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PostPosted: Fri Feb 08, 2013 3:14 pm 
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big hucker
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Joined: Wed Jan 16, 2013 7:32 pm
Posts: 3086
Location: Dallas, TX
Last summer I found a good deal on a used DT Swiss center-lock wheelset that came with center-lock to 6 bolt rotor adapters. The front hub was 15mm and I intended to use it on a bike with an older RS SID (9mm dropout). Here's how I ended up making it work...

I bought a 15mm thru axle to 5mm QR adapters from this guy: eBay My World - mtbtools

Here's the actual item link: Mountain Bike 15mm Thru Axle to Standard 5mm Quick Release Wheel Adapter | eBay

He also sells a 15mm to 9mm version: Mountain Bike 15mm Thru Axle to 9mm Quick Release Wheel Adapter | eBay

Here it is installed in the front hub. Sorry for the blurry photos.

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The center lock adapters came with the over-sized (15/20mm) lock-rings. Using a standard lock-ring (designed for 9mm) doesn't allow the necessary internal clearance to tighten it down.

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However, the over-sized lock-ring has a raised lip on the outside that was lightly rubbing the inside of the older SID fork I was using. This wasn't going as I had planned...

I needed a lock-ring which had the profile of a standard lock-ring while maintaining the ability to tighten it down on a 15mm hub.

I took a trip to the LBS and bought a steel Shimano standard lockring ($6.00) and drilled it out to match one of my spanners.

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In that last photo you can see where I started the hole a bit too close to the edge. Oops... I just rotated the lock-ring and gave it a 2nd shot.

I've been very happy with the setup and had no issues with it. Best of all, it has allowed me to use a really nice wheelset on my existing old fork. ;)

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PostPosted: Mon Jun 24, 2013 2:37 pm 
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lurkin' kitty

Joined: Mon Jun 24, 2013 2:27 pm
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Thanks for the notes and pictures. I did this using the original alloy lock ring with smaller holes. No troubles.


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PostPosted: Mon Jun 24, 2013 9:02 pm 
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big hucker
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Joined: Wed Jan 16, 2013 7:32 pm
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Location: Dallas, TX
You're welcome.

The basic steel lockring I have is a heavy dude. I imagine the alloy ring is quite a bit lighter. I just didn't have one on hand at the time.

Got any pics of the finished job? I love DIY bike porn. :lol:

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