Monthly Archives: January 2018

Tire Evaluation – Vittoria Corsa Rate (open TLR)

The Vittoria Corsa Speed Open TLR was announced back in September 2015 together with another Vittoria Graphene tires (Corsa G2015, Rubino Pro G ). The majority of the newest Vittoria G tires are available since January 2016, but the Corsa Speed Open TLR was nowhere available. The cause of this is a last-minute redesign to fortify the bead area of the tire and enhance the sealing capacity when used at a tubeless setup. This is an overview of a shop purchased, redesigned Corsa Speed Open TLR.

The large observable change that’s been made appears like a thin coating of sticky gray rubber that’s put on the inside and out of the casing. The first press release and prototypes of the tire had the normal light-colored sidewalls that many cotton tires possess. I feel this grey coating can help to keep the atmosphere in and also can help to reseal the tire once it gets rancid. When doing the puncture tests, I have discovered the sealant sealed the scooter immediately after puncturing.

UPDATE: Vittoria has supplied some excess information about the upgraded version of this Corsa Speed Open TLR. The exact update was that the inclusion of an extra chafer (safety Nylon band) into the bead part of this tire. This extra chafer was inserted to generate the tire compatible with full-carbon tubeless and tubeless ready rims. They figured out that the carbon wheels have a much better finish than metal rims and might possibly reduce the tire; the extra nylon chafer solves this issue. They also verified the organic rubber based coating can help to attain perfect sealing properties.

Vittoria asserts the Corsa Speed Open TLR are the world’s quickest tire. Let us begin analyzing this scooter to find out whether that’s accurate! Bikespumps will reveal anything you want to know about bicycle pump reviews.

All rolling resistance evaluations are conducted on our rolling resistance test system. Read our The Evaluation page for a detailed explanation about how we examine tires.

Do not forget to have a look at the review pages to make it simpler to compare all of tires which were examined.

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My sample of this Corsa Speed TLR includes a weight of 225 g. The specified weight of this redesigned variant is 225 g too, so it is spot-on. Sadly, this scooter is only offered in a 23 mm wide edition, real width in my 17C rim with an air pressure of 100 psi / 6.9 pubs is 25 mm. I am happy that this scooter comes in larger than specified and can be just 1-2 mm bigger than most other 25C ranked tires.

As its name implies, the Corsa Speed was designed to be as quickly as you can. This implies there isn’t any anti-puncture belt and just a limited quantity of rubber on the tire. Having a total measured depth of 1.7 mm in the middle of the tire, this is the thinnest tire I have tested up to today. The standard Corsa G (read review) includes a entire depth of 2.4 mm and the Conti GP4000S II (read review) also comes in at 2.9 mm. You should not expect a good deal of mileage from the tire.

Since the Corsa Rate TLR is a tubeless-ready (TLR) tire, I have tested it with no inner tube and utilized 20 ml of sealant. This tire may also be used with an inner tube, but you need to add about ~ three to four watts to get a standard 100 g butyl tubing and 1.5 – 2.0 watts to get a latex tubing.

When setup tubeless, the Corsa Speed TLR is a remarkably quick tire! In an air pressure of 120 psi / 8.3 pubs, rolling resistance is merely 7.7 watts (CRR: 0.0023) each flight. At lower air pressures, rolling resistance is very, very low also. In comparison to the contest, the Continental GP TT (read review) is currently in 2nd place with a RR of 9.9 watts (using a std 100 g butyl tubing, should be ~8.4 volt using a latex tubing) The 2nd fastest tubeless-ready tire that I’ve examined is your Schwalbe Guru One Tubeless (read review) that comes in at 11.0 watts.

I believe that it’s safe to say the Vittoria Corsa Speed Open TLR is the quickest road bicycle tire on the planet at the present time of writing this review; I just can not think of another bicycle than could go below 8 watts in my test. I am pretty sure the speediest tubular tires using latex inner tubes will probably be slower also. I will find some quick tubulars examined soon to determine whether that’s accurate.

A entire tire depth of just 1.7 mm without a anti-puncture belt signifies puncture resistance is going to be reduced. From the tread puncture evaluation, the Rate TLR scores 8 points that’s probably still a fantastic score to get a tire that thin. The fantastic part is puncture resistance will probably be better if utilizing this drill in a tubeless setup with sealant (at least for smaller holes which may be sealed, even if you receive a significant cut you are out of luck).

From the sidewall puncture evaluation, the Speed scores 5 points exactly like the routine Corsa G . Pretty much all of cotton tires appear to come in at 4-5 points in this evaluation, so the casing is not any poorer compared to cotton tires.

It’s taken a very long time for this particular tire to get there, however, the last version of this Vittoria Corsa Speed Open TLR is actually the quickest street bicycle tire on the planet. When unpacking this particular tire and viewing the grey coating on the interior of the casing and sidewalls, I feared this could bring about a far higher rolling resistance. The reality is, rolling resistance of this Corsa Rate is unnaturally low. In addition to this, due to this new coat, puncture resistance and also the capacity to hold atmosphere when used at a tubeless setup will probably be far better.

In case you’ve got tubeless-ready wheels and need the fastest tires, then look no further and find a pair of them. If you do not have tubeless-ready wheels, then get some of them along with a pair of tubeless-ready wheels :-RRB-