Bicycle Wheel Fork Axle 15mm Front Thru Axle to 12mm Thru Axle Fork Adapter

I have an older used wheelset that has 15x100 thru-axle in the front. I bought a new bike that uses a fork with 12x100 thru-axle. I know that these wheelset can be converted with end-caps adapter, but I didn’t feel like researching which model this was and find the correct end-cap adapter. I had read about something like this, so I figured I’d give it a try.It does work as advertised and easy to put on and it is a snug fit. Make sure it’s lightly greased before you install it. To take off, you just need a bit of a push from one side and it will slide out. I don’t know how well this will hold up. I’ll update the review later.

Used to convert my older 15 mm through axle MTB front wheel for use on my new gravel bike that has a 12 mm through axle fork. Note- it has to be a non “boost” front wheel. 12 mm through axle forks are 100 mm wide, So a this axle will not convert a boost (110mm wide) Front wheel with a 15 mm through axle down to 12 mm. For nonboost 15 mm hubs though it’s a winner. Really nice finish and really good tolerances. There is no slopp between this conversion piece and my hub. There is also no slop or looseness between the conversion peace in my 12 mm through axle. Surprisingly well-made and surprisingly low price. Highly recommended.

I wanted to use an Easton Haven MTB wheel for my gravel bike. This adapter solved one problem—fitting the hub to the 12 mm thruaxle. Unfortunatelym it was not plug-and-play, because the hub outer diameter was 21 mm, while the road fork dropout is 19 mm. I was able to cut down the hub on a lathe to make it fit. Easton used to sell a conversion kit, but they no longer support old model hubs. :(

Works as expected.

Good alternative to replacing end caps. Worked fine in DT Swiss 350 hub in a Niner fork.

Basically this is one of those items that just works and gets 5 stars or its a total screw up and gets 1. A little light lube and the adapter slid right into a new xt m8000 front hub. It was easy enough that I could push it through with the palm of my hand but tight enough that I needed a small bar to help push it back out, so snug. Skewer fit right in with no rattling so it'll keep the wheel right where it needs to be.

I bought this to adapt a 15mm thru axle wheel to 12mm to use on a new frame. Although this adapter does in fact down size the axle from 15mm to 12mm my wheel still did not fit in the new frame because of a couple recessed radii on the inside of the fork legs interfere with the OD of the hub axle. I ended up spending more money and getting new DT Swiss hub end caps, which should have a small OD as well as a smaller ID.

Product was exactly as described; a sleeve to allow a wheel with a 15mm thru axle bore to be used with a 12mm thru axle. Dimensionally correct in all ways for use on my road bike with standard 100mm spacing.