$139.95


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Biltwell Thunder Risers

This riser’s one-piece design increases riser stiffness and clamping power on rubber-mounted top trees, and is a boon to performance and style on practically any motorcycle. 

Features:

  • Investment-cast
  • CNC-machined stainless steel
  • 5/16” x 18 t.p.i. stainless steel bar clamp hardware
  • 4 3/8" wide top clamp (4 1/2" wide knurling may show)
Fitment Notes & Exceptions
  • Rigid- and rubber-mounted top trees with 3.5” (89mm) center-to-center mounting holes only
  • The holes on your trees must accept 1/2” O.D. hardware
  • Lower clamps are threaded to accept 1/2"-13 mounting hardware (not included)
Product Style Item # Manufacturer Product # Availability
Black 889793 ER-175-SS-BK Available: Requires 1-3 business days of lead time prior to shipment
Polished 889792 ER-175-SS-PS Available: Requires 1-3 business days of lead time prior to shipment