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.
replacement-axle
Thread Pitch Length of Axle Shaft Application Part Number
Thread Pitch 1.5 mm Length of Axle Shaft 165 mm Application 12mm Bolt-on Part Number BOL 212
Thread Pitch 1.75 mm Length of Axle Shaft 167 mm Application 12mm Bolt-on Part Number BOL 221
Thread Pitch 1.75 mm Length of Axle Shaft 174 mm Application 12mm Bolt-on Part Number BOL 201
Thread Pitch 1.75 mm Length of Axle Shaft 180 mm Application 12mm Bolt-on Part Number BOL 211
Thread Pitch 1.75 mm Length of Axle Shaft 192 mm Application 12mm Bolt-on Part Number BOL 202
Thread Pitch 1.75 mm Length of Axle Shaft 198 mm Application 12mm Bolt-on Part Number BOL 210
Thread Pitch 1.75 mm Length of Axle Shaft 209 mm Application 12mm Bolt-on Part Number BOL 209
Thread Pitch 1.75 mm Length of Axle Shaft 229 mm Application 12mm Bolt-on Part Number BOL 207