Moose Offroad Rear Beta Caliper Rebuild Kit — 2005-2024 Beta RR RS RR-S RX Xtrainer

Moose Offroad — Restore Precision Braking, High-Grade Rubber Seals, and Factory Reliability

Eliminate rear brake drag and restore a firm pedal feel with the Moose Offroad Rear Brake Caliper Rebuild Kit. Engineered to meet the rigorous demands of off-road and street riding, this kit is the professional solution for maintaining your Beta's braking system. Over time, heat cycles and environmental debris degrade internal seals, leading to fluid leaks or sticking pistons. This comprehensive refresh kit returns your rear caliper to Factory Quality performance at a fraction of the cost of a replacement unit.

Every kit is specifically curated to include all essential rubber components—such as internal pressure seals and external dust boots—manufactured from premium elastomers that resist swelling and deterioration caused by aggressive brake fluids and high temperatures. Where applicable, the kit also includes replacement brake pins to ensure your pads slide smoothly, preventing uneven wear and rotor overheating. Whether you're racing Hard Enduro or commuting on a Dual-Sport, this kit ensures your Beta remains safe and predictable.

• Complete Hydraulic Refresh: Includes all necessary rubber seals, boots, and hardware to rebuild one rear caliper.
• High-Grade Materials: Seals are engineered to withstand extreme braking temperatures and corrosive DOT fluids.
• Restores Performance: Eliminates piston sticking and fluid leaks for a firm, predictable brake pedal response.
• Direct OEM Alternative: Precision fitment for Beta RR, RS, RR-S, RX, and Xtrainer models across two decades of production.
• Off-Road Ready: Built to survive the mud, sand, and chemical cleaners common in motocross and trail maintenance.

Moto-House MX Pro Tip:

Cleanliness is the most important part of a caliper rebuild. Use a dedicated brake cleaner to remove all oxidation and old fluid residue from the caliper bore before installing the new Moose Offroad seals. We recommend lubricating the new rubber seals with a small amount of fresh DOT 4 brake fluid before seating the piston to prevent tearing or "rolling" the seal. After installation, always perform a full system bleed to ensure 100% air-free performance. A properly rebuilt caliper not only stops better but reduces the rolling resistance that can sap horsepower.

Technical Specification	Details
Mounting Position	Rear Caliper
Kit Contents	Seals, Dust Boots, and Pins (where applicable)
Riding Style	Off-Road / Street / Dual-Sport
Fitment Range	Beta 125cc - 525cc (2005-2024)

FAQ Questions

Q) Does this kit include a new piston?
A) No, this is a seal and hardware refresh kit. If your caliper piston is severely pitted or scored, it should be replaced separately to ensure the new seals do not leak.

Q) Will this fit the Beta 300 RX motocross model?
A) Yes, this kit is verified to fit the rear braking system of the 2021-2024 Beta 300 RX.

Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. We are the best motocross shop in Central Florida with lightning-fast shipping.