Brock’s Performance: Tungsten Sleeve Spacer for BST Front Wheel

Print Friendly, PDF & Email

Brocks Performance

Tungsten Sleeve Spacer for BST Front Wheel

The tungsten alloy sleeve spacer replaces the aluminum sleeve spacer in front BST wheels. The spacer mounts between the front wheel bearings (part of the front wheel assembly) helping to prevent wheelies under acceleration. Since the spacer discreetly mounts between the bearings, it does not affect the acceleration advantages of having lightweight carbon fiber wheels. By mounting in front of the bike’s center of gravity, the rider can leave the starting line faster resulting in lower ET’s.


  • Replaces BST # 10010-7000-19-002
  • 20x heavier than the BST aluminum spacer
    • Tungsten spacer weight: 3.64 lb. (1650g)
    • BST Aluminum spacer weight: 0.18 lb. (82g)
  • Made from 95% Tungsten for maximum density
  • Simple and discreet mod to gain an advantage at the track
  • Quicker ET’s with no ill effects on rotational inertia
  • Moves the bike’s center of gravity forward allowing for faster launches off the line
  • Mounts between the wheel bearings as part of the front wheel assembly
  • Designed, machined, and assembled in the USA

Meets XDA, Man Cup, and NHDRO Real Street and Pro Street specifications. Completely hidden and undetectable, this spacer is designed to function with BST carbon fiber front wheels only. No wheel modifications required, reuse of ceramic wheel bearings is not recommended.


Available for the following models:

  • Suzuki Hayabusa 2008+
  • Suzuki GSX-R1000 2009+
  • Suzuki GSX-R600 2006+
  • Suzuki GSX-R750 2006+
  • Kawasaki ZX-14/R 2006+
  • Kawasaki ZX-10R 2011-15
  • Kawasaki ZX-6R/636 2005+

About Brock’s Performance: Brock’s Performance leads the way in sportbike innovation for acceleration addicts. From exhaust systems to wheels, this championship-winning company designs, builds and sells more than 3000 products that make it easier and safer for racers and street riders to reach record-breaking results through a never-ending process of research, development and track testing. For more information about Brock’s Performance parts, go to or call 937-912-0054.