Quick release bike axle

The advent of large wheels demanded greater rigidity in the fasteners and thus the thru axle was born. These pins are threaded directly into the frame dropouts or parts quick release bike axle them and provide greater rigidity and more secure fastening. As for the rear wheel, the first versions used mm wide pins. The same width as the QR, but with a diameter of 12 mm instead of the 9 mm of the QR.

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Quick release bike axle

One common confusion involves getting your bike mounted onto your smart trainer. Specifically, riders who purchase a direct-drive trainer must figure out how to connect their frame to the trainer properly. But never fear. Quick release was the standard axle used on most bikes for decades. Two small springs sit on either side of the hub. Quick releases are cheap and allow you to easily remove and replace wheels quickly without any tools. Frames that use quick-release levers have slots for the wheel axles to slide into, vs holes used by thru axles setups. Thru axles are a newer technology, having arrived on the scene in the early s as mountain bike frames became stronger and disc brakes demanded better performance from wheel axles. A thru axle is a thick pin with threads on one end. These adapters typically ship with your direct-drive smart trainer and are labeled for easy use. Axle length is measured from the inside of the frame where the quick release dropouts or thru axle holes are found.

This site contains affiliate links to Amazon, Wahoo, and other brands. Thru axles use a bolt that goes through the axel and bolts directly to the frame.

The quick-release axle rapidly replaced screwed bolts on axles and became the standard method used to hold bicycle wheels in place for the majority of road bikes although you still find bolted axles on fixies, singlespeeds and track bikes and formed the basis for the Campagnolo brand. Here, we'll explain why and provide an explanation of the many complexities of road bike axles. A quick-release wheel has a hollow axle, 9mm in diameter at the front and 10mm at the rear, with a 5mm-diameter skewer that passes through it. Until disc brakes on road bikes became commonplace, all road bikes used rim brakes and they all had front axles that were mm wide and rear axles that were mm wide. When disc brakes were introduced, there was a need to increase the width of the rear axle to accommodate the disc brake rotor , so rear axle width increased to mm while the front axle remained at mm.

Are you baffled by the different axle options available for mountain bikes? Our guide below explains the common types of mountain bike thru-axles, as well as traditional quick-release axles. Like many bike-related things, axle standards seem to be subject to continual change, with new ones emerging, gaining traction, then sometimes falling by the wayside as tech trends move on. The main reason for this with mountain bike axles is the drive to build more robust wheels. The chainline needs to be engineered to run efficiently too, which means moving the chainset and cassette ever further outboard as axle width increases. Plus the chainstays need to be splayed out more to fit a wider axle, which increases the risk of heel strike as you turn the pedals.

Quick release bike axle

For many years now, there's been an ongoing battle between the thru axle and the quick release axle. At the moment, the mountain bicycle community has begun to greatly favor having a bike with a thru axle, as it has a few slight advantages over the standard quick release axle. As an all-type bicycle rider, but more specifically a mountain biker, I always want to make sure that my bike has the best axles that'll hold my wheel through any terrain. To know which is best, I have to keep an open ear and an open mind on the advancements that every day brings. In this article, we'll be taking a look at which bike axle reigns supreme and more importantly why. These clamps use compression to hole the wheel in place. Furthermore, the quick release axle rod slides through the wheel hub.

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Contact us FAQ Sizing information. We hope this article clarified quick releases and thru axles for you, and helped you get going on Zwift more easily. A quick-release wheel has a hollow axle, 9mm in diameter at the front and 10mm at the rear, with a 5mm-diameter skewer that passes through it. So far, so good. In some cases, the lever may be removable so you only need one for the pair of wheels — DT Swiss, for example, uses this system. We evaluate the success of our newsletter to continually improve it. More targeted offers. Support This Site. By Eric Schlange. Boost wheels and axles are now found on many mountain bikes and this standard is also found in a smattering of gravel bikes and ebikes. Please activate JavaScript to be able to use all functionalities of the shop. A black example of a thru axel. When disc brakes were introduced, there was a need to increase the width of the rear axle to accommodate the disc brake rotor , so rear axle width increased to mm while the front axle remained at mm.

The quick-release axle rapidly replaced screwed bolts on axles and became the standard method used to hold bicycle wheels in place for the majority of road bikes although you still find bolted axles on fixies, singlespeeds and track bikes and formed the basis for the Campagnolo brand.

They thread through the front and rear axles into the hub body, which absorbs the load. When the quick-release axle is tightened, the wheel is automatically secured in the track and can no longer slide out. He reviewed some of the first electric bikes for Cycling Weekly and has covered their development into the sophisticated machines they are today, on the way becoming an expert on all things electric. Here, we'll explain why and provide an explanation of the many complexities of road bike axles. Axle length is measured from the inside of the frame where the quick release dropouts or thru axle holes are found. Click to subscribe. See more. Get Started. If you do need a replacement, many thru-axles have their axle spacing, thread pitch and overall length stamped on them, which makes hunting down the correct one a bit easier. Sorted by Relevance.