Go Back  Bike Forums > Bike Forums > Folding Bikes
Reload this Page >

Need Stem Help

Notices
Folding Bikes Discuss the unique features and issues of folding bikes. Also a great place to learn what folding bike will work best for your needs.

Need Stem Help

Old 01-08-23, 04:42 PM
  #1  
CrimsonEclipse
Senior Member
Thread Starter
 
Join Date: Dec 2004
Posts: 511
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 137 Post(s)
Liked 154 Times in 85 Posts
Need Stem Help

I have 2 folders, one (Dahon) with a clamp on style stem that has a 25-30 degree angle to make it nearly perpendicular with the ground.
The second is an old cheapie (Citizen Folder) that has a 22.2mm quill stem that has zero bend in it so it moves the handlebars close to the rider (upright cycling only).

Where can I find a quill stem with the 25-30 degree angle?
What is the angle called? (like angle of incidence, or stem deflection angle)

and finally
Are there any NON folding stem solutions?
I ride the folders because the fit is better for me and the folding stems invariably add some amount of wiggle or movement in the folding mechanism.
I would like to try a non folding stem on either bike.

I appreciate the help on the rather obscure request
CrimsonEclipse is offline  
Old 01-08-23, 05:49 PM
  #2  
PhilFo 
Tinker-er
 
Join Date: Oct 2007
Location: Mid-Atlantic
Posts: 116

Bikes: 1956 Rudge Sports; 1958 Rudge Sports; 1983 Univega Alpina Uno; 1981 Miyata 610; 1973 Raleigh Twenty; 1971 Raleigh Twenty; 1992 Breezer Lightning, V4 Yuba Mundo aka "The Schlepper"

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 47 Post(s)
Liked 63 Times in 46 Posts
There are definitely plenty of 22.2mm quill stems out there that don't have any folding mechanism. The problem is that they usually are pretty short. For a high-rise, you could find a Nitto Dirt Drop MT-10 stem, which is going to be about the longest out there. If you want more reach, you could get a Technomic, which would be the same length out of the steerer tube but greater reach to move your bars farther forward. One thing you could try is a quill to threadless adapter which will allow you to stick any number of 1 1/8" threadless stems on your quill adapter. I ride this way on my 1983 Univega, as the quill diameter is 21.1mm, the old BMX size. I have an adapter in there and atop it sits a Redshift ShockStop stem. It's really ugly but it works great.
PhilFo is offline  
Old 01-08-23, 07:43 PM
  #3  
CrimsonEclipse
Senior Member
Thread Starter
 
Join Date: Dec 2004
Posts: 511
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 137 Post(s)
Liked 154 Times in 85 Posts
Originally Posted by PhilFo View Post
There are definitely plenty of 22.2mm quill stems out there that don't have any folding mechanism. The problem is that they usually are pretty short. For a high-rise, you could find a Nitto Dirt Drop MT-10 stem, which is going to be about the longest out there. If you want more reach, you could get a Technomic, which would be the same length out of the steerer tube but greater reach to move your bars farther forward. One thing you could try is a quill to threadless adapter which will allow you to stick any number of 1 1/8" threadless stems on your quill adapter. I ride this way on my 1983 Univega, as the quill diameter is 21.1mm, the old BMX size. I have an adapter in there and atop it sits a Redshift ShockStop stem. It's really ugly but it works great.
Thought of the quill to threadless but I need that 25-30 degree bend to open up the cockpit.
CrimsonEclipse is offline  
Old 01-08-23, 08:02 PM
  #4  
PhilFo 
Tinker-er
 
Join Date: Oct 2007
Location: Mid-Atlantic
Posts: 116

Bikes: 1956 Rudge Sports; 1958 Rudge Sports; 1983 Univega Alpina Uno; 1981 Miyata 610; 1973 Raleigh Twenty; 1971 Raleigh Twenty; 1992 Breezer Lightning, V4 Yuba Mundo aka "The Schlepper"

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 47 Post(s)
Liked 63 Times in 46 Posts
Originally Posted by CrimsonEclipse View Post
Thought of the quill to threadless but I need that 25-30 degree bend to open up the cockpit.
So get a threadless riser stem and pop it on top of your adapter. You can find many 1 1/8" threadless mountain bike stems from the 90s - 00s in lengths from 80mm - 150mm and with up to about a 30 deg. rise. I think I have three of them in my basement and regularly swap around to really figure the right fit when I change a handlebar or saddle.
PhilFo is offline  
Old 01-08-23, 08:44 PM
  #5  
CrimsonEclipse
Senior Member
Thread Starter
 
