Specialized Turbo Cotton Tires - Width Question..

[Mocs123]

I've been an avid Continental GP5000 fan but am thinking about trying a set of Turbo Cottons (with latex tubes). I'm trying to decide which size to buy. My wheels are 23mm internal and 30mm external, and I've been using 25c tires - that end up measuring 29mm on the wider rims. Does anyone have real world width measurements for Turbo Cotton's on a 23mm rim?

[RyanH]

Not exactly what you're asking but if I recall correctly 25mm TC on 21mm internal measured out to just under 27mm while 28mm measured out to 30mm on the same rim.

[Mocs123]

Turbo Cotton's are sold in 24c, 26c, and 28c (as Hell of the North) I beleive. When you say "25mm TC on 21mm internal" do you mean 26c?

[frostorama]

My 26mm Turbo Cotton on Alpinist CLX (21mm internal) measure 28mm at 65psi.

[Mocs123]

Thanks. It sounds like the 26c might be the tire I'm looking for if I want the tire to be 29mm on my 23mm inner rims.

[timmerrr]

Thanks. It sounds like the 26c might be the tire I'm looking for if I want the tire to be 29mm on my 23mm inner rims.

I ran 26c turbo cottons on LB AR56s (the rim I assume you are using) and they came out to almost exactly 29mm.

[Mocs123]

That is correct, that is the rim I've got. Any feedback on the combo? And thank you for your input!

[timmerrr]

Great combo, raced and won quite a few crits on it. I have moved on to Veloflex tires as they are cheaper but have the same great ride quality as the turbo cottons.

[spib]

TC + latex is easily the best tire setup I've tried as well. I recently tried Vittoria corsa + latex and hands down prefer the cottons.

[andy4g63]

I've been an avid Continental GP5000 fan but am thinking about trying a set of Turbo Cottons (with latex tubes). I'm trying to decide which size to buy. My wheels are 23mm internal and 30mm external, and I've been using 25c tires - that end up measuring 29mm on the wider rims. Does anyone have real world width measurements for Turbo Cotton's on a 23mm rim?

I have the exact same setup.
Running LB's AR56 which are 23/30 and700x28 Turbo cottons...and latex tubes.

Being that the turbo cottons are running only a 1mm above their stayed width, when new, 28mm on a 23/30 rims would go around 29.5mm, almost perfect, considering the 105 rule.

I also recall that my LB rims were about 30.5 mm wide.

So even now after months and months of use, the rims are wider, than tires.

And I run like 48-50 psi-F and 57-60 psi-R and I weigh 72kg..

Unless you are going for absolute speed, the 28's are the best