I love Veloflex Corsa 22 Folding tires + Latex tubes.

Discuss light weight issues concerning road bikes & parts.

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rruff
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by rruff

The difference between the Pave and the 320tpi Vittoria is .00317 vs .00250, which is a 27% difference in rolling resistance... pretty big. Used tires usually have lower resistance than new ones.

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STARNUT
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by STARNUT

Which pave? the 290 or 320?

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by Weenie


ProudDaddy
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by ProudDaddy

Correct me if I'm wrong, but I think the clincher change from Veloflex Black/Pave to Veloflex Corsa/Master also included a change in TPI from 300 to 320 (not exactly sure when that change was made). Maybe this accounts for the slight increase in weight from low 180s to 200 avg? It would be interesting to see Al test a new Veloflex Corsa/Master 22mm with latex tube and Vittoria Open Corsa Evo CX II 23mm back to back for comparison. The Pave in Al's listed results says ~500 used miles and the Vitt 320 says ~40 used miles, but I agree the Crr difference listed is big. Since it says Pave, I assume it is old tpi.

Regarding the start of the Veloflex company, here is an early description of the Veloflex Black that sheds some light:

"The Veloflex Black Tire has all the same famous qualities of the Veloflex Pave. But the folks at Veloflex thought they'd create a line of tires with all black sidewalls. The Veloflex Black Tire line is that creation. Out with tan sidewalls in with black. Designed and manufactured by former Vittoria employees, the Veloflex team formed as a result of the disappointing direction Vittoria took to make their tires off-shore. The Veloflex team felt they could make tires lighter and faster. And so they did. The Veloflex Black Tire uses the finest materials possible, with the Kevlar belt and bead this tires hold the rim even at the feather light weight of 180grams. Combined with their 300tpi cotton casing there isn’t a clincher on the market that gets closer to a tubular feel. If you want the fastest, lightest racing tire or you want to ride on the best performance clinchers on the market you're seeking the Veloflex Back Tire."

ProudDaddy
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by ProudDaddy

I just checked the Veloflex website and the published weight of the Corsa/Master 22mm tire is now 190g +/-10%. The 20mm is listed at 180g. I am pretty sure that last week they were both listed at 180g.

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LouisN
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by LouisN

rruff wrote:The difference between the Pave and the 320tpi Vittoria is .00317 vs .00250, which is a 27% difference in rolling resistance... pretty big. Used tires usually have lower resistance than new ones.



I wonder what these numbers mean "in real life"...

From what I understand, 100% more resistance, would mean "twice" more resistance...(Ex: Bontrager race X lite Pro VS Bontrager Sport, just to remain in the same brand...) ? What does it translate to, for example, in a X minutes TT (with controled parameters) ?
-Any data on this ?
-And I noticed 7 out of 10 of the "top ten lowest numbers" tires are new tires...

Louis :)

ProudDaddy wrote:I just checked the Veloflex website and the published weight of the Corsa/Master 22mm tire is now 190g +/-10%. The 20mm is listed at 180g. I am pretty sure that last week they were both listed at 180g.


Proof they read WW's website :lol:

gospastic
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by gospastic

wow, 10% is a lot! that means the tire could weigh anywhere from 170 to 210g. Kinda ridiculous.

rruff
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by rruff

STARNUT wrote:Which pave? the 290 or 320?


Hard to tell. Al doesn't list dates or model details, but something might be learned by searching the forums on BTR.

rruff
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by rruff

LouisN wrote:I wonder what these numbers mean "in real life"...


I don't want to do your work for you, but it's more than a little. There are plenty of calculators available (including one I made in excel) that will give you the difference for any scenario you wish to look at.

rruff
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by rruff

gospastic wrote:wow, 10% is a lot! that means the tire could weigh anywhere from 170 to 210g. Kinda ridiculous.


Does seem like a huge and unnecessary variance, but I figure that higher weights usually mean more tread and greater life, so it isn't all bad.

If you really want light, get the Record or a Conti SS.

KWalker
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by KWalker

Any difference in ride quality between the Corsas with latex tubes and the masters/paves with latex tubes? Its been those or the Vittorias, both with the same tubes. I have the Vittoria Paves and had the Open Corses earlier this year and honestly the only reason to go with the Masters/Paves is the tan sidewall, which I think looks nice.
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rruff
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by rruff

BTW, if anyone would like to get their tires tested, contact Al over at BTR. I think he'd like to get some Veloflex tires because he hasn't tested them lately.

parajba
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by parajba

I'm going to replace my Conti 4000s with some generic specialised inner tubes with Veloflex Corsa 22 (Black) and Michelin Aircomp A1 Latex inner tubes. What size of the tube do you recommened? they come in two sizes:

- 18-20mm
- 22-23mm

Good sense would suggest to get the 22-23mm as the Corsa is 22mm?

Thanks!
Manny

ProudDaddy
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by ProudDaddy

The 18-20 are lighter and work just fine in 23mm tires, ime. I would use those in the 22mm veloflex over the bigger tubes.

parajba
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by parajba

ProudDaddy wrote:The 18-20 are lighter and work just fine in 23mm tires, ime. I would use those in the 22mm veloflex over the bigger tubes.


Thanks for the kind reply! I was thinking the same but I've never tried, will buy the 18-20mm for the 22mm Veloflex Corsa tyres.

by Weenie


fdegrove
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by fdegrove

Hi,

ProudDaddy wrote:The 18-20 are lighter and work just fine in 23mm tires, ime. I would use those in the 22mm veloflex over the bigger tubes.


Unless you really need high pressure in those tyres fro some reason I'd use the 18-20mm version as wsell.
Michelin latex inners aren't the greatest though, they tend to be less forgiving of "overstretched" states.
A personal favourite of mine, even though I mostly ride tubulars, is a natural latex one made by Vredestein.
Light and comfy. 8)

Ciao, ;)
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