Columbus Futura Calipers Fork clearance

Discuss light weight issues concerning road bikes & parts.
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Nixster
Posts: 83
Joined: Wed Oct 04, 2017 3:30 pm

by Nixster

Anyone have one of these and could please advise on clearance on Conti GP4k 28mm on a 17mm or bigger internal width rim?

Seems a bit of a lottery these days and would be good to know what I can run before buying. Columbus info says up to 28mm but that could mean 28mm on a 15mm rim...

Axle to crown is 368mm but not sure that's enough!

Thanks

N

by Weenie


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kdawg
Posts: 109
Joined: Wed Nov 20, 2013 9:10 pm

by kdawg

I have that fork. Here’s a couple of pictures if it helps. Tyres are Schwalbe 1 and measure 25.5. The rims are Open Pro - 20mm outside and I think they are 15 inside. So, some help but sorry I don’t have wider rims that will fit that bike.

F733CEE3-E5E6-4FEB-9B4D-C4C6ABA58C26.jpeg
96C8509E-9F91-4FB5-A021-33B64509DB7D.jpeg
I'm left handed, if that matters.

Nixster
Posts: 83
Joined: Wed Oct 04, 2017 3:30 pm

by Nixster

Hey thanks for replying! 👍
Looks a little tight in there but could use some additional info from someone who’s running wider rims.

Nixster
Posts: 83
Joined: Wed Oct 04, 2017 3:30 pm

by Nixster

Well I bought one so I can now answer my own question!

Yes, it fits with about 3mm all round between fork and tyre, which is pretty acceptable I think. Haven't tried for brake clearance but I don't anticipate any issues with the brakes I'm using currently.

Will try to get a photo uploaded as evidence.

biwa
Posts: 66
Joined: Fri Sep 21, 2018 8:39 pm

by biwa

Nixster wrote:
Fri Jun 22, 2018 2:43 pm
Well I bought one so I can now answer my own question!

Yes, it fits with about 3mm all round between fork and tyre, which is pretty acceptable I think. Haven't tried for brake clearance but I don't anticipate any issues with the brakes I'm using currently.

Will try to get a photo uploaded as evidence.
Hi, did the brakes clear too? Am looking at the same fork. How wide are your rims (internal/external)? Thanks.

by Weenie


Marin
Posts: 3303
Joined: Wed Jan 22, 2014 11:48 am
Location: Vienna Austria

by Marin

Gp4k 28s should be well over 30mm on 17c, right?

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