Join Date: Dec 2004
Posts: 511
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 137 Post(s)
Liked 154 Times in 85 Posts
Originally Posted by PhilFo View Post
So get a threadless riser stem and pop it on top of your adapter. You can find many 1 1/8" threadless mountain bike stems from the 90s - 00s in lengths from 80mm - 150mm and with up to about a 30 deg. rise. I think I have three of them in my basement and regularly swap around to really figure the right fit when I change a handlebar or saddle.
Folding bicycle stems are around 350mm
150mm isn't going to cut it.
CrimsonEclipse is offline  
Old 01-08-23, 09:52 PM
  #6  
PhilFo 
Tinker-er
 
Join Date: Oct 2007
Location: Mid-Atlantic
Posts: 116

Bikes: 1956 Rudge Sports; 1958 Rudge Sports; 1983 Univega Alpina Uno; 1981 Miyata 610; 1973 Raleigh Twenty; 1971 Raleigh Twenty; 1992 Breezer Lightning, V4 Yuba Mundo aka "The Schlepper"

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 47 Post(s)
Liked 63 Times in 46 Posts
Originally Posted by CrimsonEclipse View Post
Folding bicycle stems are around 350mm
150mm isn't going to cut it.
I'm meaning the reach of the stem. You can get or make a long rise stem adapter then stick your threadless stem on it.
PhilFo is offline  
Old 01-09-23, 09:47 AM
  #7  
GeezyRider 
Full Member
 
GeezyRider's Avatar
 
Join Date: Aug 2015
Location: Delaware Sea Shore
Posts: 422

Bikes: There is always room for one more.

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 134 Post(s)
Liked 259 Times in 159 Posts
Originally Posted by PhilFo View Post
I'm meaning the reach of the stem. You can get or make a long rise stem adapter then stick your threadless stem on it.
Yes. Provided the OP doesn't the the folding function, he could do this with recumbent steering parts such as:
https://bacchettabikes.com/products/...iece-riser-set
__________________
Don

Last edited by GeezyRider; 01-09-23 at 10:01 AM.
GeezyRider is offline  
Old 01-09-23, 11:51 AM
  #8  
Schwinnsta
Schwinnasaur
 
Schwinnsta's Avatar
 
Join Date: Dec 2006
Location: New Orleans, LA
Posts: 1,404
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 381 Post(s)
Liked 117 Times in 79 Posts
Originally Posted by CrimsonEclipse View Post
I have 2 folders, one (Dahon) with a clamp on style stem that has a 25-30 degree angle to make it nearly perpendicular with the ground.
The second is an old cheapie (Citizen Folder) that has a 22.2mm quill stem that has zero bend in it so it moves the handlebars close to the rider (upright cycling only).
Pictures of your bikes would have helped to better answer your questions.
Schwinnsta is offline  
Likes For Schwinnsta:
Old 01-09-23, 12:48 PM
  #9  
CrimsonEclipse
Senior Member
Thread Starter
 
Join Date: Dec 2004
Posts: 511
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 137 Post(s)
Liked 154 Times in 85 Posts
Originally Posted by GeezyRider View Post
Yes. Provided the OP doesn't the the folding function, he could do this with recumbent steering parts such as:
https://bacchettabikes.com/products/...iece-riser-set
Originally Posted by Schwinnsta View Post
Pictures of your bikes would have helped to better answer your questions.
Gotchya fam:




Not MY exact bikes, but they are generally the same.
See how the Citizen (bottom) has a high rise stem that is directly in line with the steering tube?
Thus 0 degree bend and smaller cockpit and upright seating only

The Dahon Mariner (top) the high rise stem bends to vertical.
Thus 25-30 degree bend and a more spacious cockpit allowing a more aggressive riding position.

So I'm looking for a high rise stem that will fit a 22.2 mm quill stem fork with a 25-30 degree bend to make the high rise stem at or near vertical for a more spacious cockpit and more aggressive riding position on the Citizen bike.

If there is a non folding solution, that would be even better but at this point, it's optional.

So, 22.2 mm quill stem, 25-30 degree bend to near vertical, 350mm or something close, even telescoping.

That is what I am looking for.
CrimsonEclipse is offline  
Old 01-09-23, 01:26 PM
  #10  
Schwinnsta
Schwinnasaur
 
Schwinnsta's Avatar
 
Join Date: Dec 2006
Location: New Orleans, LA
Posts: 1,404
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 381 Post(s)
Liked 117 Times in 79 Posts
How about something like the Aber Hallo?
Schwinnsta is offline  
Old 01-09-23, 02:34 PM
  #11  
Nyah
QR-disc must die!!!
 
Join Date: Sep 2018
Location: Shenandoah Valley, Northern Virginia.
Posts: 701

Bikes: '99 Trek 520, '20 Kona Sutra (FOR SALE 48cm), '21 Simon-Bikes mini-velo and a chromoly-framed folding bicycle with drop-bars and V-brakes, that rolls even while folded.

