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mpulsiv
- Posts: 1385
- Joined: Mon Mar 24, 2014 9:17 pm
by mpulsiv on Sat Sep 02, 2017 6:43 am
Hexsense wrote:Latex can stretch 7.5 times.
Butyl can stretch 1.5 times.
So, no. unless your tube is very undersized to save weight from the start, i'll be more than fine.
While, latex can stretch up to 7.5 X, can 19-24mm tube be used on a that measure 30-32mm wide (e.g. 28mm Conti 4000S)
https://m.probikekit.com/bicycle-inner- ... 21072.html
Racing is a three-dimensional high-speed chess game, involving hundreds of pieces on the board.
CBA = Chronic Bike Addiction
OCD = Obsessive Cycling Disorder
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Delorre
- Posts: 967
- Joined: Sat May 24, 2014 12:09 pm
by Delorre on Sat Sep 02, 2017 6:55 am
mpulsiv wrote:Hexsense wrote:Latex can stretch 7.5 times.
Butyl can stretch 1.5 times.
So, no. unless your tube is very undersized to save weight from the start, i'll be more than fine.
While, latex can stretch up to 7.5 X, can 19-24mm tube be used on a that measure 30-32mm wide (e.g. 28mm Conti 4000S)
https://m.probikekit.com/bicycle-inner- ... 21072.html
I use normal Michelin Ultralite innertyres in my 28mm gp4000s, completely trouble free, although I have to admit, my 28mm's have only seen a couple of 100 miles
But it was on gravel and cobbles
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Hexsense
- Posts: 3279
- Joined: Wed Dec 30, 2015 12:41 am
- Location: USA
by Hexsense on Mon Sep 04, 2017 7:45 pm
mpulsiv wrote:Hexsense wrote:Latex can stretch 7.5 times.
Butyl can stretch 1.5 times.
So, no. unless your tube is very undersized to save weight from the start, i'll be more than fine.
While, latex can stretch up to 7.5 X, can 19-24mm tube be used on a that measure 30-32mm wide (e.g. 28mm Conti 4000S)
https://m.probikekit.com/bicycle-inner- ... 21072.html
Yes, but i'll be thin.
How exactly thin it is to be problematic, i don't know. So it's just safer to use bigger 25-28c version for the tire that big.
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ClydesdaleChris
- Posts: 129
- Joined: Tue May 23, 2017 8:53 am
by ClydesdaleChris on Sun Nov 26, 2017 11:49 pm
Continental GP4000Sii 28mm, measures 31mm (!) On 17c rim. However they are 29mm high, which is a problem in most frames, even some disc and new-generation direct mount frames.
Ive found that it just touches inside of caliper when standing up and pedalling.
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Eddy Merckx Roubaix70 custom build
Trek Émonda 2018 SLR
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emotive
- Posts: 613
- Joined: Tue Nov 01, 2016 10:40 am
- Location: Melbourne, Australia
by emotive on Fri Apr 27, 2018 1:12 am
Beaver wrote: ↑Mon Apr 16, 2018 1:41 pm
Does anyone have the real width of a GP 4000SII 28mm on the 25C Enve 4.5 AR?
They should be quite wider than the 31mm wide rim?
34mm measured, according to Darren Baum of Baum Cycles, though I can't find a link now.
Note Enve recommend you only use 'tubeless ready' tyres, so they seat well on the hookless rim on the 4.5AR, so Darren has switched to Schwalbe Pro1 28mm which measure 31.5mm wide. You can still use tubes in the tubeless ready tyres if you wish.
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nachetetm
- Posts: 140
- Joined: Fri Aug 18, 2017 8:54 pm
by nachetetm on Sun Jun 17, 2018 12:24 am
Here are my measurements:
Challege Paris-Roubaix open tubular (27c claimed)
On 17c Fulcrum R7-> 29.8
On 19c Kinlin XR22T->30.5
Challenge Elite open tubular (25c claimed)
On 19c Kinlin XR22T-> 27.3
Panaracer Gravelking (32c claimed)
On 15c rims-> 29.6
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Hexsense
- Posts: 3279
- Joined: Wed Dec 30, 2015 12:41 am
- Location: USA
by Hexsense on Tue Jul 10, 2018 7:16 pm
23mm internal width is here
Light-bicycle 56mm deep, 30mm external width and 23mm internal width.
