View Full Version : Rolling resistance of 20" tires
james_swift
05-10-06, 03:27 PM
Here is a nifty table of rolling resistance calculated for several popular 20" tires.
http://www.greenspeed.com.au/tt20.htm
spambait11
05-10-06, 05:53 PM
...with the caveat that Greenspeed has a stake in the Scorchers.
brakemeister
05-10-06, 08:43 PM
damm the Schwalbe Racer is not in there, nor the Schwalbe Stelvio.....
also .... different tubes can make a HUGE difference
but its a good start ,,,
thor
james_swift
05-11-06, 09:15 PM
Here's yet another: http://www.discoveryride.com/human/rolling.html
spambait11
05-12-06, 12:00 AM
So, according to the chart and artificial testing conditions (at least Ian is honest about it), Bromptons dominate. But many of us already knew that. :)
Fear&Trembling
05-12-06, 01:50 AM
Is anyone running Greenspeed Scorchers in the 406 size? I am a sucker for stats (no matter how poor the methodology, bias, or limited nature of the trial!) and these results confirm the findings of a few other reviews I have read (in the 349 size)
I might get a pair.
spambait11
05-12-06, 02:45 AM
406 Scorchers are just now beginning to ship (to the U.S. anyway). They were held up because the very first batches of 349s were too large such that they fell off the rims, so Greenspeed was going to do more extensive beta-testing with the 406s.
Zack Kaplan (http://www.bentrideronline.com/messageboard/showthread.php?t=18487) wrote an email informing people that he is taking pre-orders.
Fear&Trembling
05-12-06, 04:12 AM
I am awaiting a reply from a UK recumbent specialist; but in the US, Hostel Shoppe are advertising them - whether they have any in stock is another question.
james_swift
05-12-06, 07:02 AM
I'm waiting for the scorchers to come out in kevlar.
spambait11
05-12-06, 08:41 AM
Re: Hostel Shoppe -
Went through the order process for two 406 Scorchers; their automated system told me "Available: 0". Calhoun Cycle doesn't have any either, but I did notice the Stelvios are one sale. ;p
LittlePixel
05-12-06, 04:02 PM
I could never buy a tyre where the logo has been created using Comic Sans. End of story :)
nedgoudy
05-12-06, 04:35 PM
Man, I knew the Maxiss Hookworms
were slow on my EZ-1 but I didn't realize
they were THAT bad! The only benefit
of the damned things is that with Tuffies
in em, I have NEVER had a flat!
Fear&Trembling
05-15-06, 01:43 AM
For those in the UK, the Scorcher is available from Westcountry Recumbents. However, I am going to wait a few weeks until they get the kevlar-lined model. It is not quite as fast as the ordinary "vanilla" version, but puncture resistance is (sometimes) important to me!
vBulletin® v3.7.3, Copyright ©2000-2008, Jelsoft Enterprises Ltd.