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*An e-bike has the same thru-axle as the pedal version in every case.

Thunder Bolt-On Replacement 12mm Thru-Axles

We bill these as 12mm thru axles for fat bikes, but you can get them for any type of bike! Are you the kind of rider that is more likely to be heard long before your are seen coming down a trail? You (and me) are why we build our Thunder Bolt-on axles. For the Clydesdale, the rider “lacking finesse” or those that just seem to somehow manage to break everything. The Thunder Bolt-on axle is solid aluminum resulting in the strongest thru-axles on the market.

  • Designed for big rides and big riders.
  • Available for all 12mm thru-axle hub “standards”, including fat bikes.
  • Machined to the tightest standards in the industry.
  • Designed, built and quality tested in the USA. Proven around the world.
  • Available for rear wheel use only. Not designed to attach Trailers or Trainers.

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