Supersprox Performance Steel Rear Enduro / Motocross Sprocket – 50 Tooth (50T) | 520 Pitch

Upgrade your machine with the ultimate blend of lightweight performance and legendary drivetrain lifespan. The Supersprox Performance Steel Rear Sprocket is CAD-designed and CNC laser-cut to ensure a flawless, precision hub alignment on your Beta.
Constructed from premium C45 High-Carbon Steel, the sprocket teeth undergo specialized induction heat treatment. This process drastically increases surface hardness and wear resistance, allowing this rear chainwheel to last up to 3 times longer than standard aluminium sprockets while remaining one of the lightest all-steel options on the market.
🏁 Ultimate Mud & Off-Road Defense: Developed on the racetrack to eliminate drivetrain failure under heavy power loads. The exclusive 2x Zinc anti-corrosion black finish and custom tooth geometry make this the perfect rear sprocket option to survive severe track conditions—like technical extreme enduro, muddy winter trail riding, or the gritty sand of the Weston Beach Race 2026!
Key Performance Features:
  • Induction Hardened Teeth: Advanced heat-treating delivers unmatched durability against chain stretch and tooth hooking.
  • Lightweight All-Steel Build: Structural core cutouts shave vital unsprung weight while preserving absolute chain stability.
  • Extended System Lifespan: Special tooth design increases chain contact area, significantly extending the life of your rear hub and drive chain.
  • 2x Zinc Anti-Corrosion Coating: Heavy-duty black factory finish protects the raw steel against mud, track wash chemicals, and rust.
Beta Compatibility Fitment List (2013–2026):

This rear sprocket utilizes the standardized 6-bolt Beta off-road rear hub pattern. It fits a massive range of modern 2-stroke and 4-stroke models:
  • Beta RR 2-Stroke (Enduro / Racing / X-Pro): RR 200, RR 250, RR 300 (All model variants from 2013 to 2026)
  • Beta RR 4-Stroke (Enduro / Racing / X-Pro): RR 350, RR 390, RR 430, RR 480 EFI (All model variants from 2014 to 2026)
  • Beta Xtrainer (2-Stroke Trail): Xtrainer 250 & Xtrainer 300 (All model variants from 2015 to 2026)
  • Beta RX Motocross (4-Stroke & 2-Stroke): RX 250, RX 300, RX 450 (All models up to 2026)
Please use the eBay vehicle compatibility checker at the top of the page to confirm your exact model sub-variant fitment before buying.

Technical Specifications:
  • Brand: Supersprox
  • Tooth Count: 50-Tooth (50T)
  • Chain Pitch: 520 Pitch
  • Material: C45 High-Carbon Steel (Induction Hardened)
  • Finish: Satin Black (Exclusive 2x Zinc Coated)
  • Stock Source: Genuine UK stock supplied via MD Racing Products (Est. 1983)