1 1/8 th inch threaded steerer tube???
06-07-20, 09:53 AM
#1
Senior Member
Thread Starter
1 1/8 th inch threaded steerer tube???
I have recently purchased a Raleigh folding Twenty frame to play with. For the purists read no further I have no intention of restoring it to original.
I am trying to figure out a way to make the foot or so of the 1 inch tubing I'll be using for the vertical part of the stem slide down into the steerer tube for compacting when folding or for shorter riders to use the bike. There are 1 1/8th inch threaded headsets but I can't find a 1 1/8th inch steerer tube. I have looked at the main vendors but no luck.
Does anyone have any leads? Or the size of the threads and perhaps where to purchase a die to thread a piece of tubing.
Thanks
Steve
I am trying to figure out a way to make the foot or so of the 1 inch tubing I'll be using for the vertical part of the stem slide down into the steerer tube for compacting when folding or for shorter riders to use the bike. There are 1 1/8th inch threaded headsets but I can't find a 1 1/8th inch steerer tube. I have looked at the main vendors but no luck.
Does anyone have any leads? Or the size of the threads and perhaps where to purchase a die to thread a piece of tubing.
Thanks
Steve
06-07-20, 10:24 AM
#2
Randomhead
Join Date: Aug 2008
Location: Happy Valley, Pennsylvania
Posts: 24,396
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Liked 3,696 Times
in
2,517 Posts
All that 1 1/8" stuff is pretty rare because it didn't last very long. You might be able to find a used die. From your description, I can't really tell what you're trying to do, but can you use clamps instead? That sounds like something that is done on folding bikes without weird thread sizes.
06-07-20, 10:48 AM
#3
Senior Member
Thread Starter
I have looked at the folding bike collapsible stems but they seem really bulky, trying for something lighter looking.
I want to be able to use a quick release clamp ( like on MTB seat posts) to hold the 1 inch steerer in place and when storing the bike release the clamp and slide the handle bar stem into the fork steerer and lock it in place for this I need to use a threaded fork that will extend an inch or so above the head set nuts for the clamp. Maybe it won't work but I figured I'd give it a go. A 1 inch steerer requires a 7/8 stem which is too small for what I want.
I did find a 1 1/8th steerer from a lowrider springer fork on ebay. We'll see when the parts arrive.
I want to be able to use a quick release clamp ( like on MTB seat posts) to hold the 1 inch steerer in place and when storing the bike release the clamp and slide the handle bar stem into the fork steerer and lock it in place for this I need to use a threaded fork that will extend an inch or so above the head set nuts for the clamp. Maybe it won't work but I figured I'd give it a go. A 1 inch steerer requires a 7/8 stem which is too small for what I want.
I did find a 1 1/8th steerer from a lowrider springer fork on ebay. We'll see when the parts arrive.
06-07-20, 06:21 PM
#4
Old fart
Join Date: Nov 2004
Location: Appleton WI
Posts: 24,784
Bikes: Several, mostly not name brands.
Mentioned: 153 Post(s)
Tagged: 0 Thread(s)
Quoted: 3587 Post(s)
Liked 3,400 Times
in
1,934 Posts
The "standard," such as it was, for 1-1/8" threaded steer tubes was 26tpi. Park and Hozan made 1-1/8" x 26tpi dies for this purpose; they turn up on eBay occasionally.
06-07-20, 07:47 PM
#5
framebuilder
for some reason I have a few 1 1/8" threaded steerers. What length were you looking for?
06-07-20, 08:40 PM
#6
Senior Member
Thread Starter
06-07-20, 08:42 PM
#7
Senior Member
Thread Starter
Thanks Doug. I have an 8 1/2 inch one on the way, from a lowrider springer fork. I don't have the frame yet, if what I have coming is the wrong size I'll contact you, appreciate it.
