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H Plus Son TB14's in a Colnago Extreme C

Posted: Mon Dec 16, 2019 10:02 pm
by Sjoerd
Hi all,

I'm thinking of having a set of wheels built with H Plus Son TB14 rims, but I have some concerns that they will not fit my Colnago Extreme C (with a Star-fork). I know the tolerances are tight. Is there anyone with any real life experience? I plan to ride the wheels with 23c tires.

I ride Continental 4 Seasons in the "off season" and Veloflex Masters when the weather permits is. Both run pretty true to their size on my Campagnolo Neutron Ultra wheels.

Thanks for your comments!

H Plus Son TB14's in a Colnago Extreme C

Posted: Mon Dec 16, 2019 10:02 pm
by Weenie

Re: H Plus Son TB14's in a Colnago Extreme C

Posted: Mon Dec 16, 2019 11:55 pm
by dudemanppl
Fit my Extreme Power fine with 25mm (26-27mm measured) tires.

Re: H Plus Son TB14's in a Colnago Extreme C

Posted: Tue Dec 17, 2019 12:02 am
by AJS914
My C59 easily fits 25mm tires (GP5000TL) on 25mm wide rims (19mm internal).

23mm tires should be more than fine on your Colnago. Weren't 23mm wide tubulars the standard when the frame was made?

The tire that people seem to have trouble with on older Colnagos is the 25mm GP4000 primarily because it's a very tall tire. The width is usually not the issue.

Re: H Plus Son TB14's in a Colnago Extreme C

Posted: Tue Dec 17, 2019 12:26 am
by alcatraz
If the country of origin is any indication of the real width then german tires (conti) run wide and italian (vittoria, maybe veloflex) run narrow.

What's the fork's inner width?

Re: H Plus Son TB14's in a Colnago Extreme C

Posted: Tue Dec 17, 2019 6:30 am
by Slammed
You should be fine. Wider rims are actually better because they flatten out the tire a bit. My friend's lightweights with 23mm Vittoria tubulars don't fit on his extreme c because they're too tall.

Re: H Plus Son TB14's in a Colnago Extreme C

Posted: Tue Dec 17, 2019 7:49 am
by petromyzon
Slammed wrote:
Tue Dec 17, 2019 6:30 am
You should be fine. Wider rims are actually better because they flatten out the tire a bit. My friend's lightweights with 23mm Vittoria tubulars don't fit on his extreme c because they're too tall.
This is not usually true unless the rim is too wide for the tyre to be safe on it. Wider rim = taller AND wider tyre, by a small degree.

Re: H Plus Son TB14's in a Colnago Extreme C

Posted: Tue Dec 17, 2019 8:09 pm
by Sjoerd
Thanks for the replies all!
alcatraz wrote:
Tue Dec 17, 2019 12:26 am
What's the fork's inner width?
I measure it at around 37 mm. It's not so much the width I am concerned with, but the height. Didn't Eupberg (hope I'm getting his name right) made a small modification to his C50 or EP-fork to accomodate 25 mm tires?

Re: H Plus Son TB14's in a Colnago Extreme C

Posted: Tue Dec 17, 2019 8:23 pm
by Sjoerd
eurperg is his user name!

Re: H Plus Son TB14's in a Colnago Extreme C

Posted: Wed Dec 18, 2019 3:27 am
by alcatraz
If you could shim the dropout you could maybe gain a mm or two of clearance.

Re: H Plus Son TB14's in a Colnago Extreme C

Posted: Thu Feb 27, 2020 12:05 pm
by DolanDriver
I am going to get a pair of 32 hole TB14s built up for my Colnago C40. The hubs will be Campagnolo C Record (2004, I think) and I will initially run them on Kenda Kontach 23mm tyres. I weigh 76KG so not too much of a heavyweight. The bike will be used in dry conditions only but will probably encounter the best and worst when it comes to road surfaces here in Ireland. I want to fit stainless steel spokes. I am looking for advice on what spokes to use with regard to building a solid wheel but at the same time using relatively light spokes. Discussing lightweight wheels and the TB14 is a bit of a contradicition in terms :D but when I assessed the rim-and-tyre weight of the TB14 versus the rim-and-tubular weight of a Nemesis or Crono F20, the difference was not going to be all that great. The weight saving using an Ambrosio rim was negated by using tubulars that weigh more than a folding tyre. Plus the convenience of the tyre-and-tube format just makes the decision a no-brainer.

Heart said 28 hole F20s, head said 32 hole TB14s!

What lightweight spokes can I safely use in the front wheel?
What spokes should I use on the rear drive-side?
Can I use a lighter spoke on the non-drive side in the rear?
Is it actually worth the hassle of sourcing different spokes and how much more expemsive is it likely to be if I mix spokes versus using 64 of the same model of spoke?

Thanks for any advice anyone can offer. :beerchug:

DolanDriver.

P.S. I test-fitted a pair of TB14s with 25mm Schwalbe Durranos fitted to my C-40 and clearance on the front fork and the rear brake bridge were no problem.

Re: H Plus Son TB14's in a Colnago Extreme C

Posted: Sun Mar 01, 2020 4:39 pm
by AC0
DolanDriver wrote: What lightweight spokes can I safely use in the front wheel?
What spokes should I use on the rear drive-side?
Can I use a lighter spoke on the non-drive side in the rear?
Is it actually worth the hassle of sourcing different spokes and how much more expemsive is it likely to be if I mix spokes versus using 64 of the same model of spoke?
I build early 2000 chorus hubs with TB-14 rims using Lasers on the front and NDS rear, Race on DS. With 32 spokes it should be no problem at your weight.

The only hassle of using different spokes front/rear and NDS/DS is buying a few more extra as spares if the required spoke lengths happen to match. All Laser is $10-$15 more than all Race.


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Re: H Plus Son TB14's in a Colnago Extreme C

Posted: Mon Mar 02, 2020 8:15 pm
by DolanDriver
Thanks. I'll say it to the guy in the shop to build the wheels up this way. Hopefully he doesn't tell me to clear off with this idea to lace them up with different spokes!

DolanDriver

Re: H Plus Son TB14's in a Colnago Extreme C

Posted: Tue Mar 03, 2020 2:29 am
by alcatraz
Those rims are really shallow. Better not try your luck with fewer than 32. The front being 28 or 32 could be debateable I think.

If the spoke lengths come out the same it would be tempting to just use the same spoke.

If the spoke count is low then the wheel merits a stronger spoke but seeing as you have 32 I'd consider the range of possible choices quite wide.

Re: H Plus Son TB14's in a Colnago Extreme C

Posted: Tue Mar 03, 2020 6:18 am
by AC0
alcatraz wrote:
Tue Mar 03, 2020 2:29 am
If the spoke lengths come out the same it would be tempting to just use the same spoke.
I used Laser 298mm front and NDS rear, Race 296mm DS rear. I think the chorus hub has the same geometry as record if they are the same vintage.

Re: H Plus Son TB14's in a Colnago Extreme C

Posted: Tue Mar 03, 2020 6:18 am
by Weenie