Originally Posted by
clubman
The worlds gone mad. Road bikes with fatties, mtn bikes with skinnys.
My contribution. A big shop in my area moved a couple of years ago and I got into the basement for a vintage look-see. Got 2 RM-20's, and RM-17 and a Ritchie Rock for $10 apiece (hooray!)
Also picked up a pair of 1" Tom Slicks. Also $10. You can just see them mounted on the RM-20s, not inflated but pretty small what? The Rock is a beautiful rim, machined sidewalls with 'Triple Box Construction' whatever that is. Made in Italy, retailed for $90 cdn. Maybe made by Ambrosia. So I too may jump on the drop bar express someday soon.
I can't figure out why people would want to put skinny tires on MTBs anymore, now that fast-rolling fat tires are available. But I do know what a triple-box rim is:
(Image cribbed from the Harris site.)
Note how instead of one "box" formed by the spoke bed, inner wall, and both sidewalls, there are partitions forming three boxes. Makes it really strong, with something of a weight penalty.