CILOYU Mini Bike Rear Disc Brake Kit for Coleman CT100U — 180mm Rotor, 7/8" Lever, Complete Replacement

CILOYU Mini Bike Disc Brake Lever Kit is a complete rear disc-brake replacement set designed to upgrade stopping power on 7/8" (22 mm) minibike handlebars, compatible with Coleman CT100U and several popular mini bike models.

If your minibike needs a more responsive rear brake than the original equipment, this CILOYU kit supplies a lever, cable, caliper, pads and a 180 mm rotor to restore or improve rear braking performance. The components are built from durable steel and abrasion-resistant cable materials, and arrive ready to install for many small off-road and utility minibikes.

Which minibike models will this brake kit fit?

This kit is designed for rear-brake applications on a range of mini bikes and pit bikes that use a 7/8" handlebar brake lever and a 180 mm rear rotor. Verify your brake caliper mount pattern before ordering.

• Compatible models listed: Coleman Powersports CT100U, CC100X, Baja Motorsports Doodlebug DB30, Motovox MBX10/MBX11, Monster Moto MMB80/MMB105.
• Brake lever fits 7/8" (22 mm) handlebars.
• Caliper mounting hole distance: 51 mm (2.01").
• Rotor diameter: 180 mm (7.08"); rotor center hole: 37 mm (1.45").

How does the kit improve braking feel and reliability?

The lever and cable are made to provide a smooth pull, while the steel rotor and abrasion-resistant cable materials focus on longevity. The rear caliper and brake pads are sized to give a firmer stopping response than many stock minibike setups.

• Smoother lever action compared to many OEM levers.
• Abrasion-resistant wire rope and rubber cable sleeve for longer life.
• Steel rotor resists deformation under normal use.
• Includes two replacement brake pads for immediate use.

What are the key dimensions and installation details?

Knowing the cable length, lever size and caliper bolt spacing helps ensure the kit will mount correctly on your minibike. Measure your existing parts against the specifications below before purchase.

• Overall cable length: 61"; cable sleeve length: 55"; effective moving length: 4.96".
• Lever diameter fit: 7/8" (22 mm) handlebars.
• Caliper mounting holes spaced at 51 mm (2.01").
• Rotor: 180 mm diameter with 37 mm center hole.

What comes in the box and what should I prepare for installation?

The kit includes all primary rear-brake parts to replace worn components, but you may need basic tools and a little mechanical experience to install them correctly. Check mounting points and thread sizes on your minibike before beginning.

• Included: 1 x 7/8" brake lever, 1 x 61" brake cable, 1 x rear brake caliper, 2 x brake pads, 1 x 180 mm disc rotor.
• Recommended tools: metric wrenches, hex keys, torque wrench, and pliers for cable routing.
• Confirm you need a rear caliper—this kit supplies the rear version only.
• Bleeding or pad bedding may be required depending on your bike’s setup.

Who is this for: The CILOYU Mini Bike Disc Brake Lever Kit is suited for minibike owners and hobby mechanics who want a straightforward rear-brake replacement or an upgrade from worn stock components. It’s appropriate for riders of Coleman CT100U and similar minibikes who can measure mounting points, install brake hardware, and perform basic adjustments. If you need a front caliper or a custom rotor size, verify compatibility or consult a mechanic before purchase.