Can you convert 15mm QR Hubs to 9mm QR?

Jenny Taylia

Hi.

just picked up my aggressor XCR and it's got the new 15mm QR system on the front wheel / forks.

I've got some better forks I want to fit but they are std. QR.

Does anyone know of a method of converting the hubs?

they are Formula DC20/E37.

or any ideas as to how to get rounf this?

Fanx chums

supersonic

I dont think you can with these hubs. Some have adaptors, but don't think these are designed this way.

theuncharmed

The Formula website isn't helpful, but it does show the DC20 as being a 9mm QR.

You can't direct link to the hub, but go here and look under disc/downhill: http://www.formulahubs.com/

So it's possible. But sounds like GT ordered them as an OEM item.

xtreem

Best way is to email formula, but even if it's possible don't know where you'll find the right parts to do that.

Formula hubs don't even sell like aftermarket.
Or do they? :shock:

Mr_M

iirc Formula hubs (up to 2011 at least) are OEM only.

Yes, a hub with the same name /designation may be available in a 9mm QR fitting as well as 15mm - but I wouldn't put any money on being able to switch between one and the other.

I'd suggest that your best bet is to either sell both forks you currently have and buy a better QR15 unit (gets my vote) or buy a new fornt hub and get your front wheel rebuilt (probably cheaper)

Jenny Taylia

Mr_M wrote:

iirc or buy a new fornt hub and get your front wheel rebuilt (probably cheaper)

that's probably the way that can be definately done, though I'm seeing a retired engineer friend tomorrow, with a view to either Making a new 15mm Axle, with turned down 9mm threaded ends (Will depend on how the bearings are impacted by this method) or making up a different affair, using a 9mm axle and some spacers upto the 15mm.

Dunno what he will come up with but I'll report back any success.

ta for your input.

nicklouse

another option is just a 100mm long tube with an OD of 15mm and an ID of 9mm and then use a 9mm Qr as made by DT and others.

Jenny Taylia

nicklouse wrote:

another option is just a 100mm long tube with an OD of 15mm and an ID of 9mm and then use a 9mm Qr as made by DT and others.

Dear Nicklouse

Fanx for the idea. I had a session with my buddy today and came up with this:






It works a treat. Made from stainless, though a little heavier than alloy, it's got more strength on the 9mm shoulders than I think alloy would have (And he had the stainless bar lying around )

Jobs a good un, as they say.

supersonic

Nice work!

nicklouse

Perfk.

Jenny Taylia

awww shucks, you guys :oops: