Tire size for stratus rim?

Discuss light weight issues concerning road bikes & parts.
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Mahoney
Posts: 17
Joined: Wed Nov 03, 2004 4:50 am
Location: pittsburgh, PA

by Mahoney

I have a reynolds stratus (tubular) front wheel and the rim is 20.5 mm wide. This is a race only wheel for sprinting on smooth crit courses. I am debating what would be a better tire the tufu <160 road tire which is 20mm wide or the tufo <120 track tire which is 18 mm wide. My question is primarily an aero dynamics question for the 'experts' out there but would the 18 mm tire actually have worse aerodynamics on a 20.5mm rim than the 20 mm? Secondly, any thoughts on other issues with these tires?

Thanks
El Mahone

by Weenie


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zoey
Posts: 389
Joined: Wed Apr 28, 2004 12:01 am
Location: California
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by zoey

Mahoney wrote:I have a reynolds stratus (tubular) front wheel and the rim is 20.5 mm wide. This is a race only wheel for sprinting on smooth crit courses. I am debating what would be a better tire the tufu <160 road tire which is 20mm wide or the tufo <120 track tire which is 18 mm wide. My question is primarily an aero dynamics question for the 'experts' out there but would the 18 mm tire actually have worse aerodynamics on a 20.5mm rim than the 20 mm? Secondly, any thoughts on other issues with these tires?

Thanks


The 160g Tufo you can use on smooth roads the 120g is a track tire. A light tire will not do you any good if you puncture and are standing beside the road. :roll: If you are a racer pick durability and strength over light weight. Check out this thread on the rolling resistance of different tires. http://weightweenies.starbike.com/forum/viewtopic.php?t=2549&highlight=tufo
Cheers,
:lol:

"Ride lots." -- Eddy Merckx

Click Here to see my Scott CR1.

popawheelie
Posts: 1021
Joined: Thu Sep 26, 2002 3:42 pm
Location: in Colorado

by popawheelie

Have you been at the Zipp website? They talk about tires and rims having a smooth transition so they are slipperier. The 20 mm should cover the rim a bit more but you would have to call it.
If you haven't already, the zipp website does talk about this.

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