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DDC Racing

Beta Professional Moto Kit: RK Super Premium Chain (UW-Ring)

Beta Professional Moto Kit: RK Super Premium Chain (UW-Ring)

Regular price $ 280.00 USD
Regular price Sale price $ 280.00 USD
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Beta Professional Moto Kit: Recommended by DDC Racing for anyone who has an epic riding problem!


Everything you need in one easy step, and the best part is: YOU SAVE HUGE!

Our Combo Kit includes:

  • 1 DDC Beta Front Sprocket (You choose the number of teeth)
  • 1 DDC Racing Beta Rear Sprocket. (You choose the number of teeth)
  • 1 RK Super Premium GB520MXU Gold UW-Ring Chain. (120 link, w/ clip on master-link)
  • 1 Sprocket Bolt Kit by Bolt Motorcycle Hardware. (You choose your preferred bolt style)

Our Beta rear sprocket, (part number IB1) fits: 

  • (2013-current) 250RR, 300RR, 350RR, 400RR, 450RR, 498RR
  • (2015-current) 390RR, 390RS, 430RR, 430RS, 480RR

Please Note: We additionally offer 46 to 52 tooth rears for: (2005-2012) Beta RR & RS models and (2013) RS models found by clicking here. (If you ride an older Beta, we can make you a combo kit to fit! Just email us!

RK GB520MXU (120 Link) UW-Ring Chain 

  • Pin Length: 18.00mm
  • Tensile Strength: 8,000 ft/lbs
  • Engine Displacement: Recommend for use for up to 500cc off-road
  • Seal Type: UW-ring
  • Colors Available: Gold

The GB520MXU RK Chain is a narrow and ultra-light sealed MX/SX racing chain. This chain is the lightest sealed-ring motocross chain available on the market today! Made for the professional motocross racer, 520MXU is the next generation of motocross racing chains featuring RK's new UW-sealing rings. MXU chains are designed to provide the most consistent power delivery and increased chain life. All components are heat treated using Rk's exclusive HIT (Heat Induction Transfer) process. The GB520MXU can be used for both off-road and Supercross events. Many professional off-road race teams from FMF KTM Factory Off-Road to Rockstar Husqvarna Factory Off-Road use the MXU. This chain will last 10 times longer than a traditional motocross non-o ring chain!

Sprocket Bolts by Bolts Motorcycle Hardware: The highest quality motorcycle sprocket bolts on the market today! These will fit nearly any make/model dirt bike.
  • Metric Class 10.9 Carbon Steel - (this is equal to a US grade 8 bolt and is the recommend strength for a sprocket bolt).
  • "Fuji" mechanical locking nuts
  • Pre-applied pressure sensitive thread-lock patch
  • Available in Beta specific (Torx bolts), or standard nickel or black finish (8mm Allen Bolts)
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