Tufo Comtura Prima

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BigBoyND
Posts: 1632
Joined: Mon May 31, 2021 1:51 am

by BigBoyND

Tufo is on a roll. The results are really strange though. Heavier but worse puncture protection and better rolling resistance vs the Prima?

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TobinHatesYou
Posts: 13253
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

Seems like a Raceday with an additional casing ply. So significantly less actual tread than the Comtura Prima.

jlok
Posts: 2552
Joined: Tue Jun 30, 2015 3:30 am

by jlok

Unmounted Casing Width 77 mm

Probably the widest tire with 28c designation and contributes to low rolling resistance?
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TobinHatesYou
Posts: 13253
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

jlok wrote:
Sun Jul 28, 2024 6:49 am
Unmounted Casing Width 77 mm

Probably the widest tire with 28c designation and contributes to low rolling resistance?

I consider 1mm margin of error for his casing measurements. The 28mm Comtura Prima and 29mm SES Race Day both measure 76mm. They also measure 29.8mm and 29.9mm WAM, and .1mm is certainly margin of error for measured width.

cleanneon98
Posts: 636
Joined: Sun Aug 06, 2023 2:26 pm

by cleanneon98

Good results for that new Tufo, reading the test I thought "these look very similar to my TLR RS but wider" and sure enough BRR calls out the comparison in their conclusion. Good option for someone after a wider 28mm, hopefully they have a better wear life than the Prima which I recall was said to wear really quickly
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Jaisen
Posts: 834
Joined: Fri Oct 07, 2022 2:01 am

by Jaisen

Very impressive results. I've been waiting for someone in Canada to stock the Enve Race Days in 29 without a ridiculous markup, but now I might just have to consider this Endurance 7TR tire. The 90€ shipping directly from Tufo to Canada is a little too steep, so more waiting on local retailers.

BigBoyND
Posts: 1632
Joined: Mon May 31, 2021 1:51 am

by BigBoyND

jlok wrote:
Sun Jul 28, 2024 6:49 am
Unmounted Casing Width 77 mm

Probably the widest tire with 28c designation and contributes to low rolling resistance?
No. BRR uses WAM (not labeled width) for setting the pressure.

BigBoyND
Posts: 1632
Joined: Mon May 31, 2021 1:51 am

by BigBoyND

cleanneon98 wrote:
Sun Jul 28, 2024 12:42 pm
Good results for that new Tufo, reading the test I thought "these look very similar to my TLR RS but wider" and sure enough BRR calls out the comparison in their conclusion. Good option for someone after a wider 28mm, hopefully they have a better wear life than the Prima which I recall was said to wear really quickly
Wear reports seem mixed. I suspect the people who didn't get a lot out of them use 1995 tire pressures and the narrow contact patch wears quickly.

Some of us get a lot of life out of them. I'm 85kg and mine still have the mold line in the center of the tread after 1500km.

TobinHatesYou
Posts: 13253
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

At 2550km my rear-mounted 29mm Race Days still looked almost new. I’d be happy to get 4000km out of what is essentially a TT tire. My 28mm GP5K S TR did last an incredible 7700km, so there is that.

eins4eins
Posts: 867
Joined: Wed Sep 28, 2016 11:49 am

by eins4eins

BigBoyND wrote:
Mon Jul 29, 2024 6:31 am
cleanneon98 wrote:
Sun Jul 28, 2024 12:42 pm
Good results for that new Tufo, reading the test I thought "these look very similar to my TLR RS but wider" and sure enough BRR calls out the comparison in their conclusion. Good option for someone after a wider 28mm, hopefully they have a better wear life than the Prima which I recall was said to wear really quickly
Wear reports seem mixed. I suspect the people who didn't get a lot out of them use 1995 tire pressures and the narrow contact patch wears quickly.

Some of us get a lot of life out of them. I'm 85kg and mine still have the mold line in the center of the tread after 1500km.
I run fairly low pressures and the Prima still wore out super fast. Tire life depends mostly on the type and style of riding. Racing and fast descending increases wear significantly.

