Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

Rene, In my experience the most obvious sign is the noise the tire makes in contact with the ground and it just sounds off. Also the immediate and troubling sign is a lack of confidence when cornering, a feeling as if the bike could easily lose traction and spill over when cornering tight

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

Thanks for that. It's interesting that when I swapped my 559 X 35 mm Kojaks (used with tubes) for Compass Elk Passes, the increase in ease of pedaling and "smoothness" was pretty closely imitated by the same Kojaks run tubeless. I didn't ride the Kojaks tubeless long enough to develop a precise

[RBW] Re: How to Determine the "Correct" Tire Pressure?

I pump up my tires every morning (every morning that I'm riding, that is). The larger the tire the less out of spec the pressure is, but I still top them off, nonetheless. What can I say? I'm sharing the road with motor vehicles, I'm usually riding with a sense of purpose (transportation,

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

A quick Google search found this blog study that showed a 22% reduction in rolling resistance (by wattage) at 25 PSI: http://www.bicyclerollingresistance.com/specials/tubeless-latex-butyl-tubes -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch"

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

Patrick, I recall seeing the 20% figure mentioned by Schwalbe, but I can't find the original source for that anywhere on their webpage now. My anecdotal experience of going from a tubed Schwalbe Super Moto to a tubeless Super Moto setup suggests that this factor is reasonable. Also, nothing

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

Mike -- do you have the source for the test or tests showing this? I know that my Kojaks felt much better without tubes than with tubes. On Fri, Mar 11, 2016 at 5:11 PM, Mike Shaljian wrote: > You should consider just based on the fact that going tubeless reduces >

[RBW] Re: How to Determine the "Correct" Tire Pressure?

You should consider just based on the fact that going tubeless reduces rolling resistance by 20%. It makes a huge difference. -- 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

[RBW] Re: How to Determine the "Correct" Tire Pressure?

Ha! I came back home to KC and just took a ride on my Roadeo with standard sidewall Stampede Pass. I checked the tire pressure with my thumb and forefinger gauge. They felt soft (I haven't been on that bike in a couple of months) but maybe rideable so thinking about this thread I figured I'd

[RBW] Re: How to Determine the "Correct" Tire Pressure?

I haven't tried tubeless yet, because of that my test fir tire pressure is if when I pop the front wheel over a curb when the rear make contact with said curb does the tire compress to the point that I need to worry about snake bite flats!? If not I let a little air out, if it looks like SB

[RBW] Re: How to Determine the "Correct" Tire Pressure?

My pressures have crept up to where they are from readings of 50 front, 55 back about a year ago. Reviewing my notes (kept on my phone), I'm seeing: "56/64 seems perfect" to "65/59 feels mushy in front using the handlebar bag" Just goes to show, this search may never

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

On a recent ride in to work, I had a plushy Grand Bois Cypres tire in back but a less-plushy Panracer Pasela in front. I was riding on a bike I haven't ridden for a while that has a somewhat more flexy fork. I remember thinking "This Pasela seems unusually plushy on this bike, it's really

[RBW] Re: How to Determine the "Correct" Tire Pressure?

I'm running Barlows on an upright, 210 lbs of me, and I run 60 psi rear, 40 psi front > Yikes. That seems awfully low for the Barlows, they're so supple. I run > mine at 62 front 69 rear and I just bumped that up from 60 /68. Granted, > I'm probably 240-250, all in, with bodyweight, bike, and

[RBW] Re: How to Determine the "Correct" Tire Pressure?

On Thursday, March 10, 2016 at 10:32:39 AM UTC-5, Deacon Patrick wrote: > > Thank you, Jan. This is great! This matches my experience of riding by > feel, in which I've settled on: > > 30 psi Barlow Pass on Quickbeam and loaded Thunder Burt Hunqapillar > 20 psi day ride TB Hunqapillar (and even

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

The same 60 mm Big Apples that I had run on 24 mm Alex rims at 18/22 or so felt harsher at those pressures on the 44 mm SnoCats; so on the latter I ran them generally at about 16/20, mostly pavement. I'm 170 - 175, and had no problems with them, except for dive in corners on pavement if the front

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

That sounds like very low pressure for a tire of that volume. I run 60mm Schwalbe Big Ones (64 mm actual) on 45mm rims and they run tubeless at 23 in the front and 26 in the back. I find that any lower than 20 PSI and the tire collapses in corners and handles weird. However, at this pressure

