[RBW] Re: Has independent testing of Compass tires done?

2018-09-30 Thread Justin, Oakland
Something I value these days is folks respecting the work that goes into creating content. If the author is not offering it up for free then it’s not free. Maybe a friend could do that for you privately but to do what you’re saying would help to sink BQ pretty quickly. -J -- You received thi

[RBW] Re: Has independent testing of Compass tires done?

2018-09-30 Thread William deRosset
P.S. profit is the coat of staying in business. Best Regards, Will William M deRosset Fort Collins CO USA -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to r

[RBW] Re: Has independent testing of Compass tires done?

2018-09-30 Thread William deRosset
Dunno, Why don't grocery stores just give away food? Or Tesla dealers give away cars? Why don't authors just post their books in PDF format online? Perhaps it costs money to run tests and publish them? And people who do it for a living need to make money at it? Totally weird. Best Regards,

Re: [RBW] Re: Has independent testing of Compass tires done?

2018-09-30 Thread Eric Daume
Because that would be copyright infringement? On Sun, Sep 30, 2018 at 8:36 PM John Hawrylak wrote: > Why doesn't someone just post a pdf scan of the BQ tests results. Or do > we all have to pay for the subscription? > > John Hawrylak > Woodstown NJ > > On Friday, September 28, 2018 at 6:50:23 P

[RBW] Re: Has independent testing of Compass tires done?

2018-09-30 Thread John Hawrylak
Why doesn't someone just post a pdf scan of the BQ tests results. Or do we all have to pay for the subscription? John Hawrylak Woodstown NJ On Friday, September 28, 2018 at 6:50:23 PM UTC-4, Lum Gim Fong wrote: > > I was looking at this site and wondering why Compass tires haven't been > put u

[RBW] Re: Has independent testing of Compass tires done?

2018-09-30 Thread William deRosset
One other thing: they performed very well in the Tour drum test in which the tire was pumped up to 90psi. I wouldn't ride anything wider than a 23mm tire pumped up that hard. A 27mm tubular or a 32mm clincher I put at 3.5-4 bar on the road, and wider goes lower still. I may lose a watt or thr

[RBW] Re: Has independent testing of Compass tires done?

2018-09-30 Thread William deRosset
Dear Lum, Lit review? This is in the realm of superstition and marketing for the most part. Real, statistically-valid crr data is usually considered proprietary/competitive data, and not published. Google is your friend, sorta. The 35-622 standard casing was tested by bicycle rolling resistanc

[RBW] Re: Has independent testing of Compass tires done?

2018-09-28 Thread Lum Gim Fong
I am aware of BQ’s testing methodologies and ideas regarding tire performance, as well as their beliefs on the shortcomings of drum tests. But I would also be interested in a literature survey of tire tests utilizing other methods, as well as similar methods done by others. -- You received thi

[RBW] Re: Has independent testing of Compass tires done?

2018-09-28 Thread William deRosset
Hi, all, No tire that performs badly on a drum performs well in roll down testing. The inverse is not necessarily true. A drum test can point to a fast tire, but, because it doesn't account for losses in the sprung weight (that would mostly be the windbag pushing the pedals), cannot tell the wh

[RBW] Re: Has independent testing of Compass tires done?

2018-09-28 Thread Mark Schneider
Not sure these guys will test Compass tires, I might be mistaken but I believe Jan has been pretty dismissive of drum testing. He doesn't think it represents real world riding. On Friday, September 28, 2018 at 3:50:23 PM UTC-7, Lum Gim Fong wrote: > > I was looking at this site and wondering why