TobinHatesYou
Posts: 13253
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

eins4eins wrote:
Mon Jul 29, 2024 7:15 am

I run fairly low pressures and the Prima still wore out super fast. Tire life depends mostly on the type and style of riding. Racing and fast descending increases wear significantly.

This has not been my experience. In mass-start racing my speed-to-power ratio is greatly increased. In racing my goal is to finish in the shortest time (fastest pace.) Braking is not something I do much during this time.

Climbing wears your rear tire out more than descending. Part of this is because we are bad at modulating our power output and causing micro-accelerations against gravity, which itself is a force causing constant negative acceleration. In contrast braking on a descent is effectively a smooth application of power.

This is why generally speaking your rear tire wears out 3x faster than a front tire…it’s the one being driven.

MarcFaFo
Posts: 85
Joined: Fri Sep 14, 2018 4:58 pm

by MarcFaFo

TobinHatesYou wrote:
Mon Jul 29, 2024 7:57 am
eins4eins wrote:
Mon Jul 29, 2024 7:15 am

I run fairly low pressures and the Prima still wore out super fast. Tire life depends mostly on the type and style of riding. Racing and fast descending increases wear significantly.

This has not been my experience. In mass-start racing my speed-to-power ratio is greatly increased. In racing my goal is to finish in the shortest time (fastest pace.) Braking is not something I do much during this time.

Climbing wears your rear tire out more than descending. Part of this is because we are bad at modulating our power output and causing micro-accelerations against gravity, which itself is a force causing constant negative acceleration. In contrast braking on a descent is effectively a smooth application of power.

This is why generally speaking your rear tire wears out 3x faster than a front tire…it’s the one being driven.
I have been riding them in Holland (flat as a pancake) racing and riding is wet conditions and France (Pyrenees) both the back tyre lasted 950 - 1250 km's. The front remained remarkebly good. Oh, 25mm WAM 28,3 and a presure of (after 1995) 5.6 - 5.8 bar.

tomtom
Posts: 409
Joined: Sun Oct 31, 2010 9:01 am

by tomtom

First flat after 1200k :-(. Fortunately effeto was very quick to repair (almost no punctureloss). Mounting them was quite easy (on carbonspoke Farsportwheels, 28mm wide) but the weight was a lighter higher then expected; 240-250 gram on a Parktool scale. They feel a little slower than my 5000TR's but also a little more grip. Everybody is ridinh @quite high pressure. If you look a the manufacturers/app recommendations it should be (much) lower. I'm riding somewhere between 3.5-4 bar front and 4.5-5 bar rear (+/- 80kg). Is there a reason you guys seem to run much higher pressures?
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Talrand
Posts: 27
Joined: Mon Mar 18, 2024 10:28 am

by Talrand

tomtom wrote:
Tue Aug 06, 2024 2:03 pm
First flat after 1200k :-(. Fortunately effeto was very quick to repair (almost no punctureloss). Mounting them was quite easy (on carbonspoke Farsportwheels, 28mm wide) but the weight was a lighter higher then expected; 240-250 gram on a Parktool scale. They feel a little slower than my 5000TR's but also a little more grip. Everybody is ridinh @quite high pressure. If you look a the manufacturers/app recommendations it should be (much) lower. I'm riding somewhere between 3.5-4 bar front and 4.5-5 bar rear (+/- 80kg). Is there a reason you guys seem to run much higher pressures?
What app recommends you 1 bar difference between front and rear? 4,5-5 bar seems pretty standard, 3,5 is lower than any recomendation I've ever seen (for 28s)

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Berk
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Location: Slovenia

by Berk

My two cents, I used them for more than 3000km, so not sure how some manage to wear them so fast. I replaced them only because of the damages on the photo (the small cuts etc.)

Image

Image

I used 4,5 bar all the time and the shortest ride from my home has almost 600m elevation (I live on top of a hill) and at my 186cm I am also not a lightweight rider, around 80kg all the time. As you can see on both photos it is still good (besides the damages) and please mention that on both photos it is the rear wheel. I only had one puncture and used them as a tubeless setup.

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