Moreover, I found that in the 2019 model they increased the frontal bump back to 30T so that in practice show that they actually found that their choice was wrong !!. In contrast, the slowest 28T / 46T mode is too slow and is not useful.Īll my calls to the company to replace the frontal touch with greater learning were not answered and ignored! IMPORTANT: Check the thread pitch of your current axle by comparing it to the pitch size difference illustration on this listing. The gear set with 28T in the front and 11T on the rear make the fastest ride suitable for 12-14 mph. The gear set (Crank and cassette) of this 2018 model has been downgraded compared to any Stache 7 of previous years (2017 or 2016) as well as to any similar models of the company or of of any other manufacturers. First of all, with the gear set, and even more with the manufacturer response (or lack/poor response.). We can help bridge a thru axle compatibility minefield.I purchased Trek Stamodel six months ago. “Failing that, your local bike shop can help you figure out compatibility using measuring gages or by calling the manufacturer directly. “Check the manufacturer’s technical information website,” he says. If your axle has no writing on it, Ward says you have a few options. While you’re handling the axle, check to see if the end is cone-shaped or flat and measure the length from the base of the head to the end of the threads. ![]() Cameron Ward at Brockton Cyclery in Toronto recommends first pulling out the thru axle and checking for printed numbers. Some thru axles have the thread pitch printed on the side (marked as TP). In this example, the axle is 12mm wide and the hub spacing is 142mm so we still need the tread pitch, axle length and axle seat type. The company offers a sheet you can print to find your thread pitch and axle length. Be warned, though it will point you towards the proper thru axle, it often won’t give you all the information you need on your axle standard leaving you with no choice but to buy the company’s product. Robert Axle Project has a tool to figure out what size thru axle you need. It screws directly into the frame or fork, so the thru axle has to have the right distance between threads (thread pitch) as the bike. If you are unsure of the correct thread pitch or hub length, please consult with the manufacturer of your bike, or your local bike shop before purchasing a Burley Thru Axle. ![]() 142x12 thru-axle rear, and the option to run a dropper post. Thru axles vary in length, width, seat type (is the end cone-shaped or flat?) and thread pitch/length. We take a look at Trek's Stache 8 to see how this big wheeled hardtail handles aggressive trail riding. That information is good, but it’s not all that we need. It’ll look something like: 12×142 (width x hub spacing) sometimes written as 142×12, a popular road bike size.Įxample of a road bike’s spec information If you’re looking for your rear thru axle size to buy an adaptor for an indoor trainer you’ll want the ‘frame’ axle information, not the ‘fork’. 7.48 x 5.12 x 0.71 inches : Package Weight 0.06 Kilograms : Item Dimensions LxWxH 7 x 5 inches : Item Weight 0.14 Pounds : Brand Name SRAM : Model Name Maxle Stealth Rear MTB, 12X142, Length 174mm, Thread Length 20mm, Thread Pitch M12X1. ![]() P1.0 - Number of threads is 10 (Syntace) P1.5 - Number of threads is approximately 7 (Shimano) P1.75. Your thru axle standard will depend on your bike’s manufacturer and your bike’s intended use.īefore you do anything else, do a quick google of your bike’s specs (make sure to specify the year). Measuring the thread pitch of your bikes thru axle. Why are there different sizes?Īs with many things in the cycling industry, thru axles are not standardized. Even if it somehow comes loose, your wheel won’t detach the way it could with a quick release skewer and vertical dropouts. While a quick release skewer uses compression to hold the wheel in place, a thru axle will uses a thicker rod threaded into the frame to hold the wheel in place. They go in through one side of the fork/rear drop out, through the hub and screw into the other side of the fork/drop out (hence the name thru, or through, axle). Originally designed for downhill bikes, thru axles are rapidly taking the place of the classic quick release skewers. A quick release skewer is much thinner than a thru axle Why thru axles? But don’t worry, once you figure out what you need it’s (mostly) smooth sailing from there. If you’ve looked into new wheels or if you’ve even thought about connecting your thru axle bike with a trainer or a trailer you’ll know that the simple cylindrical component can cause some major headaches. Thru axles allow for easier and more consistant alignment, which is important for disc brakes which need to be properly aligned in a narrow calliper. From mountain to road bikes, disc brakes are quickly becoming the norm these days and with them comes the thru axle.
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