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Biltwell Thunder Risers
  • Biltwell Thunder Risers - Black
  • Biltwell Thunder Risers - Black
  • Biltwell Thunder Risers - Polished
  • Biltwell Thunder Risers - Polished

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Biltwell Thunder Risers Videos

Biltwell Thunder Risers

A large number of late-model Harley owners who prefer tall handlebars convinced Biltwell to develop the 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. Bold branding is an uncommon sight on most of Biltwell's motorcycle parts, however, the Thunder Risers are an exception.


  • Investment-cast
  • CNC-machined stainless steel
  • 5/16” x 18 t.p.i. stainless steel bar clamp hardware

Fitment Notes & Exceptions

This is a universal fit part; it may or may not fit without modification.

  • 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 RevZilla Item # Manufacturer Product # Availability
Black 889793 ER-175-SS-BK In Stock: Ships within 24 hours
Polished 889792 ER-175-SS-PS Available: Expect 1-2 business days lead time prior to shipment


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We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

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If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

See our full Return Policy for all of the pertinent details.

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Biltwell Thunder Risers 5 5 1 1
One of the nicest parts on my bike I have never found a bilateral brat I don't like. The guys over there continue to knock it out of the park. The riser is a solid pice with nice style cues. I have it mounted to a 35mm HD front end with a set of bolt well zed bars. It looks and performs exceptionally. No slip even when taking it on some fire roads. I recho end this for anyone in search of a quality riser. September 28, 2015
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Biltwell Thunder Risers
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