Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  

Go Back   > >

General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

User Tag List

Thread Tools Search this Thread
Old 02-06-14, 09:42 PM   #1
Thread Starter
Join Date: Jan 2014
Location: Camarillo, Ca
Bikes: 2014 Swobo Folsom
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
SRAM Automatix 2-speed Hub

Hey everyone,

I'm thinking of converting my single-speed to a 2-speed via the SRAM Automatix hub. However, my frame's rear spacing is 135mm and the hub is 120mm with included spacers to accomodate 130mm frames. I know the stock axle isn't quite long enough to safely tighten it down to the frame (175mm overall length).

Anyway, I was wondering if anyone knows if it is possible to switch out the stock axle for a standard threaded one for a 135mm frame. More specifically, I guess my question is for anyone who has actually taken apart the SRAM hub; can the stock axle be removed/replaced by itself, or is it connected with or have proprietary qualities with the rest of the internals of the hub, therefore cannot be changed? Pardon my lack of knowledge on how these things work...

Oh and I have already considered the Sturmey Archer Duomatic, which I know comes in a compatible size, but I'd just rather not have to backpedal to shift, since I'd still want my coaster brake and I don't want to shift every time I brake.

Thanks in advance!

Last edited by Tonchia; 02-06-14 at 11:31 PM.
Tonchia is offline   Reply With Quote
Old 06-20-17, 05:20 PM   #2
Join Date: Jun 2017
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I know this is an old thread, but I'm in the same boat - although it looked like it could be spaced anothe 5mm and tightened safely; is this not the case?

Also, can the sprocket be flipped to change the chainline?
eimkeith is offline   Reply With Quote
Old 06-20-17, 07:35 PM   #3
Senior Member
jefnvk's Avatar
Join Date: Apr 2015
Location: Metro Detroit
Bikes: 2016 Novara Mazama
Posts: 5,495
Mentioned: 37 Post(s)
Tagged: 0 Thread(s)
Quoted: 2132 Post(s)
Could just go to Ikea and buy a brand new bike with that hub, belt drive, and 20 year warranty!
jefnvk is offline   Reply With Quote
Old 06-20-17, 07:59 PM   #4
Senior Member
blakcloud's Avatar
Join Date: Aug 2007
Location: Toronto, Ontario
Bikes: Rivendell Sam Hillborne, Brompton S/M3L (modified)
Posts: 1,620
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 221 Post(s)
@BruceMetras is someone who might know the answer to this. He modifies these hubs so he knows the inner workings. He is on the this site, mostly in Folding Bikes.

Last edited by blakcloud; 06-20-17 at 08:03 PM.
blakcloud is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

All times are GMT -6. The time now is 07:16 AM.

  • Ask a Question
    get answers from real people!
Click to start entering your question.