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 395 Post(s)
Likes: 0
Liked 194 Times in 142 Posts
The clamp on 'modern' Dahon/Fnhon-standard ste- er handleposts measures to be 1&1/8" internal diameter. Might you try a 1&1/8" threadless quill adaptor and see if the handlepost from your Dahon will fit it? If so, just get another of these handlepost to use with your Citizen. These handleposts are everywhere in all a large variety of lengths.
Nyah is offline  
Old 01-09-23, 02:36 PM
  #12  
momoman
Full Member
 
Join Date: Jul 2013
Posts: 225

Bikes: 2013 Wilier Gran Turismo, 1983 Trek 760, 80's Colnago Super, 90's De Rosa SLX, 2009 Waterford 22 Series Singlespeed, 85 Medici Pro Strada, De Rosa Alumino frameset, Dave Molten Fuso frameset, 70's beater Peugeot PX10

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 112 Post(s)
Liked 171 Times in 78 Posts
Will something like this work for your Dahon? Itíll allow you to have the ability to move the bar more forward. Or, have you considered a different handlebar design?

US $59.05 25% Off | DAHON 28.6mm 31.8mm Folding Bicycle Quick Release Height Adjustable Angle Small Wheel Bicycle Riser Front Fork Stem Adapter

https://a.aliexpress.com/_m0wpBJU
momoman is offline  
Old 01-09-23, 05:29 PM
  #13  
Nyah
QR-disc must die!!!
 
Join Date: Sep 2018
Location: Shenandoah Valley, Northern Virginia.
Posts: 701

Bikes: '99 Trek 520, '20 Kona Sutra (FOR SALE 48cm), '21 Simon-Bikes mini-velo and a chromoly-framed folding bicycle with drop-bars and V-brakes, that rolls even while folded.

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 395 Post(s)
Likes: 0
Liked 194 Times in 142 Posts
Let me re-phrase and build upon my previous post: See if the bottom end of your Dahon's handlepost will fit on a 1&1/8" threadless quill adaptor (use an adaptor that doesn't require a top cap, like this one). If it fits, that is a solution. If the bottom opening in the handlepost is just a little too small (like 1mm or less), do the following:
1. Install the quill adaptor onto the bicycle.
2. Unscrew the bolt at the bottom of the Dahon handlepost until you can fit a coin in the slot.
3. Slip a coin in the slot, so that the bolt can't pass through.
4. Start tightening the bolt so that its tip pushes against the coin. Keep tightening until the opening is spread wider.
5. Mount the handlepost on the adaptor.
6. Remove the coin and tighten the bolt, so that it re-engages the threads and then continue until properly tight,

Last edited by Nyah; 01-09-23 at 05:37 PM.
Nyah is offline  
Likes For Nyah:
Old 01-09-23, 05:53 PM
  #14  
CrimsonEclipse
Senior Member
Thread Starter
 
Join Date: Dec 2004
Posts: 511
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 137 Post(s)
Liked 154 Times in 85 Posts
Originally Posted by Nyah View Post
Let me re-phrase and build upon my previous post: See if the bottom end of your Dahon's handlepost will fit on a 1&1/8" threadless quill adaptor (use an adaptor that doesn't require a top cap, like this one). If it fits, that is a solution. If the bottom opening in the handlepost is just a little too small (like 1mm or less), do the following:
1. Install the quill adaptor onto the bicycle.
2. Unscrew the bolt at the bottom of the Dahon handlepost until you can fit a coin in the slot.
3. Slip a coin in the slot, so that the bolt can't pass through.
4. Start tightening the bolt so that its tip pushes against the coin. Keep tightening until the opening is spread wider.
5. Mount the handlepost on the adaptor.
6. Remove the coin and tighten the bolt, so that it re-engages the threads and then continue until properly tight,
It might, but it'll look terrible.

At this point I'm trying to find a 22.2mm quill stem with a 25-30 degree bend but no one photographs their parts from the angle.
CrimsonEclipse is offline  
Old 01-09-23, 06:08 PM
  #15  
PhilFo 
Tinker-er
 
Join Date: Oct 2007
Location: Mid-Atlantic
Posts: 116

Bikes: 1956 Rudge Sports; 1958 Rudge Sports; 1983 Univega Alpina Uno; 1981 Miyata 610; 1973 Raleigh Twenty; 1971 Raleigh Twenty; 1992 Breezer Lightning, V4 Yuba Mundo aka "The Schlepper"

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 47 Post(s)
Liked 63 Times in 46 Posts
Sheldon Brown or John Allen used a handlebar as a stem of a Raleigh Twenty, cut off the bar at the 1" swell for the bar clamp, then stuck a threadless stem on it.
In a nutshell, you find out where you want your hands to be then figure out how to put them there. Plenty of parts exist to make this happen.
PhilFo is offline  
Likes For PhilFo:
Old 01-09-23, 06:08 PM
  #16  
GeezyRider 
Full Member
 
GeezyRider's Avatar
 
Join Date: Aug 2015
Location: Delaware Sea Shore
Posts: 422

Bikes: There is always room for one more.

