New Michelin Power Cup Tubeless: GP5K S TR competitor

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toxin
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by toxin

that is a crazy excess

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mrlobber
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by mrlobber

Talrand wrote:
Wed Apr 24, 2024 9:38 pm
My pair of TLR 25s just arrived and after a test fitting with tubes at 5 bar on a 18mm IW rim they measure just under 27mm. Did Michelin get their sizing in order or could there be so much variance between batches? Weights were 263g and 270g.
Woah, my 25 TLRs, bought a 2 months ago, were below 220g each.

However, the sizing looks to be about right (for Michelins), IIRC their "25mm" were supposed to be around 25mm WAM on a 17C rim.
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Talrand
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Joined: Mon Mar 18, 2024 10:28 am

by Talrand

I bought them based on these tests and measurements on BRR https://www.bicyclerollingresistance.co ... er-cup-tlr
According to BRR they weighed ~260 (270 claimed by Michelin) and more importantly they measured 28mm on a 17,8mm IW rim. My previous post was intended to point out they're LESS inaccurately labeled than they used to be :D

Spurdo
Posts: 35
Joined: Sat Jun 29, 2019 10:33 am

by Spurdo

30mm measures 29,6mm on i17 or i18 rims. Shame that I did not weight 'em before mounting, now I cannot be sure if mine are porky or not!

BigBoyND
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by BigBoyND

I wish they were more inaccurately labeled or offered in 32mm with tan walls :D
Last edited by BigBoyND on Thu May 09, 2024 4:38 am, edited 1 time in total.

Mindflash
Posts: 42
Joined: Sun Jun 30, 2019 11:59 am

by Mindflash

How many kilometers do you do with one pair? I currently have 5000km and both tires are looking and feeling fine.

cleanneon98
Posts: 493
Joined: Sun Aug 06, 2023 2:26 pm

by cleanneon98

Anyone using the 28mm on a wider internal rim? BRR says not recommended for wide rims, mine are 23mm internal. Also, any updates to the 73psi minimum pressure? Few things holding me back from trying these
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spdntrxi
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by spdntrxi

cleanneon98 wrote:
Thu May 09, 2024 6:55 pm
Anyone using the 28mm on a wider internal rim? BRR says not recommended for wide rims, mine are 23mm internal. Also, any updates to the 73psi minimum pressure? Few things holding me back from trying these
I used 28mm wheels on 25mm internal for like 5 years. No issues. I now know that generally that is not the preferred setup since things have changed. With 23mm IW the 28mm tires should be no concern. Pressure consult you rim and tire MFG as always since they can differ.
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cleanneon98
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Joined: Sun Aug 06, 2023 2:26 pm

by cleanneon98

I thought with theze it was because the center tread section is narrower so if you put the tire on too wide of a rim you start riding on the sidewall when cornering and can damage it. Pressure wise these say minimum 73psi which is more than I run now. It's not an issue of tire pressure limitations of the rim (it's hooked)
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toxin
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by toxin

Pretty much

spdntrxi
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by spdntrxi

I dont know where my reply went.. but I have powercups on multi wheelsets and do office park crits.. so far I have been ok, but I am aware of others having issues.
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Greeners
Posts: 28
Joined: Fri Apr 26, 2024 10:13 am

by Greeners

I am sorely tempted to place an order for some Michelin Power 2's.
I run C17 internal clincher rims (Zero Nites) & inner tubes. Am I best to buy the 25mm or thoughts on the 28'S?

I currently run 25mm Conti GP5000, they need replacing & was toying with moving up to 28's. I run 28's on a commuting/winter bike. My main concern is if the tyres are sized differently between the brands & I end up with tyres that barely fit within my frame clearance. Any feedback to help with my decision appreciated.

octav
Posts: 312
Joined: Thu Aug 27, 2009 12:40 pm
Location: Bucharest

by octav

I have just installed 28mm CLincher on 21 internal rims and they go at 31.3 mm. On 17 probabbly they will go around 29-30mm. You should go with some Vittoria 28mm or just get the Power Cup 25mm; they are almost 27mm on 17 internal rims( I have them on my Bora Ultra )

spdntrxi
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by spdntrxi

my 28mm. are 30.1 on 23 IW rims
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BigBoyND
Posts: 1546
Joined: Mon May 31, 2021 1:51 am
Location: Berlin, DE

by BigBoyND

Note that the 28mm tire isn't as "oversized" as the 25mm. It's only 1-1.5mm bigger.

Can't find the ETRTO table but it should be because the reference rim width is different for 25mm and 28mm.

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