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


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 04-22-14, 06:20 AM   #1
FatBottomedGirl
Senior Member
Thread Starter
 
FatBottomedGirl's Avatar
 
Join Date: Oct 2012
Bikes:
Posts: 179
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Frame difference between mechanical and electrical transmission

Hi,

I am currently browsing around to find a new frameset.
I intend to use mechanical shifting only, not interested in electrical shifting.

I have never really seen an electrical shifting system for real so I never really witnessed how it is mounted.

I am a little confused with the frame specifications I see:
  1. some state they are "ready for electrical shifting"
  2. some state they are *designed* for electrical shifting (and there is another frameset from the same brand that states to be *designed* for mechanical shifting, all other specifications being identical)
  3. some state nothing at all

I wouldn't worry about getting a 3. since mechanical is still the default system.
I wouldn't worry either about 1. as it only states they are "ready" for electrical.
How about 2. ? in a perfect world I wouldn't worry and get the mechanical one but there are availability differences, several months difference, so *not* discarding the electrical model and using it with mech. is quite tempting...
FatBottomedGirl is offline   Reply With Quote
Old 04-22-14, 06:29 AM   #2
Kopsis
Senior Member
 
Kopsis's Avatar
 
Join Date: Apr 2008
Location: St. Pete, Florida
Bikes:
Posts: 1,090
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
When I was researching road bike frames I found there wasn't much precision or consistency in the language used to describe electronic shifting support. This is especially true when shopping Chinese suppliers. The only reliable thing you can do is contact the vendor and ask if the frame you're interested in supports mechanical groupsets. FWIW, I did not find any frames that could not support mechanical shifting (even those "designed for DI2"), but that doesn't mean they're not out there.
Kopsis is offline   Reply With Quote
Old 04-22-14, 07:25 AM   #3
bradtx
Senior Member
 
Join Date: Jun 2010
Location: Pearland, Texas
Bikes: Cannondale, Trek, Raleigh, Santana
Posts: 6,698
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 58 Post(s)
FatBottomedGirl, I suspect that a frame made exclusively for electronic shifting won't have downtube cable housing stops. A frame that is "ready for electronic shifting" may have a dedicated mounting position for at least a battery.

Brad
bradtx is offline   Reply With Quote
Old 04-22-14, 07:40 AM   #4
himespau 
Senior Member
 
himespau's Avatar
 
Join Date: Jun 2008
Location: Louisville, KY
Bikes:
Posts: 9,598
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 116 Post(s)
Quote:
Originally Posted by bradtx View Post
FatBottomedGirl, I suspect that a frame made exclusively for electronic shifting won't have downtube cable housing stops. A frame that is "ready for electronic shifting" may have a dedicated mounting position for at least a battery.

Brad
Edit: I was just about to post the same thing but Brad beat me to it before I got to this tab.
himespau is offline   Reply With Quote
Old 04-23-14, 10:46 AM   #5
FatBottomedGirl
Senior Member
Thread Starter
 
FatBottomedGirl's Avatar
 
Join Date: Oct 2012
Bikes:
Posts: 179
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Thanks, makes a lot of sense.
FatBottomedGirl is offline   Reply With Quote
Old 04-23-14, 11:05 AM   #6
gsa103
Senior Member
 
Join Date: May 2013
Location: SF Bay Area
Bikes: Bianchi Infinito (Celeste, of course)
Posts: 3,006
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 146 Post(s)
For electronic shifting, the front and rear derailleurs mount in the usual location. There's a small "brain" or junction box that mounts near the stem. The battery typically mounts to the downtube, basically below the bottle cage.

Electronic shifting ready usually means internal cabling and a battery mount tucked somewhere slightly hidden (such as a seat post or chainstay).

Frames that don't say anything are going to be standard.
gsa103 is online now   Reply With Quote
Old 04-23-14, 12:15 PM   #7
Looigi
Senior Member
 
Looigi's Avatar
 
Join Date: Dec 2010
Bikes:
Posts: 8,951
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Yeah. The derailleurs and shifters all mount the same. What differs are the cables and cable routing. You can put electronic shifting on a mechanical frame by running the electrical cables along the frame or by any convenient means. Frames intended only for electronic shifting don't have the cable stops and appropriate routing for mechanical cables so can only be set up with electronic shifting.
Looigi is offline   Reply With Quote
Reply


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 09:03 PM.