Bicycle Mechanics - Puzzling....
Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.
I found an old Supergo catalog while shredding old documents. It was a real trip down memory lane to look through it.
One thing caught my eye.
They were clearing out some Iron Horse 7 Point bikes; two had single-crown forks, one a double. The headtube on all 3 was a 1.5. Spec listed for the SC bikes was 1.5, the DC zero-stack 1-1/8.
I have a hard time believing IH made the headtubes differently. So would these be cross-compatible?
03-10-10, 10:48 AM
not cross compatable - you can get a headset that will let you put a 1 1/8" fork in a 1.5" head tube. that is what they probably did. But it was not uncommon to have different sized headtubes in the same model - some people wouldn't touch the new 1.5 standard because there was not a lot of fork choice.
03-10-10, 12:28 PM
Getting bikes made by Asian manufacturers (like Iron Horse does) is like ordering food in a restaurant... you ask for something and they make it.
If you ask for 1000 frames with 1.5" headtubes and 500 frames with 1 - 1/8 headtubes, that is what you get.
OK, I guess that's why each frame was listed as having a 1.5 headtube, and only one of the three sported a different headset.
Yeah, I know all about reducer headsets; what I have yet to encounter is a ZERO-STACK reducer headset. That would be what this would take for you to be right.
Guess I'll have to research further. I was hoping some arcane expert would pop up, but it's same old same old. Hey, peeps -- read a little closer.
OK, I love Google -- find things like a left-nostril inhaler that glows in the dark, with your state motto on it....
ID of headtubes -- 1.5 is 49.6, ZS is 43.5. Not cross-compat.
WTF -- oh, of course... Iron Horse, what was I THINKING?!?
Powered by vBulletin® Version 4.1.12 Copyright © 2014 vBulletin Solutions, Inc. All rights reserved.