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 134 Post(s)
Liked 259 Times in 159 Posts
The Zizzo quill stem has the forward tilt you seek:
https://zizzo.bike/collections/stem/...djustable-stem

__________________
Don
GeezyRider is offline  
Likes For GeezyRider:
Old 01-10-23, 01:08 PM
  #17  
CrimsonEclipse
Senior Member
Thread Starter
 
Join Date: Dec 2004
Posts: 511
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 137 Post(s)
Liked 154 Times in 85 Posts
Originally Posted by PhilFo View Post
Sheldon Brown or John Allen used a handlebar as a stem of a Raleigh Twenty, cut off the bar at the 1" swell for the bar clamp, then stuck a threadless stem on it.
In a nutshell, you find out where you want your hands to be then figure out how to put them there. Plenty of parts exist to make this happen.
I'll check that out.
Good lead.

Originally Posted by GeezyRider View Post
The Zizzo quill stem has the forward tilt you seek:
https://zizzo.bike/collections/stem/...djustable-stem

Edit:
They use 25.2mm, but thanks anyway

Last edited by CrimsonEclipse; 01-10-23 at 01:29 PM.
CrimsonEclipse is offline  
Old 01-11-23, 04:15 AM
  #18  
Fentuz
Senior Member
 
Join Date: Aug 2014
Location: UK
Posts: 559

Bikes: Dahon Jetstream p8 (sold), customized Dahon Helios P18, customized Dahon Smooth Hound P9,customized Dahon Hammerhead 8.0 D7, Planet X Free Ranger (mullet setup), Frog 52 9s and Frog 48 1s

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 178 Post(s)
Liked 177 Times in 132 Posts
I waited to see a few more details and read the lot a few time. So, the Citizen has a slack headset/steerer angle and the stem is straight making it less roomy compared to the Dahon.
Most of modern stems clamp on a 31.8 tube so this maybe limiting, I did not pick up the diameter of the telescopic tube on the citizen unless it is what is referred as "22.2 mm quill stem".

The other issue I can see is the fork steerer diameter, what is it and how the steerer and handle post mounted together? if the fork diameter is adequate (same as Dahon), you could fit a FnHon or Dahon or litepro handle post (Aliexpress)



if the steerer is not good, you may have to swap fork headset and handle post which is not cost effective.




You could look for things like this but,the issue remain the telescopic tube diameter
Fentuz is offline  
Old 01-12-23, 12:29 PM
  #19  
Nyah
QR-disc must die!!!
 
Join Date: Sep 2018
Location: Shenandoah Valley, Northern Virginia.
Posts: 701

Bikes: '99 Trek 520, '20 Kona Sutra (FOR SALE 48cm), '21 Simon-Bikes mini-velo and a chromoly-framed folding bicycle with drop-bars and V-brakes, that rolls even while folded.

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 395 Post(s)
Likes: 0
Liked 194 Times in 142 Posts
Originally Posted by CrimsonEclipse View Post
It might, but it'll look terrible.
Nyah is offline  
Likes For Nyah:
Old 01-12-23, 02:24 PM
  #20  
CrimsonEclipse
Senior Member
Thread Starter
 
Join Date: Dec 2004
Posts: 511
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 137 Post(s)
Liked 154 Times in 85 Posts
Originally Posted by Nyah View Post
1. I really appreciate the pic.
2. oof... I mean, you're right, it does work, maybe I could cut 1 1/8" portion of the adapter to the gap isn't so obvious
(Yes yes, practicality before looks... )
CrimsonEclipse is offline  
Old 01-12-23, 06:50 PM
  #21  
tds101 
55+ Club,...
 
tds101's Avatar
 
Join Date: Aug 2012
Location: Somewhere in New York, NY
Posts: 3,917

Bikes: 9+,...

Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 954 Post(s)
Liked 601 Times in 411 Posts
Originally Posted by Nyah View Post
Originally Posted by CrimsonEclipse View Post
1. I really appreciate the pic.
2. oof... I mean, you're right, it does work, maybe I could cut 1 1/8" portion of the adapter to the gap isn't so obvious
(Yes yes, practicality before looks... )
OOF! Ya,...that's a bit fugly.
__________________
If it wasn't for you meddling kids,...
tds101 is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.