FAQS

GENERAL QUESTIONS

Yes. Every new Robert Axle comes with a limited warranty issued to the original owner. Please see our Warranty & Returns page for the full warranty information.

Yes, we can ship to any country. We also have a list of distributors around the world on our Dealers & Distributors page.

Shipping rates are shown in the Shopping Cart, once you add your first product. Our shipping rates are flat rate. You can combine your order with friends to save on shipping.

No, we do not offer expedited shipping at this time. If you really need your axle tomorrow, we recommend you call BikeTrailerShop.com at 800-717-2596.

Yes, we certainly want you to support your local bike shop. In the U.S., we work with bike distributor, Quality Bicycle Products (QBP) to get Robert Axles into bike shops. Check with your shop to see if they can order through QBP. In other countries, we work with distributors and dealers. Check our Dealers & Distributors page for more information.

THRU AXLE QUESTIONS

Pull out the ‘thingy’ that goes in your hub to hold the wheel on.

  • If it is 12mm in diameter and threads into the frame then it is called a thru-axle. If it 5mm in diameter and goes into a nut that is loose and not attached to the frame, then you have a skewer, quick release skewer or thru-bolt. We only produce solutions for thru-axles. We cannot help you with longer skewers or thru-bolts.
  • Some bikes have 10mm thru-axles. Sorry, we can’t help you on this one – we only sell 12mm thru-axles.

Need more explanation? Read this handy article about thru-axles on BikeRumor.

Use our handy Fitment Selector to find out what axle you need for your brand/model of bike and the attachment that you’ll be using. This also the place to go if our Fitment Selector does not list your bike.

No, we do not make any 10mm thru-bolts. We only produce 12mm thru-axles for the rear and front 15 mm thru axles for attaching Old Man Mountain Cargo Racks

With most bikes you cannot convert to a thru axle because the frame will not allow it. However, Trek’s “Closed Convert Dropouts” are one example of a manufacturer that has designed their frames to be convertible. Check with your bike manufacturer.

Yes, we certainly want you to support your local bike shop. In the U.S., we work with bike distributor, Quality Bicycle Products (QBP) to get Robert Axles into bike shops. Check with your shop to see if they can order through QBP. In other countries, we work with distributors and dealers. Check our Dealer & Distributor page for more information.

Before installing the axle, lightly grease the axle and threads. Be sure to check your torque setting before every ride. We recommend that you not use your Robert Axle without a trailer or accessory as the axle does stick out a little more than you stock axle (except for the Bolt-On Axles)

TRAILER QUESTIONS

Please read the instructions and warranty of the trailer that you own to know how much weight you can carry.

The BOB Trailer Axles are specifically designed for use with a BOB Trailer The BOB Trailer Axles require you to take the stock “bobbins” off of your BOB Trailer skewer or purchase bobbins from us. The Yoke Mount Trailer Axles have M10x1 metric threaded studs on each end to attach an Extrawheel, Surly Bill and Ted trailers or customer trailers.

Yes! One of our favorite past times is rallying on singletrack trails with a BOB Trailer. The trailer tracks surprisingly well on singletrack. Give it a try.

We produce solutions for all the most common wheel-mounted trailers. Most commonly people are looking for a child/kid/cargo trailer solution, we call those Hitch-Mounted Trailers because they attach with a hitch provided by the trailer manufacturer.

Yes, you can fit your BOB Trailer on to a wider bike, such as a Boost 148 mountain bike, plus tire bike or a fat bike. Watch our YouTube video here for instructions on how to do this.

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