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

Thank you all for the feedback! On Thu, Mar 10, 2016 at 4:00 PM, Steve Palincsar wrote: > > > On 03/10/2016 06:54 PM, El Sapo wrote: > >> Just got some compass tires and had a dumb question. Are they directional? >> > > no > > The 2 file tread patterns go in opposite

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

On 03/10/2016 06:54 PM, El Sapo wrote: Just got some compass tires and had a dumb question. Are they directional? no The 2 file tread patterns go in opposite directions beyond the straight center tread. Should the file tread be facing a certain direction? If so, which one? tradition

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

Good question. I usually run them so that the chevrons on the sides point toward the front, but I'm not sure it makes a difference. --Eric N www.CampyOnly.com CampyOnlyGuy.blogspot.com Twitter: @CampyOnlyGuy > On Mar 10, 2016, at 3:54 PM, El Sapo wrote: > > Just

[RBW] Re: How to Determine the "Correct" Tire Pressure?

Just got some compass tires and had a dumb question. Are they directional? The 2 file tread patterns go in opposite directions beyond the straight center tread. Should the file tread be facing a certain direction? If so, which one? Sorry if this has been discussed before. On Wednesday, March

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

Rene, a couple of things you'll feel if your tires are too low - when you turn, it feels like the bike doesn't turn as quickly as you do, and that it keeps turning after you stop. Also too low and you feel or hear the rims shock on bumps. Of course properly aired tires do this until they warm

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

One other remark about tire suppleness. I briefly ran Kojaks tubeless and with sealant and found them noticeably faster and smoother in feel than with tubes, so much so that I planned to use them instead of Elk Passes on the '03, because of the greater width for dirt riding. (These Kojaks were

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

What the Deacon said. I had a low-speed crash a few years ago that was caused by an unintentional experiment in low tire pressure (a slow leak). As I was making a turn, my front wheel squirmed around so much that I lost control and went down. I can also notice too-low pressure when I'm riding

[RBW] Re: How to Determine the "Correct" Tire Pressure?

One way to find out! Grin. I was amazed the difference supple tires made in every type of riding (paved, country roads, single track). I don't know if different runs of the QB's had different clearences, but my 38mm Barlow passes fit well on my last run (silver) QB. With abandon, Patrick On

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

If you think that the Kojaks are doggy, ride Tioga City Slickers or the old Avocet city tires of similar appearance: *then* you will feel sluggishness, *and* a narrow range between harsh and squishy! The main point: if the BJPs are like the Elk Passes, yes, they are worth it. With modern sealants

[RBW] Re: How to Determine the "Correct" Tire Pressure?

I've been thinking a lot about this recently, not for it's application to supple tires per se, but for the inverse: the stiffer the tire, the more you have to be careful about tire pressure in order to optimize rolling resistance. I tend to run stiffer tires (Schwalbe Kojak, Marathon Supreme)

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

As the other Patrick said, squishy and even, dangerous. I recall forgetting and somehow letting pressure fall to ~ 10 psi on my 60 mm Big Apples -- fortunately, those, while certainly more supple than many tires, have sidewalls that to some degree support the tire. I didn't really notice until I

[RBW] Re: How to Determine the "Correct" Tire Pressure?

You know it when you take no thought , for here incorrect is as irrelevant as correct :) -- 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

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

On 03/10/2016 10:59 AM, René Sterental wrote: Dumb question, but how do you know your tires are collapsing under hard cornering? What does it feel like? I guess you can't see them, so I'm wondering what the signs are. I can tell you what excessively low front tire pressure feels like when

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

Squishy. Sloppy. Purposefully under inflate your fattest tire (10-15 pounds), then take a few corners slowly, or weave back and forth at higher speeds. You'll feel it and know. With abandon, Patrick On Thursday, March 10, 2016 at 8:59:29 AM UTC-7, René wrote: > > how do you know your tires

Re: [RBW] Re: How to Determine the "Correct" Tire Pressure?

Dumb question, but how do you know your tires are collapsing under hard cornering? What does it feel like? I guess you can't see them, so I'm wondering what the signs are. René On Thu, Mar 10, 2016 at 7:32 AM, Deacon Patrick wrote: > Thank you, Jan. This is great! This

[RBW] Re: How to Determine the "Correct" Tire Pressure?

Thank you, Jan. This is great! This matches my experience of riding by feel, in which I've settled on: 30 psi Barlow Pass on Quickbeam and loaded Thunder Burt Hunqapillar 20 psi day ride TB Hunqapillar (and even with some 60 pound grocery loads, but those are pushing it a bit.) Even our