New Continental 5000s tires - the CLINCHER (not TL) thread

Discuss light weight issues concerning road bikes & parts.
Methodical
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Joined: Sat Mar 03, 2018 11:40 pm

by Methodical

slake21 wrote:
Mon Feb 03, 2020 4:41 pm
anyone here using a 19mm internal rim?
my 25mm 4000s were close to 28mm which made taking the rear wheel out very difficult
that's why I ordered 23mm 5000 hoping it will actually be 25mm (for my 24mm external rims)
but now I'm no so sure about my choice :?
Why not deflate the tire before removal?
"Never be afraid to try something new. Remember, amateurs built the Ark, professionals built the Titanic"

'20 Emonda SLR (Rage Red) - 6.27kg (6.04kg;no pedals)
'12 Madone (Black) - 6.96kg (6.73kg;no pedals)
Fujee Espree (Maroon) - 11.02kg

tomycs
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Joined: Tue Mar 15, 2016 1:06 pm

by tomycs

I didn't appreciate the wet grip of the 5K clincher (5KTL (tbh at lower pressures) was a lot more reassuring). I didn't expect the sidewall to be so fragile though. Cut on a generic sharp rock that can be found in the thousands on UK roads.
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by Weenie


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pdlpsher1
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by pdlpsher1

I’m riding 28mm and 32mm, and find it to be very durable as the wider tread protects the sidewall. Your rim seems to be wider than the tire. I would suggest sizing up.


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tomycs
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Joined: Tue Mar 15, 2016 1:06 pm

by tomycs

it's not: 25mm 5K clincher on the old trusted 23mm wide(17mm internal) 38mm Farsports. luckily it happened at low speed so no damage to the rim.

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pdlpsher1
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by pdlpsher1

The GP5K 25 is close in size to the GP4K 23. Many people bought GP5K 25s and ran lower pressures, and ran into sidewall issues. My GP5K 28 comes in at the same width as the GP4K 25 on the same wheels. If you insist on running GP5K 25s you must use higher pressures. If you have rocks on the roads you should be using at a minimum 28s. And more ideally the 32s.

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tomycs
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Joined: Tue Mar 15, 2016 1:06 pm

by tomycs

I will say this, if people want to forensically analyse... I am accepting a new GP5K clincher in exchange of the old one :-) Also, I'm sure there's a big element of bad luck involved but over 2 generations of Corsas, 2 gen of Rubinos, GP4K, Pirelli Pzero, 2 gen of Schwalbe 1 etc for 100k of km and the only other sidewall cut I can remember are the old Hutchinson Atom Comps.

petromyzon
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Joined: Mon Apr 05, 2010 4:14 pm

by petromyzon

tomycs wrote:
Sat May 16, 2020 4:52 pm
I will say this, if people want to forensically analyse... I am accepting a new GP5K clincher in exchange of the old one :-) Also, I'm sure there's a big element of bad luck involved but over 2 generations of Corsas, 2 gen of Rubinos, GP4K, Pirelli Pzero, 2 gen of Schwalbe 1 etc for 100k of km and the only other sidewall cut I can remember are the old Hutchinson Atom Comps.
Science right there! Quick Mr Manufacturer I got a puncture on my bike after I rode it over something sharp (not sure quite which rock), send me a new tyre ASAP :roll:
I've only had a couple of sidewall cuts in many years of happy riding. I didn't blame that specific tyre and I didn't ask for a new one when it happened.

tomycs
Posts: 82
Joined: Tue Mar 15, 2016 1:06 pm

by tomycs

petromyzon wrote:
Sat May 16, 2020 4:59 pm
tomycs wrote:
Sat May 16, 2020 4:52 pm
I will say this, if people want to forensically analyse... I am accepting a new GP5K clincher in exchange of the old one :-) Also, I'm sure there's a big element of bad luck involved but over 2 generations of Corsas, 2 gen of Rubinos, GP4K, Pirelli Pzero, 2 gen of Schwalbe 1 etc for 100k of km and the only other sidewall cut I can remember are the old Hutchinson Atom Comps.
Science right there! Quick Mr Manufacturer I got a puncture on my bike after I rode it over something sharp (not sure quite which rock), send me a new tyre ASAP :roll:
I've only had a couple of sidewall cuts in many years of happy riding. I didn't blame that specific tyre and I didn't ask for a new one when it happened.
:roll: :roll: :roll:

FactoryMatt
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by FactoryMatt

pdlpsher1 wrote:
Sat May 16, 2020 4:42 pm
The GP5K 25 is close in size to the GP4K 23. Many people bought GP5K 25s and ran lower pressures, and ran into sidewall issues. My GP5K 28 comes in at the same width as the GP4K 25 on the same wheels. If you insist on running GP5K 25s you must use higher pressures. If you have rocks on the roads you should be using at a minimum 28s. And more ideally the 32s.

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I cracked the hook of a carbon rim hitting a decent sized rock at 30mph running 25 CLs at 80psi. The tire itself is good as new. Def wish i had the 32s on tho..

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Shpox
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by Shpox

Hello all.

I ran both 25 and 28mm Clincher versions on my 17mm internal width Reynolds Assault SLG rims with 62mm of depth.

I am currently riding the 28's for comfort but may switch to 25mm front.
I have always struggled with fitting tyres to the hookless rim as it is tubeless compatible. The 28mm I could get on by hand. 25mm took a bit more thumb. GP4000 II were a nightmare.

I have enough tyre clearance for the 28's and they feel supple at 70-80 psi. If I am climbing, I will prefer a higher PSI.

Overall, pretty happy. I will be potentially moving to the LB AR56 rim in a few weeks so it'll be interesting to see how it differs. The 25 and 28mm look pretty close on the bike but the 28's definetly feel more supple.

Both are a huge jump from the 4000's. The 4000's seem very harsh to me in comparison and I had sidewall issues. Mine didn't last long where the 5000 are holding up way better.

FactoryMatt
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by FactoryMatt

How many miles do you have on them running tubeless on hookless rims?

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Shpox
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by Shpox

FactoryMatt wrote:
Sun May 17, 2020 5:17 pm
How many miles do you have on them running tubeless on hookless rims?
I am still running them on Contintental Race tubes. No flats. I'm not a huge fan of tubeless/goop personally. I have about 2000 km on the 28's. I had 1500 km on the 25's before I made the change.

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pdlpsher1
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by pdlpsher1

GP5K non-TL 28s plus Vittoria latex is sublime. This combo is as fast as the GP5K TL.

xcnick
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Joined: Fri Jan 21, 2011 5:27 pm

by xcnick

I’m fitting some 5000 to my 25mm wide fulcrum (external) and they come up tiny compared to the 4000 I’m replacing.

4000 measure 26mm wide and 26mm high

5000 measure 24mm wide and 22.5mm high!

I’m so annoyed I don’t know whether to return them!

ParisCarbon
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Location: Winnipeg Canada

by ParisCarbon

Ive been running the GP5000s for the last few months...
I have a set of 23s mounted on my Bora Ultras with Challenge Latex tubes..
I have a set of 25s mounted on my Roval CLX 50s with above tubes...
I like the 23s, but don't really like the 25s.. gonna sound weird, but the 25s "feel" slower than the old 24mm SWorks black turbos I had installed (with latex)
I still say my Turbo Cottons are the fastest for me.. Im running 24s on my Bora WTOs, and I have the 26mm mounted on my CLX64s on my Venge.. I think when they are worn, I'll run 24 all round.. the GP5000s have been wearing nice for sure, and no flats or cuts and our roads look like a practice Bomb strip for the air force...

by Weenie


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