Lightning Bolt-on Axle – Front 12 mm x 117 mm x 1.0 Thread

Lightning Bolt-on Axle – Front 12 mm x 117 mm x 1.0 Thread

(13 customer reviews)

$ 42.00

After years of mountain biking with thru-axles with bulky handles that seemed to strike every trailside obstacle, we needed a better option.

Our Lightning Bolt-On thru axles offer the highest quality, simple, lightweight alternative to that bulky handle. Available in a range of sizes that fit both front and rear wheels on all types of thru-axle equipped bikes. Learn about compatibility with Hexlox security systems.

SKU: LIG506 Category:


  • Lightning is Better. Our front and rear Lightning Bolt-On axles offer a stronger, more durable, lower profile and lighter weight option to replace your stock thru-axles.
  • Low Profile. No more bulky handles to strike trail obstacles or create wind drag. Aerodynamic design.
  • Light Weight. Our axles are internally bored to remove unnecessary material without compromising strength.
  • Easy to install. Our matching front and rear Lightning Bolt-On Axles only require a standard 6 mm hex wrench for easy installation and removal.
  • Better Tolerances. Manufactured in the USA to the tightest tolerances using aerospace materials and CNC manufacturing. No longer will your axle loosen while riding.
  • Available Security. Learn about compatibility with Hexlox bike security systems.

This is NOT an axle for attaching trailers or trainers.



  • The diameter of this axle is 12 mm and the true length of the axle shaft is 123 mm. A 6 mm tapered spacer is included for lengths or 123 mm or 117 mm. Please note: Thru-axle lengths do not equal hub standards. An axle has to be longer than the hub to fit in the frame. A 15×100 hub does not equal a 100 mm long axle.
  • This axle has a 1.0 mm thread pitch.
  • Weight: 32 grams
  • The axle is precision CNC machined in the USA from 7075 aluminum and hard anodized for rugged durability. Our axles are built to the tightest standards in the industry.
  • No special tools required. Design allows for installation or wheel removal using your standard 6mm hex wrench.
  • Designed, built and quality tested in the USA. Proven around the world.
  • Learn about compatibility with Hexlox security systems.


Need more information about how our axles work?

13 reviews

  1. John Watkins (verified owner)

    This and the matching rear axle I purchased for my Specialized Diverge are just so much better than the stock axles. No ugly spring-loaded handle, just a clean, neat looking hex socket head. Just a little copper assembly grease on the shaft and thread made for an easy, bind-free torque-up to the recommended 12Nm.
    The axle selector menu is easy to use and the delivery was really fast to the UK. Top quality products and a top class service, both fully deserving of five stars.

  2. Tim Boundy

    Purchased the front and rear 12mm thru axles for my ’16 Crux. Top quality manufacturing, fits beautifully – all the good stuff. A very nice finishing touch to a carefully spec ground up build. Nice Job!

  3. Dmitry (verified owner)

    I needed a front axle on a bicycle. I could not find a suitable one anywhere. Asked a question in support. Got a quick reply. I took a chance. Ordered with delivery to Moscow. Received an order in 3 weeks. The item came up. The part itself has a convenient spacer for the short and long sleeve.Satisfied with everyone. Good job.

  4. Tobias (verified owner)

    For my Canyon Ultimate CF SL this is the right axle. I like the high quality, the clean look (no lever anymore) and, of course, the really nice weight of only ~32 g.
    The only thing I don`t like is the spacer I need – makes the look a bit more “bulky”. Two axle lengths would solve this issue. I would even pay more for this more in complexity.

  5. Gerry Durishan (verified owner)

    Thanks so much for getting this to me so quickly. It fits my 2017 Specialized Elite front wheel perfectly. I like it better than the original because it uses a larger hex tool. It’s just a better feel as you install it. I take my wheel off twice per day due to the roof rack I use and I feel it will take a bit of abuse.

  6. Roger Murer (verified owner)

    Great replacement Axle for my Specialized Sequoia 2018. The stock Axles with 5mm hex wore out. I guess the 6mm hex will hold out much longer and even the torque is specified on the Axles.
    Shipment to Switzerland was fast, would buy any time again.

  7. Bjorn (verified owner)

    Perfect fit to replace a lost front axle for my 2020 Specialized Roubaix. Quality fit and finish. I would purchase from Robert Axle Project again without any reservation.

  8. Kim Jenkins (verified owner)

    2018 Canyon Aeroad- rear installed clean. Not thrilled about using a goofy silver washer for the front. Ruins the aesthetics. Ok but the front really should be as clean as the front, if not more so!

  9. Fred Kost (verified owner)

    I was seeking a front axle to match my rear axle (6mm and removable lever) on my Canyon Endurace. This axle was perfect, lightweight, and no lever once installed. The 6mm hex matches rear axle set up for removable lever. It did require that I use the provided spacer. Great solution for a hard to find axle.

  10. Johnny (verified owner)

    Fits and looks wonderful on my 2020 Canyon Grail AL 2.0. I ended up using a hack saw to cut it to length and smoothed it with some high grit sandpaper, which worked flawlessly. High quality and looks so sleek.

  11. John Bobelak (verified owner)

    I Used this axle on my Canyon Aeroroad. Unfortunately it came with a tapered spacer that must be used on the Canyon forks and its not a great interface. There is too great of a side load while cornering which causes the disc brake to chatter and make noise. . This was not an issue with the Canyon axle that came with the bike. I see that the Robert axle Project has an optional flat (non-tapered spacer) that may work better, but would cost me an additional $20 with shipping to get the flat spacer that was not provided with the axle. For the costs, I would expect that the axle would have come with both spacer options or have an axle for the proper length of the Canyon Aeroroad fork which the size selector said would be appropriate for my application.

  12. Michael Johnson (verified owner)

    I bought this axle for the front wheel on my Canyon Ultimate. I changed the wheels to new Zipp 303’s and the front hub is slightly wider than the stock wheels. It fits, without the spacer, perfectly.

  13. Roger Bacon Jr (verified owner)

    By far the nicest thru axle I’ve seen. Quality and material are top notch! And love that they made different versions for heavier riders too 🤙🏼

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All orders from our website are via US Postal Service, from Oregon, U.S.A. We make every effort to ship your order within one business day.

Shipping rates and average delivery times are:

• United States: $7.50 USD, 3-4 business days

• Canada: $21.50 USD, 10-14 business days

• All other International: $21.50 USD, 12-16 business days

We are unable to offer expedited shipping. If you need expedited shipping of our products, please visit our Dealers & Distributors page for options. We cannot take responsibility for any delays during shipping, including delays in customs or incorrect shipping information.

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