Lightning Bolt-on Axle – 12mm thru axle for FOCUS R.A.T. Bikes – 12×142

(12 customer reviews)

$ 58.00

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. Compatible with Hexlox security systems.

This thru axle is compatible with bikes that have the FOCUS R.A.T. thru axle system and 12×142 hub spacing. M12x1.5 threaded replacement nut included, to replace the FOCUS R.A.T. nut that came on your bike.

SKU: LIG604.F Category:


  • Be free. No longer are you constrained by the proprietary FOCUS R.A.T. axle. Simply replace the R.A.T. nut with our threaded nut and thru axle. A complete solution for a standard threaded axle for your R.A.T. equipped bike.
  • 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. 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. Compatible with Hexlox bike security systems.

This is NOT an axle for attaching trailers or trainers.



  • This axle is compatible with bikes that have the FOCUS R.A.T. thru axle system and 12×142 hub spacing.
  • Weight: 45 grams, included replacement axle and replacement for the RAT nut.
  • 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 6 mm hex wrench.
  • Designed, built and quality tested in the USA. Proven around the world.
  • Compatible with Hexlox security systems.



Need more information about how our axles work?

12 reviews

  1. Tore (verified owner)

    Great axle/nut that replaced the not-so great R.A.T. – axle that my Focus Mares came with. Finally I can change wheels without swearing, sweating and the use of several tools. R.A.T is OK as long as you don’t have to change wheels.

  2. Gonzalo (verified owner)

    Very good quality
    You save 50 grams of weight orginal focus axle.
    Black anonized nut. Much better than aluminum color.

  3. Gonzalo (verified owner)

    Very good quality
    You save 50 grams of weight on the orginal focus axle.
    Black anonized nut. Much better than aluminum color

  4. Terry Evans (verified owner)

    The Robert Axle Project Company and their front and rear axle opinion , I have a 2015 Focus Mares CX Bike with the R.A.T. thru axle system. By replacing the rear R.A.T. thru axle with the Lighting Bolt-On Axle I have removed all of the inconsistency that I was having. The fit and finish of the lightning bolt-on axle is top of the market.

  5. Leithen M’Gonigle

    Really great product. My Izalco Max Disc was having issues with the RAT thru axles and I couldn’t find replacements here in Canada, despite trying. While I did like the RAT axles, these are a far superior and more durable solution. Also, really great build quality. Thank you!

  6. Dion (verified owner)

    Great product, allowed me to utilize my direct drive trainer with my RAT Focus Izalco Max. Great quality. Love it.

  7. Jason Brummels (verified owner)

    The perfect solution to the “perfect” solution from Focus! High quality, easy to use, and great fit. Thank you!

  8. Viacheslav Andzhich (verified owner)

    The original axle on Raven is a night mare. Not only it’s almost impossible to install a wheel during a race, when everything is covered in mud and your hands are shaking like crazy. But it also can’t create enough grip to prevent some hubs from creaking in the frame. And when you tighten the axle more, the thread on the adjuster strips, leaving you in a middle of a marathon without your bike, nice 🙂
    This Robert Axle piece is just great, and, I believe, it’s a must have for anyone who unlucky enough to get a bike with RAT 🙂

  9. Josh Robinson (verified owner)

    What a wonderful product. Makes removing and installing wheels so much easier than the RAT axles that originally came on my Focus Mares CX. Also gives me much greater confidence that they are on securely when installed. Installation was a breeze as well. I’m a believer! Thanks guys!

  10. AK (verified owner)

    Could not have been any easier to install (Focus Izalco Max Disc). Great, precise construction too. The instructions were a little bit outdated but I didn’t really need them. An must-buy if you’re using Focus R.A.T. axles.

  11. Gary Bergal (verified owner)

    RAT replacement fit perfectly. Shipping was practically immediate. All is well in the Focus Mares axle world. Highly recommend if you are frustrated with your RAT axle.

  12. Matt Bootsman (verified owner)

    After breaking a couple of R.A.T. axles and having the rear axle creak and shift, and struggling with rotor rub on my front brake I lost all confidence in the R.A.T axle.

    NOW I get what the big deal is about through axles. The Robert Axle Project axles noticeably improved the ride quality of my Focus Mares. And now I’m not worried about another mid ride failure. Fit and finish are perfect.

    TRAP the R.A.T. You won’t go back.

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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: $12.50 USD, 10-14 business days

• All other International: $12.50 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.

Also Fits Your Bike

  • Our Trainer Axle is designed to adapt your thru axle equipped bike with your on-wheel trainer, such as a 1up, Blackburn, Cyclops, Kinetic, Tacx, Wahoo and many other trainers. Our goal is to fit the thru axle to your bike perfectly, so we minimize spacers and extra parts, providing a clean, high performance axle for your bike. Train, warm up and be race ready and fit for the season.

    This axle is specific to bikes with FOCUS R.A.T. thru axles and 12×142 hub spacing. Includes a replacement R.A.T. nut with the Trainer Axle.

  • Yes! A 12 mm thru-axle adapter for BOB Trailers. These Robert Axles for BOB Trailers are specifically engineered to attach the proven BOB Trailer to your thru-axle equipped bike. Take full advantage of your modern bike with 12 mm thru-axles and harness the rigidity of the thru-axle to haul your BOB Trailer. Set out on any adventure, big or small. Great for off-road tours, trail building, hauling cargo and more!

    This thru axle is specifically for bikes that have a FOCUS R.A.T. thru axle and 12×142 hub spacing. 

  • Robert Axles for Kid Trailers are designed specifically to fit your 12mm thru-axle bike and allow attachment of any hitch-mounted trailer. These fit any trailer that has two wheels and a single point of attachment to the axle. This includes all the two-wheeled child, pet and cargo trailers such as: Thule, Chariot, Burley, Instep, Carry Freedom, and many more.

    Purchase our Kid Trailer axle for your bike. Share your stoke for cycling with your kids. Simplify your life by allowing quick and secure attachment of your trailer to your best and favorite bike. Enjoy the adventure.

    This axle is specific for bikes with the FOCUS R.A.T. thru axle system  and 12×142 hub spacing and comes with a replacement R.A.T. nut found on the derailleur side of your bike. Our nut is threaded (M12x1.5) to accept our solid high-strength Kid Trailer axle.  

  • The Drive Thru is a dummy hub, or chain keeper that replaces your wheel while cleaning the chain. It is fast and an effective way to clean your chain in between races or in your garage. It allows you to fully rotate your cranks and shift through your complete range of gears while protecting the frame. Installs simply with one hand, and is quick and easy to change between bikes. The Drive Thru is also great or packing the bike for transport. Originally developed by cyclocross legend, McGovern Cycles, now brought to you by The Robert Axle Project!

    *How to order: This product is thread pitch dependent. You must order the same thread pitch as the thru axle in your bike. Need help with that? Visit our What Axle Do I Need page!


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