A thru-axle (TA) is a wheel attachment system that secures a wheel on a hub between a pair of dropouts on a bicycle frame or fork. The thru-axle threads directly through the fork/frame holes and into the wheel hub, which makes the wheel secure from detaching.
- Thru axles are a wheel attachment system. They secure the hubs between the dropouts in the frame and fork. Thru axle dropouts have holes, rather than slots. The thru axle itself is a thick, solid pin that is threaded on one end. It inserts from the side of the wheel.
- 1 What is the advantage of a thru axle?
- 2 Why do bikes have thru axles?
- 3 Are thru axles necessary?
- 4 Do road bikes use thru axles?
- 5 Can you convert QR to thru axle?
- 6 What is thru axle and quick release?
- 7 Do I need thru axle adapter?
- 8 Do you grease through axles?
- 9 Are all through axles the same?
- 10 What is 15mm thru axle?
- 11 Are quick release bike wheels safe?
What is the advantage of a thru axle?
1. Thru axles are safer- This is probably the biggest benefit for the average cyclist. 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.
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.
Are thru axles necessary?
YES. Thru axles provide a stiffer ride, which can be beneficial in both the front and rear of a bike. In mountain bikes in particular, this allows for more torque and less flex for your whip. So, if you have a thin, 5mm rod, then you have a skewer.
Do road bikes use thru axles?
The first crop of road bikes with thru- axles used the 15mm diameter front axles common on mountain bikes but usually retained the rear quick-release. Then in the last couple of years, rear thru-axles started to appear on road bikes; usually 12x135mm, although 12x142mm is now more common.
Can you convert QR to 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.
What is thru axle and quick release?
With a thru axle system, the entire axle goes – you guessed it – straight through the fork or frame, and the axle would have to come out before the wheel to bike connection was lost. On a quick release hub, the knurls on the end cap faces bite into the frame or fork to make a secure connection with the hub.
Do I need thru axle adapter?
You’ll need an adaptor in order to fit a thru axle bike to a wheel-on trainer. You usually have to buy the adaptor separately. Most direct drive trainers now come with whatever’s necessary to use it with a thru axle bike.
Do you grease through axles?
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.
Are all through axles the same?
Why are there different sizes? As with many things in the cycling industry, thru axles are not standardized. Your thru axle standard will depend on your bike’s manufacturer and your bike’s intended use.
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.
Are quick release bike wheels safe?
Know Your Quick Release Incorrect quick-release use is dangerous because these mechanisms hold the wheels in place. The most common mistake is simply turning the lever like a nut until the wheel seems tight. Used this way the lever and wheel can loosen as you ride leading to catastrophe.