No, you cannot convert 9mm qr to 15mm. The two standards are not compatible. 9mm qr is a smaller diameter than 15mm, so it would not be possible to convert one to the other.
- -Using a 9mm to 15mm QR conversion kit, remove the 9mm QR axle from the hub
- -Install the supplied 15mm axle in the hub
- -Reinstall the wheel on the bike and secure it with the 15mm QR
Can you convert 9mm QR to 12mm axle?
It is not possible to convert a 9mm QR axle to a 12mm axle. The two standards are not compatible with each other.
Can you convert a QR hub to thru axle?
If you’re looking to convert your QR hub to a thru axle, there are a few things you’ll need to take into consideration. First, you’ll need to determine what size axle you need. Thru axles come in a variety of sizes, so you’ll need to make sure you get the right size for your hub.
Second, you’ll need to make sure your hub is compatible with a thru axle. Not all hubs are compatible, so it’s important to check before you make any purchase. Finally, you’ll need to decide if you want to replace your entire axle or just the end caps.
Replacing the entire axle is more expensive, but it will give you a stronger connection. End caps are less expensive, but they’re also less durable.
Can you convert a quick release fork to thru axle?
No, you cannot convert a quick release fork to a thru axle. Thru axles are designed to provide more stiffness and security than quick release forks, so they are not interchangeable.

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9mm hub to 15mm fork adapter
There are a few different ways that you can go about attaching a 9mm hub to a 15mm fork. One option is to use a 9mm to 15mm adapter. This is a simple device that attaches to your 9mm hub and allows you to then bolt on a 15mm fork.
Another option is to use a 9mm to 15mm conversion kit. This is a more complicated setup that requires you to replace your 9mm axle with a 15mm axle, but it is a more permanent solution. Whichever route you choose, you will need to make sure that your 9mm hub is compatible with the adapter or conversion kit that you select.
Conclusion
If you have a 9mm QR bike, you can convert it to a 15mm thru-axle with the help of an adapter. You will need an adapter that has a 9mm QR end and a 15mm thru-axle end. You will also need a 15mm thru-axle wheel.
Once you have all the necessary parts, you can follow these steps to convert your bike:
1. Remove the 9mm QR axle from your bike.
2. Attach the adapter to the bike frame.
3. Insert the 15mm thru-axle into the adapter.
4. Attach the 15mm thru-axle wheel to the bike.
5. Tighten all the bolts.
6. Enjoy your new bike!