Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the April Giveaway for an Electric Bicycle Roadster V2 from Ride1UP


Change levers to thumb shifters 1984 Miyata
#1
I have an old 1984 Miyata Model 100
and I plan on replacing the drop handlebar with straight bar.

I'd also like to replace the old lever shifters with thumb shifters on the handlebar. I'm sure this has been done a thousand times but I couldn't find any instructions in this forum.

Any help is appreciated.

Joe

[Image: nzri9x.jpg]
  Reply
#2
Those are friction shifters , mounted on the stem they got the name suicide shifters as shifting in that location is a PITA. Higher quality bikes had those on the on the down tube. You can get shorter cables and move them to the down tube. If you want thumb shifters that's a whole different SIS set up and most likely you would need to change the rear derailleur to a SIS one. Depends on the system.
Never Give Up!!!
  Reply
#3
If you are going to stay with friction shifting (shifters do not 'click' into place) then the change is simple. You need to get shifters that have a friction mode and you will probably need new cables and housing as the path up to the bar shifters will be a bit longer than the current path. Setting them up would be the same process as changing the shifter cable so if you look for instructions on that it should cover it.

If you google "thumb shifter friction" you'll see choices ranging from $6 - $100. Pretty much anything will work so I wouldn't waste a lot of money on expensive shifters. (It is worth it to get good cables and housing though.)

If you want to go to indexed shifting, you would need shifter, derailleur, and gear cluster that all match. Not necessarily hard, but we'd need more info on what your bike has currently to give any specific advice.

Note that going to straight bars you will also need new brake levers and new brake cables as well (but the brake housing may be fine.)
  Reply
#4
You could reverse and cut your bar that way you can use the same brake levers. Its a surprisingly comfortable set up. IMO more comfortable and more hand positions than straight bar, like on my MB. Note downtube friction shifters. Posting photos here has become a PITA.

<a href="http://s1123.photobucket.com/user/gripgeorge/media/Fuji%20Del%20Rey%203.jpg.html" target="_blank"><img src="http://i1123.photobucket.com/albums/l548/gripgeorge/Fuji%20Del%20Rey%203.jpg" border="0" alt="1985 Fuji del Rey photo Fuji Del Rey 3.jpg"/></a>
Never Give Up!!!
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
40,660
03-09-2015, 12:02 PM
Last Post: nfmisso
 
1,308
08-03-2014, 02:54 PM
Last Post: GeorgeET
 
15,063
09-25-2013, 12:02 PM
Last Post: JaredK
 
13,298
08-03-2012, 08:19 PM
Last Post: 1FJEF
 
12,174
04-05-2012, 11:28 AM
Last Post: nfmisso
 
47,970
10-11-2011, 01:04 PM
Last Post: KC-Steve
 
9,305
07-23-2011, 08:32 AM
Last Post: Painkiller
 
11,535
06-29-2011, 11:21 PM
Last Post: Painkiller

Forum Jump:

[-]
10 Latest Posts
Are electric bikes the future?
Today 06:58 AM
Gear shift is stuck!
Yesterday 05:57 PM
Help with filling up hydraulic brake lev...
Yesterday 09:25 AM
Freehub body change compatibility
Yesterday 09:22 AM
cable loose from gear handle shifter
04-10-2021 12:40 PM
What’s the name and code for this bottom...
04-10-2021 11:01 AM
What’s the name of this bottom bracket ?
04-10-2021 10:58 AM
Grip shift gear on kids bike difficult t...
04-10-2021 10:16 AM
introduce yourself and your ride :)
04-10-2021 05:57 AM
Horrendous noises when pedalling
04-10-2021 03:14 AM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
11 posts
no avatar 2. Kgirl
6 posts
no avatar 3. Criminal
5 posts
no avatar 4. Mark Zucker
5 posts
no avatar 5. Papa Dom
4 posts