Frequent question: How does a bike axle work?

Why are axles better?

Thru axles improve safety by making it nearly impossible for the front wheel to come out of the dropouts while you’re moving. The dropouts can’t lift off of the axles vertically because they have holes instead of a u-shaped slots. … Thru axles also make the fork more robust and less likely to fail.

Why do bikes have thru axles?

With a thicker axle bolted directly onto the bike, strength and stability are greatly improved. The end result is a stiffer front end and the elimination of brake rub. Plus, by adding a camming mechanism (like the QR lever) you can still remove your wheel quickly. Thru axles are safer and improve bike performance.

Why is my bike axle loose?

Often, this is a sign that your wheel hub is loose. When the hub is loose, the wheel bearings can move from side to side, whether they are ball or cartridge bearings. … In that case, you need new bearings. For all other loose hubs, you must tighten the bearings back down.

Do you need to grease thru axle?

Although it is not required, it is recommended that you apply a light amount of grease to your Mountain Bike axles. You can apply it to the threads, and also on the base of the axles themselves. This not only makes them easier to install and remove, it also helps prevent rust and corrosion.

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Is quick release dead?

Quick release hubs, which have been standard issue on quality bicycles since the 1930s (thank you, Tullio Campagnolo), are dead. … It should be noted that a lot of those “crappy” quick release skewers tend to come on really expensive wheels.

What is boost axle?

What is Boost? Boost is the latest and greatest axle platform which all performance mountain bike frame and fork manufacturers are adopting. Boost widens the rear axle by 6mm and the front axle by 10mm. So what does Boost do for you? A wider axle means that the spacing between your hub’s flanges can be increased.

Can I replace QR with thru axle?

You can use through bolts (which can be quick release) in QR dropouts. These require specific hubs that allow for a 9mm front through bolt and a 10mm rear through bolt. On most Shimano hubs (and some similar Formula type hubs) you can replace QR axles with solid axles and use axle nuts on each end.

How do I know if my bike has a thru axle?

Thru Axles

Your bike has a thru axle if the “drop out” is a hole, rather than a U-shaped dropout. This provides added security because even if the lever on the end of the thru axle flips open, it is still threaded into the frame, holding your wheel on.

What is a 12mm thru axle?

From this specification we know 142mm is the hub width (or frame spacing) and 12mm is the diameter of the axle. … Total Thru Axle length from the seat to the end of the threads.

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What is 15mm thru axle?

15mm thru axle uses a different connection on the fork where the axle of the wheel allows a 15mm bolt to go through it. Same concept for a 20mm thru axle. Some wheel manufacturers have adapters that allow you to use the same wheel with the different fork hub standards by swapping out the axle ends.

How tight should my axle be?

150 in/lb is about standard. If it is not tight it will allow the rear wheel to move around and it ties your rear triangle together. Basically the whole back of the bike will feel sloppy. When you tighten an axle it will squeeze your hub and load your bearings.

Why does my bike wheel feel wobbly?

In bikes, speed wobble starts when something causes the front wheel to accelerate to one side. This could be something as simple as the rider shivering on a cold descent, the rider sneezing, a gust of wind, a bump in the road, or perhaps even a wheel that’s not quite true.