Coleman B100). It supplies a pre-filled hydraulic hose, a control lever and master cylinder, plus a precision laser-cut bracket that positions larger 63mm calipers where smaller 51mm mini calipers originally sat. The goal: stronger, more consistent rear braking without welding or permanent frame changes.

How does this hydraulic kit improve stopping performance?

Hydraulic actuation converts lever force into fluid pressure, delivering quicker, firmer caliper response than a cable setup. That yields better modulation and more even pad contact across the rotor, which helps maintain control on rough or loaded riding. The kit supports a 63mm ATV-spec caliper, letting you install a larger piston caliper for increased clamping force.

• Fluid-filled hose reduces stretch and delayed response compared to cables
• 63mm mount spacing accepts larger, more powerful calipers
• Pre-filled system minimizes air pockets for immediate braking

What parts are included and what do I need to install it?

This is an all-in-one conversion: bracket adapter, hydraulic master cylinder with lever, pre-bled hydraulic hose, fittings, and a full hardware pack. Because the kit is prefilled and comes with mounting bolts, spacers, and washers, no additional brake components are required to complete the basic swap. Typical installs are bolt-on and do not require welding or frame modification.

• Laser-cut heavy-duty steel bracket with powder-coat finish
• Hydraulic master cylinder and lever pre-assembled
• Pre-filled hose and necessary banjo fittings and mounting hardware

Will this fit my mini-bike or ATV model?

The bracket and mounting pattern are made to fit FRP GMB100 98cc, Motovox MBX10 Monster, Mega Moto MM80/105cc styles and Coleman CT100U/CC100X frames where rear cable brakes are standard. It is specifically not compatible with Coleman B100. Verify your rear caliper mount points and frame clearance before purchase; some bikes may need minor alignment adjustments or rotor sizing checks.

• Designed for models listed in the product compatibility notes
• Supports 63mm caliper mounting spacing common to small ATVs
• May require rotor/calliper check for clearance and fit

How difficult is installation and what tools are recommended?

Installation is intended for home mechanics with basic tools: metric sockets, hex keys, a torque wrench, and pliers. Because the hose is pre-filled and components are supplied, the process avoids fluid bleeding steps for most users, though verifying bolt torque and hose routing is important. Allow time to test and bed new pads after installation for consistent performance.

• Basic hand tools and a torque wrench recommended
• No welding or frame cutting required — bolt-on design
• Pre-filled line reduces bench bleeding time, but post-install checks advised

Who this is for: The Feralmoto hydraulic brake conversion kit suits owners of compatible mini-bikes and small ATVs who want a straightforward, heavy-duty upgrade from cable brakes to hydraulic actuation. It's aimed at DIYers and small-shop mechanics seeking improved brake feel, quicker response, and the ability to mount larger ATV-style calipers without extensive frame modification.