FVRITO Mini Bike Hydraulic Disc Brake Kit for Baja DB30 & Doodle Bug — 180mm Rotor, Master Cylinder

If you want stronger, smoother braking than stock mechanical setups, this kit converts your mini bike to hydraulic disc performance. It includes a master cylinder and lever perch sized for 22mm handlebars, a caliper with mounting hole spacing matched to common mini-bike forks, a 180mm stainless-steel rotor, pre-bled hose, and pads. The assembly aims to reduce hand effort and improve control for off-road and backyard riding while remaining straightforward to fit on compatible frames.

How does this kit improve braking on a Baja DB30 or Doodle Bug?

The hydraulic system multiplies braking force through fluid pressure, delivering more consistent stopping power than typical cable-actuated disc brakes. You’ll feel smoother modulation and less lever pull effort, which helps in varied terrain and repeated stops.

• 180mm stainless-steel rotor for improved thermal and wear resistance
• Hydraulic master cylinder reduces hand force required
• Pre-mounted caliper and pads for immediate performance gains

What exactly is included and what are the key measurements?

The kit ships with the master cylinder and lever perch, hydraulic caliper with pads, a 180mm rotor, hose fitted with banjo bolt, and mounting hardware. Check the listed dimensions to confirm compatibility before ordering.

• Caliper mounting hole center spacing: 45mm (1.77")
• Brake hose length: 1100mm (43.31")
• Handlebar perch diameter: 22mm (0.87")
• Banjo bolt thread: M10 x 1.25 (manual measurement tolerance 1–3mm)

How difficult is installation and what should I watch for?

Installation is designed to be straightforward for someone familiar with mini-bike maintenance and hand tools. Tighten handlebar clamp screws evenly and avoid over-torquing the master cylinder to prevent damage; routing the hose and correctly aligning the caliper are the most important steps.

• Mount lever perch to 22mm handlebar and secure without over-tightening
• Align caliper to rotor to avoid drag; adjust pads if needed
• Route hose to prevent sharp bends and secure with clamps

Will this replace the original brake on every mini bike model?

The FVRITO kit fits many common mini bike platforms including 79–97cc and similar 212cc 2.8HP mounts, but it is not a direct drop-in for every frame. Some models — for example certain Coleman CT100U variants — may require relocating or modifying the original brake mount to fit correctly.

• Compatible: Baja Doodle Bug, Baja Blitz, DB30 and many 79–97cc mini bikes
• Not direct fit: Some Coleman CT100U frames without bracket modification
• Measure caliper spacing and hose reach before ordering

Who is this for: Riders who want a reliable, stronger braking solution for backyard, trail or casual off-road mini biking — especially owners of Baja DB30, Doodle Bug, Blitz and other similar 79–97cc machines. It’s aimed at mechanically inclined hobbyists and small-shop mechanics who can perform a hose route, align a caliper and secure a handlebar perch. If you need a factory-specific direct replacement without any mount changes, verify fitment against your frame and mounts before purchase.