On Mon, 9 Jun 2008 05:24:06 -0400, "Maple Tree" <
[email protected]> wrote:
>
>"Kinky Cowboy" <[email protected]> wrote in message
>news:[email protected]...
>> On Sun, 8 Jun 2008 18:24:06 -0400, "Maple Tree" <[email protected]> wrote:
>>
>>>Hello,
>>>
>>>What are the Pros & Cons for TUFO Road Tires?
>>>
>>>http://www.tufonorthamerica.com/tires/elite.php?seriesid=33
>>>
>>>Thanks
>>
>> Pro - light, ideal for weight weenie bikes which only have to perform
>> on the scales
>>
>> Con - rolling resistance, up to 10W more power loss in the tyres at
>> 25mph compared with the best clinchers
>
>Hi, can you show me the study that supports what you are stating?
>
http://www.biketechreview.com/tires/AFM_tire_crr.htm
e.g.
Tufo Elite Jet clincher 17.2W per tyre at 25mph
Bontrager Race X Lite Pro 12.0W per tyre 25mph
Note: 10W is more than the aero difference between a cheap Shimano
R560 wheel and a Zipp 808. In other words, if you fit Tufos to Zipp
808s, somebody can beat you with a $150 wheelset by choosing the right
tyres. Also, for any practical combination of slope and speed, the
Tufos would need to weigh less than zero to overcome their
deficiencies against any of the good ~200g racing clinchers from
Bontrager, Michelin, Vittoria, Veloflex
Other results from the same test series:
1: Even at 200psi, the Tufo can't match the Bontrager at 120psi. These
are smooth drum tests; I leave it to the usual argumentors to
determine how bad things would get on real roads if you had to run
200psi to be competitive
2: The rolling resistance of Tufos gets worse after being repaired
(whereas a replacement tube is as good as the old one)
On the other hand, if you're only concerned with a pissing contest
with other weight weenies, the Tufo Elite Jet is 20-40g lighter per
wheel than the nearest competitor, so it has that going for it
Kinky Cowboy*
*Batteries not included
May contain traces of nuts
Your milage may vary
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