@70psi
Vittoria Corsa G+ 25c -> 30.45mm
Pirelli Pzero Velo 25c -> 29.06mm
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Hexsense
- Posts: 3279
- Joined: Wed Dec 30, 2015 12:41 am
- Location: USA
by Hexsense on Tue Dec 04, 2018 4:04 am
Resurrect old thread with more data:
Light-bicycle 56mm deep, 30mm external width and 23mm internal width.
@70psi
Vittoria Corsa G+ 25c 30.45mm (stretched)
Continental GP Force 3 25c 30.1mm (stretched) -> near identical to gp 4000sII 25c in size
Continental GP5000 28c 30.15mm (new) -> the GP5000 28c size only a tiny bit wider than GP4000sII 25c.
Pirelli Pzero Velo 25c 29.06mm (new)
Pirelli Pzero Velo 25c 29.8mm (stretched)
Pirelli Pzero Velo 28c 30.89mm (new)
Pirelli Pzero Velo 28c 31.?? mm (stretched) -> lost the measurement.
Last edited by
Hexsense on Wed Feb 20, 2019 6:06 pm, edited 1 time in total.
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jlok
- Posts: 2407
- Joined: Tue Jun 30, 2015 3:30 am
by jlok on Fri Dec 07, 2018 8:44 am
Enve 4.5 AR Disc, 25mm hookless internal width
Hutchinson Fusion 5 Performance Tubeless Ready 11Storm, 28c
31.9mm measured width at 60psi
Rikulau V9 DB Custom < BMC TM02 < Litespeed T1sl Disc < Giant Propel Advanced SL Disc 1 < Propel Adv < TCR Adv SL Disc < KTM Revelator Sky < CAAD 12 Disc < Domane S Disc < Alize < CAAD 10
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NickJHP
- Posts: 462
- Joined: Wed Feb 14, 2018 2:22 am
- Location: Canberra, Australia
by NickJHP on Mon Dec 10, 2018 7:19 am
Compass Bon Jon Pass extralight on Light Bicycle RRU25C02 rims: 36.5mm wide (stretched, setup tubeless).
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emotive
- Posts: 613
- Joined: Tue Nov 01, 2016 10:40 am
- Location: Melbourne, Australia
by emotive on Mon Dec 17, 2018 7:13 am
Specialized S-Works Turbo 28 on Light Bicycle RR36C02 (22C hookless inner) 30.4mm on the front @50psi, 31.0mm on the rear @60psi, after 1500km. Tubes.
Compass Bon Jon Pass (35mm) Extralite on Light Bicycle RM29C06 (22C hookless inner) 37.6mm wide @40psi after 1500km, 38mm after 3000km, setup tubeless.
Compass Snoqualmie Pass (44mm) Extralite on Light Bicycle RM29C06 (22C hookless inner) 43.3mm wide @30psi, when new, setup tubeless. After 700km these haven't stretched at all.
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morganb
- Posts: 732
- Joined: Wed Mar 15, 2017 5:30 pm
by morganb on Mon Dec 17, 2018 7:54 pm
Compass Babyshoe (standard casing) 650Bx42mm measure 44.0mm on Roval Traverse SL 30mm internal rims, so most likely true to size or slightly undersized on a more conventional width rim. This was taken immediately after tubeless set up, but they had lived on another set of rims for a year so I imagine they won't stretch any more.
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biwa
- Posts: 411
- Joined: Fri Sep 21, 2018 8:39 pm
by biwa on Thu Jan 03, 2019 5:59 am
Anyone with Light Bicycle 17.9mm internal/25mm external widths rims? Would like to know the mounted tire width for 25mm tires (e.g. GP 4000S II or Schwalbe One V-Guard). Thx!