Re: [RBW] Riv's Retreat from 650B in Larger Sizes, & Optimum Tire Pressures/Sizes

2010-08-16 Thread Seth Vidal
On Mon, Aug 16, 2010 at 12:12 PM, Steve Palincsar wrote: > On Mon, 2010-08-16 at 09:24 -0600, PATRICK MOORE wrote: >> So the principal advantage, apart from the other one of fitting fatter >> tires into frames that will fit only very skinny 622 tires, is that >> you can find nicer 38mm+ tires in 5

Re: [RBW] Riv's Retreat from 650B in Larger Sizes, & Optimum Tire Pressures/Sizes

2010-08-16 Thread Steve Palincsar
On Mon, 2010-08-16 at 09:24 -0600, PATRICK MOORE wrote: > So the principal advantage, apart from the other one of fitting fatter > tires into frames that will fit only very skinny 622 tires, is that > you can find nicer 38mm+ tires in 584 than 32+ tires in 622? I know > that that is certainly the c

Re: [RBW] Riv's Retreat from 650B in Larger Sizes, & Optimum Tire Pressures/Sizes

2010-08-16 Thread PATRICK MOORE
So the principal advantage, apart from the other one of fitting fatter tires into frames that will fit only very skinny 622 tires, is that you can find nicer 38mm+ tires in 584 than 32+ tires in 622? I know that that is certainly the case for 559 and 571 -- id est, that only the skinnies come with

Re: [RBW] Riv's Retreat from 650B in Larger Sizes, & Optimum Tire Pressures/Sizes

2010-08-15 Thread Steve Palincsar
On Sat, 2010-08-14 at 19:20 -0600, PATRICK MOORE wrote: > Why are 650B tires better rolling and smoother than 700c tires, all > things else being equal? If I understand wheels, the bigger the > diameter, the smoother the ride. All things are not equal. Compare just about any 700C x 38 tire with a

Re: [RBW] Riv's Retreat from 650B in Larger Sizes, & Optimum Tire Pressures/Sizes

2010-08-14 Thread PATRICK MOORE
Why are 650B tires better rolling and smoother than 700c tires, all things else being equal? If I understand wheels, the bigger the diameter, the smoother the ride. I can see going with smaller wheels for greater strength but I believe (don't know) that that is really not an issue for well built w

Re: [RBW] Riv's Retreat from 650B in Larger Sizes, & Optimum Tire Pressures/Sizes

2010-08-14 Thread cyclotourist
Rob, thanks for digging up that graph! Here's a better one IMHO: http://www.flickr.com/photos/mrjoeball/4525757653/sizes/l/in/photostream/(just the next one over in largest size) The real benefit comes when comparing different sizes. A 28mmX700c vs a 38mmX700C almost doubles the volume. That's

[RBW] Riv's Retreat from 650B in Larger Sizes, & Optimum Tire Pressures/Sizes

2010-08-14 Thread Rob Harrison
In another thread on the Sam Hill, on Aug 14, 2010, at 3:28 PM, palin...@his.com wrote: I do not understand the rationale behind Riv's retreat from 650B in any size bike that I could ride (in riv sizing, I take a 60 cm). I wonder about this too. In terms of optimum tire pressure/rolling r