Specialized Turbo Cotton Tires - Width Question..
Moderator: robbosmans
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?
2015 Wilier Zero.7 Rim - 6.37kg
2020 Trek Emonda SLR-7 Disc - 6.86kg
2023 Specialized SL7 - 7.18kg
2020 Trek Emonda SLR-7 Disc - 6.86kg
2023 Specialized SL7 - 7.18kg
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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.
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My 26mm Turbo Cotton on Alpinist CLX (21mm internal) measure 28mm at 65psi.
I ran 26c turbo cottons on LB AR56s (the rim I assume you are using) and they came out to almost exactly 29mm.
State Bicycle Co. Undefeated: viewtopic.php?f=10&t=171358
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.
State Bicycle Co. Undefeated: viewtopic.php?f=10&t=171358
I have the exact same setup.Mocs123 wrote: ↑Fri Sep 09, 2022 8:33 pmI'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?
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
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