Lightning Bolt-on Axle – Front 12 mm x 122 mm x 1.75 Thread

Lightning Bolt-on Axle – Front 12 mm x 122 mm x 1.75 Thread

(12 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: LIG512 Category:




12 reviews

  1. Mike (verified owner)

    I purchased 2 sets of thru-axles from The Robert Axle Project. One set was for a cross bike and the other for a fat bike. Thus far both have performed flawlessly. Especially noticeable is the weight difference and stiffness vs the stock axles. Thanks guys for a great product.

  2. Brady (verified owner)

    Perfect fit, quick shipping, great way to clean up your axles.

  3. Golfdocs (verified owner)

    Used the online guides to direct me to the exact axle I needed for my bike. It arrived and fit perfectly. It doesn’t rattle or come loose and seems very high quality and fit. Weighs less than my quick release axle that came with the bike. Less to snag my wheel on when riding thru brush. Would definitely purchase again. Thanks for a beautiful product.

  4. Daniel Finnis (verified owner)

    Fits perfectly and is so much less fiddly than the cam-over/QR style that my Checkpoint came with.

  5. Joe (verified owner)

    My second set of Lightning Axles. (new bike for 2nd pair) Website was great help in ordering correct size and threading. Much cleaner look than standard thru Axles. Perform flawlessly. Makes it more difficult to steal wheel and not catch thru axle on other cyclists bikes or other obstacles. Weight savings was nice feature, but not my primary reason.

  6. Matthew Phelps (verified owner)

    Used the measurement guide to find the right axle for my Trek hybrid. Product was shipped and arrived very quickly. You can tell the machining on this axle is very high quality. The fit ended up being perfect, as well as its capability of being used with a Hexlox. Overall, high quality product.

  7. Antonio B (verified owner)

    Very good product, well finished an lighter than original DT SWISS on my Trek Emonda 2019. Shipped in few days in Italy. Very satisfied!

  8. Gerald A Stanley (verified owner)

    Perfect in every way. High quality, easy and precise size calculations, fast shipping, easy installation, and perfect fit. Thank you!

  9. Andy (verified owner)

    Purchased a front and rear axle for my 2017 Trek Domane SL6 Disc road bike and couldn’t be happier. Sizing is perfect and they look great. Much sleeker that the bulky axles that came with the bike originally (DT Swiss) and delivered to Australia directly in less than a week. I noticed that Trek are starting to fit some leverless axles themselves on the 2020 version of the bike but they don’t look or feel anything like as good as the Robert Axle components.

  10. Michael Scott (verified owner)

    I found the Robert Axle Project products on however they didn’t seem to stock the full compliment. I was fortunate to have gone to and search for exactly what I needed. The bicycle search engine was a total lifesaver and took the guess work out of the order. I would highly recommend purchasing direct from the Robert Axle Project.

  11. Ross Paton (verified owner)

    I used the fitting tool on the website which confirmed the axle I needed and it fit like I expected.

    Looks super clean in my bike as well as there is no more chunky lever to look at as I am fighting a headwind or grunting up a hill.

    I ordered it in a Saturday afternoon and it was delivered to my home in Calgary, Alberta mid-day the following Tuesday (this was after waiting months for an order Of a lesser product from e-bay).

  12. Will P (verified owner)

    I purchased a set fork and rear and they have the exact measurement as my bike’s need.
    These are so much lighter than the quick release thru-axle that came with the bike and I do see the benefit of bolt-on as now I don’t need to worry about the lever being caught by shrubs, etc.

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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.

You Might Also Like:

  • Purchase Robert Axle Thru axles and Hexlox locks for both your axles and for other vulnerable components.

    Here’s how:

    1. To secure your Lightning Bolt-On Axles, you’ll need one 6mm Hexlox for each axle. These include the magnetic insert for our axles which, since they are aluminum are not magnetic.
    2. Add at least one key to install and remove your Hexlox system. You will receive a key which matches the Hexlox you order. Order multiple keys if you want a spare.
    3. For other all other components, check your bike for what you want to secure. Options include Hexlox’s that fit in 4mm, 5mm and 6mm bolts, so check your bike and purchase what you need!
    4. Don’t forget to go here (link) and order our Lightning Bolt-on Axles  for your bike. Enter your bike information into our Fitment Selector database.
  • They’re finally here! Robert Axle Project team socks. DeFeet WoolEater Comp socks have been tried, trusted and true since 1992. The WoolEater Comp is a thin, low bulk sock that features DeFeet Aireator mesh for superior breathability and comfort. *See the sizing chart below!

    • 6″ height.
    • 36% Nylon, 31% Merino Wool, 31% Recycled Polyester, 2% Lycra
    • Naturally antibacterial to keep those tootsies smelling fresh.
    • Machine wash cool, tumble dry low.
    • Made in North Carolina, USA.

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