Pro-X NOK Fork and Dust Seal Kit 40.S485810 - Beta 300 RX / 450 RX 2021-2025

Pro-X NOK Fork and Dust Seal Kit 40.S485810 - Beta 300 RX / 450 RX 2021-2025 Product Description The Pro-X NOK Fork and Dust Seal Kit provides complete front suspension sealing to restore smooth fork action and prevent fluid leakage on your Beta motocross machine. Manufactured in Japan by original equipment seal manufacturers, these kits utilize authentic NOK seals designed to maintain consistent hydraulic pressure and prevent fluid contamination. Each kit delivers complete front-end service components to rebuild both fork legs on your Beta RX. Engineered to exact dimensional tolerances, these components deliver smooth compliance over suspension strokes while minimizing friction and stiction. The set includes two primary fork oil seals and two external dust wipes designed to scrape away mud, grit, and moisture before debris can reach the internal sealing lip. Rebuilding your front forks with this kit ensures positive sealing performance and extended service life across demanding motocross and off-road conditions. Top Features: Pro-X Fork and Dust Seal Kit Manufactured in Japan to exact specifications and tolerances. Constructed using authentic NOK seals for maximum service life and sealing integrity. Complete kit includes two fork oil seals and two external dust wipes to rebuild both fork legs. Engineered to reduce friction and eliminate fluid weeping across the fork stanchions. Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase. Fitment List Year Range Vehicle Brand Vehicle Model & Sub-Model 2021-2025 Beta 300 RX 2024-2025 Beta 450 RX Frequently Asked Questions Q: Does this kit contain enough seals to service both front forks on my Beta? A: Yes. Each kit includes two oil seals and two dust wipes, providing everything required to rebuild both fork legs. Q: Who manufactures the seals contained in this Pro-X kit? A: These kits contain genuine NOK seals manufactured in Japan to match exact original equipment dimensions. Expert Pro-Tip: When sliding new fork seals over the inner fork tube, wrap the top edge and bushing grooves of the tube with a thin layer of plastic wrap or a seal bullet tool lubricated with fresh suspension fluid. This prevents the sharp edges of the tube grooves from tearing or nicking the internal sealing lip during assembly. Recommended Pairings: Beta 2-Stroke Performance Parts & Upgrades Beta 4-Stroke Performance Parts Motorcycle Tools Performance Parts At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. We pride ourselves on great customer service, and every item ships FAST - straight to your door. Moto-House MX - Choice of Champions - Your premier powersports source with great customer service and lightning-fast shipping straight to your door.