Tubeless Tyres -"saying the same things about tubeless tyres over and over again" Hippy read the first f**king post

How thick is the GP5000 tread compared to GP4000?

2.8mm vs. 2.9mm
https://www.bicyclerollingresistance.com/road-bike-reviews/continental-grand-prix-5000-2018

You just need a new target :)

According to the BRR review GP5000s would save 7.7 watts over my Voyager Hypers. Not sure that passes a cost benefit analysis but I like that Continental are making a 32mm version.

I still haven't been able to recreate your wet weather grip issues with my Hypers, including 100km in the wet in Essex last weekend. Maybe I'm not leaning enough.

Hypers were great in wet!

Compass = shite.

Oh sorry I must have been getting mixed up. As you were.

Interesting that non-tubeless gp5000s are faster but I suspect in the real world the comfort of tubeless would give them the edge.

Ta.

"Continental also claims puncture resistance has increased by 20%. Unfortunately, our tests indicate that puncture resistance of the GP 5000 has gone down when compared to the GP 4000. In both the tread and sidewall puncture tests, the GP 5000 scores 1 point less"

What edge? The edge of comfort? If the Crr of the tubed version is lower it's probably due to thinner sidewalls or lack of inner TL skin neither of which are going in increase speed. Running lower pressures might be cushy but will negatively impact speed further. Given these are race tyres I'd expect people using them to be looking to performance rather than comfort, no?

Yes comfort, because my Voyager Hypers are more comfortable without tubes.

I'm not talking from a racing perspective because I don't! But I don't think most people who buy gp4000s use them for racing either so I expect that will also be true with the gp5000s.

Isn't increased comfort a benefit in racing too, especially for people like you who go a really long way with a sore gooch?

If the real world puncture protection is less good that's put me right off them though.

Most people who buy race bikes don't race them. People could save a lot of money using if they used proper commuter/training tyres rather than race tyres but then again people also put spoilers on their 1.2L Fiats and vote Leave so many are clearly idiots.

It depends what 'edge' you're talking about then. What you wrote made it sound like you were claiming they were faster even though they had worse Crr. I would be amazed if I noticed any change in 'comfort' but less work is less work so I'll take the lower Crr every day (except they're not as puncture resistant so lower Crr becomes useless if your time is then lost with more punctures)

it was me who had wet weather issues with hypers. Enough front wheel sliding to put me off using them tbh - a club mate also had similar issues.

I'm currently using g one speeds (30mm) but wondering if 32mm gp5000 might be a better option for long rides.

I'm in the same boat. 30mm G-one speeds are great, but would like something a little more puncture proof and a little wider without going to a gravel tyre, not much fits the bill except the new 32mm GP5000.

I wish they had a sidewall reflective option like the GP 4000 as this would be a great help for side visibility on overnight rides.

It seems the 32mm gp5000 isn't really wider than the 28mm gp4000. Someone had measured the 32mm to be 31,25mm on a 17,5mm rim. The old 28 was about 31mm wide too.

got a link to that?

reflectives would be lovely.

http://www.yksivaihde.net/site/foorumi/topic.php?id=85&page=168#post-886725

How's a GP5000 more puncture proof than a G-One speed? The speeds have been flawless to me

The old 28 was about 31mm wide too

The 25 is 30mm wide if you use a fat enough rim 🙂

https://www.vittoria.com/us/terreno-dry-cyclocross.html

Has anyone tried these? Would they work as a G One Speed alternative for all weather London commuting with gravel/ off road sections?

Tell me about these G-One Speeds, is the rubber as thin as on the Big Ones, so it wears out in a blink?

Quite a lot of tread on there compared to g-one speeds.

I really rate them as a dry weather cyclocross tyre, and they are a lot more grippy in damper conditions than any other file tread type tyre I've used. They are fine on the road, but I'm not sure they'll last that long for commuting, i.e. they are a race tyre first and foremost.

For the really geeky, there is an excellent article on the cxmagazine site where the brand manager explains the reasoning behind the tyre design;

https://www.cxmagazine.com/vittoria-mechanical-monday-terreno-dry-cylocross-gravel-tire-in-depth

Very interesting - Better braking!

Sorry, tape questions:

What’s the generic name for tubeless tape? I know it’s been posted here before.

Anyone know why using a rim rated at 25mm internal it would be recommended to seal with 27mm tape? Seems like an awkward size. Sorry if stupid.

This is end of days stuff. @Skülly doing tubeless and disc brakes.

I’m just waiting for four horsemen to appear.

I think he went tubeless last year on deep section lightbicycle carbon rims !