I'm still using, or at least own, Sun M14A and Trek "Mountain Aero" rims in the 559 size that were sold 20 years ago as mtb rims and measured only 19 mm outside. They are a bit iffy even with the 32 mm (actual) Kojaks or Paselas I run or used to run on the '03 -- much more sensitive to pressure below a certain threshold. But I used to run your typical 1.95s on them back in the day. Apart from being narrow, both these rims are bullet proof. I am using them because I have so many of them, they are strong and light, and blowouts are, thank God, rare. If I ever get a lot of $$, I'll rebuild with a nice 23 mm rim.
The Rhyno Lites measure 27 mm outside, IIRC, but they are not light -- front wheels identical except for the rims, 27 mm RLs, and the 44 mm SnoCat SLs, weighed exactly the same, to the gram, on a digital scale! (Ie, heavy.) The same 622X60 Big Apples (not the LiteSkin model) on the SnoCats measured 65 mm; on RLs, 60 mm. On Thu, Jan 16, 2014 at 11:23 PM, grant <[email protected]> wrote: > The early mountain bikes had 32mm rims for the 50mm or so tires they had. > The tire and rim with were proportional. Mtn bike tire rims got skinnier > when Keith Bontrager (this is not a knock, he has been a hero) cut down > Mavic road rims (MA-2, 20.5mm) to mtn bike 26 size, and big rim makers and > bike bike product managers wanted to be nearly as cool, so followed that > move and made skinnier rims, and we've never recovered. > > .... > > The only drawback to a wider [rim] is weight. It holds a lower pressure > tire better, it provides slightly more height and width, and especially in > the case of a sidepull or centerpull, it gives a fatter tire a better > chance to escape btw the pads when the arms are released. With canti or V, > this isn't a big deal, but if the fork blades are wide and the canti > posts are set wide and the rim is skinny, the pads will arc down at the > contact point, which...can't be great. > > Wider > -- Burque (NM) Resumes that get interviews: http://www.resumespecialties.com/ -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
