Tuesday, November 24, 2009

Does no one believe tubulars are faster?

Maybe not a guru - just keen on testing stuff. No-one else I know of, including manufacturers, have this data available in an unbiased way.

On Google wattage there has been a lot of talk about poor performing tires and the wattage increases required to power the wheel:

* Group member Stuart Lynne reported 25-30 watts more power required to average 40kmh with Zipp 404 front/rear with Tufo S33's compared with clinchers on Bontrager aero rims
and 1-2 minutes slower in 3 TT performances than expected.
[url="http://groups.google.com/group/wattage/browse_thread/thread/6fb5493f2cfe9b0d/664eaa16273767d1"]http://groups.google.com/group/wattage/bro...64eaa16273767d1[/url]
* Mr. E reported Tufos slower than clinchers
[url="http://groups.google.com/group/wattage/browse_thread/thread/85173088b1fbbde/8e2dddb7f5c22984"]http://groups.google.com/group/wattage/bro...e2dddb7f5c22984[/url]
* Gary Zyriek reported similar findings
[url="http://groups.google.com/group/wattage/browse_thread/thread/3864131868d2a891"]http://groups.google.com/group/wattage/bro...864131868d2a891[/url]
* Opie OsCO reported similar findings (same thread above).
* Gene Fowler reported 225 watts to roll at 25 MPH @ 85 cadence on rollers with Tufos, 145 watts with clinchers, same speed/cadence
[url="http://groups.google.com/group/wattage/browse_thread/thread/c4cdef5f3d1683ed/242f0b0526b099b5"]http://groups.google.com/group/wattage/bro...42f0b0526b099b5[/url]

Some further information: [url="http://www.velonews.com/tech/report/articles/12493.0.html"]http://www.velonews.com/tech/report/articles/12493.0.html[/url]

Feel free to use whatever you like, but if there are ways to make things faster with relatively little effort, I'll take those gains thanks.

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