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Full Rear Hydraulic Brake Assembly with 12mm Caliper for 70cc-250cc ATV & Dirt Bike
Full Rear Hydraulic Brake Assembly with 12mm Caliper for 70cc-250cc ATV & Dirt Bike
4.83 / 5.0
(6) 6 total reviews
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Product Overview
Get back on the trail quickly with this Full Rear Hydraulic Brake Assembly. This comprehensive kit comes pre-bled and ready for a "drop-in" installation, eliminating the hassle of bleeding air from your lines. Featuring a versatile master cylinder with multiple mounting patterns and a caliper designed for a 12mm axle, this assembly provides professional-grade stopping power for everything from 70cc youth quads to 250cc off-road buggies and dirt bikes.
Product Compatibility
| Vehicle Type | Displacement Range | Fitment Note |
| Dirt Bikes / Pit Bikes | 70cc, 110cc, 125cc, 140cc | Fits most mid-to-large frames |
| ATVs / Quads | 110cc, 150cc, 250cc | TaoTao, Buyang, Coolsport, etc. |
| Go-Karts / Buggies | 150cc – 250cc | Compatible with hydraulic rear discs |
| Axle Compatibility | 12mm Shaft | Caliper bracket fits 12mm wheel shafts |
Specifications
| Feature | Details |
| Wheel Shaft Diameter | 12mm (0.47") |
| Banjo Bolt Size | 10mm (0.39") |
| Master Cylinder Mounts | Dual Patterns: 40mm & 50mm (Center-to-Center) |
| Material | Heavy-Duty Reinforced Metal |
| Setup | Pre-Bled with Fresh Hydraulic Fluid |
| Included Components | Master Cylinder, Caliper, Pads, Reservoir, Mounting Plate |
Key Features
- Pre-Bled for Easy Installation: This system arrives fully assembled and pre-filled with brake fluid. Simply bolt it on and you're ready to ride—no messy bleeding process required.
- Dual-Pattern Master Cylinder: Engineered for maximum compatibility, the master cylinder features mounting holes at both 40mm and 50mm intervals to fit a wide variety of frame brackets.
- Complete System Replacement: Includes the master cylinder, a high-performance rear caliper with pre-installed pads, a remote fluid reservoir, and the necessary mounting plate.
- Rugged Metal Construction: Built from high-strength metal to withstand the heat and vibration of off-road racing, ensuring consistent braking performance without lever fade.
- 12mm Axle Fitment: The caliper bracket is precision-sized for a 12mm rear axle, providing a stable and secure fit for the most common dirt bike and ATV wheel configurations.
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Fitment FAQ
Will this part fit my specific model and year?
This brake assembly is intended for Vehicle Type; Displacement Range. Key physical/spec details from the product data include Wheel Shaft Diameter: 12mm (0.47"), Banjo Bolt Size: 10mm (0.39"), 12mm. Use the compatibility table and product photos together before ordering.
Do I need to match the OEM part number?
Yes. If your original part has a stamped OEM or manufacturer number, match that number first before ordering. For this brake assembly, also compare the caliper bolt spacing, brake hose length, master-cylinder bore, lever side, banjo fitting angle, drum/hub dimensions, and handlebar diameter.
What models or situations does this part not fit?
Do not order this brake assembly for machines outside the listed compatibility, or for units with different caliper spacing, hose routing, lever/master-cylinder setup, drum/hub dimensions, or handlebar diameter. Do not rely only on the model name or engine size.
What should I check before ordering?
Before ordering, compare your original part with the photos and check the caliper bolt spacing, brake hose length, master-cylinder bore, lever side, banjo fitting angle, drum/hub dimensions, and handlebar diameter. Recheck listed specs such as Wheel Shaft Diameter: 12mm (0.47"), Banjo Bolt Size: 10mm (0.39"), 12mm. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.
Didnt notice i ordered breaks for a atv 125 so had to do some spacer adjusting but it works great on my sikk 125 pit bike and looks awsome just need a shorter hose
Worked great universal bracket I fabled a little to work but great for the cost
Excellent
Great fit and easy to install.
Great product. It was packaged nicely without any scratches. and the calaper and master are already filled with fluid and works amazing