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.

convert Trek 7500

Old 06-11-05, 09:06 AM
  #1  
dmiller91
Senior Member
Thread Starter
 
dmiller91's Avatar
 
Join Date: Jun 2002
Location: Madison, WI
Posts: 190

Bikes: Specialized vita comp disc, trek 7500 multitrack

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
convert Trek 7500

Hi, I have a Trek 7500 that a LBS put dropped handlebars on... I want to make it back into a straight handlebar. What do I need to replace... just the shifter/brake combo? The rear derailleur is shimano 105, can't read what the front is... the brakes are the type that are connected at the top. I would like to keep the derailleurs and just replace the shifters. Is that a dumb question?

Also, I want to put a slightly more gravel friendly tired on the rims. With the brakes being top balanced, or whatever you call it.... I think I can fit a little bigger tire in, so that's not a problem.

I want to make this my trail bike. We have lots of gravel RR trails here. I prefer the upright straight handlebars, so don't tell me to keep my drops!

Diane
dmiller91 is offline  
Old 06-11-05, 02:27 PM
  #2  
Retro Grouch 
Senior Member
 
Retro Grouch's Avatar
 
Join Date: Feb 2004
Location: St Peters, Missouri
Posts: 29,298

Bikes: Catrike 559 I own some others but they don't get ridden very much.

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 1160 Post(s)
Liked 31 Times in 23 Posts
Most likely just replacing the handlebar, shifters and brake levers will do it. There are a couple of potential problem areas.

1. What's the handlebar clamp diameter? Road handlebars are USUALLY fatter than flat mountain bars. If they substituted a handlebar stem with a larger clamp size, you'll have to use a shim to make your new flat bars stay put.

2. If it was my bike, I'd get shifters and brake levers that clamped onto the bar separately. At some point you'll probably want to replace either one or the other.

3. What kind of brakes are you planning to use? Since your bike has road brake levers now, I'm thinking it must have center-pull canty brakes. Make sure that your new brake levers match.

4. For crushed limestone rail-trail conversions, I like 1.5" tires best. There are lots of choices. Don't worry about the knobs on the sides, they don't do anything.
Retro Grouch is online now  
Old 06-11-05, 03:59 PM
  #3  
dmiller91
Senior Member
Thread Starter
 
dmiller91's Avatar
 
Join Date: Jun 2002
Location: Madison, WI
Posts: 190

Bikes: Specialized vita comp disc, trek 7500 multitrack

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Can you still buy brakes levers and shifters separately? Good point, on my old bike I ended having to replace the whole thing because the shifter broke.

I think I'll take it in to the LBS so I can at least can an estimate from them...
dmiller91 is offline  
Old 06-11-05, 04:05 PM
  #4  
Brad01
Numbnuts
 
Join Date: May 2005
Location: Bozeman, MT
Posts: 128

Bikes: KHS 555, Trek 820 converted to cruiser/winter bike, Trek 520 singlespeed conversion.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Sure can.
They do make dual control levers too, in which one lever can both brake (as normal) and when pushed up or down can shift.
General opinion on this board seems to tend against such units, though.
Brad01 is offline  
Old 06-11-05, 05:08 PM
  #5  
briancady413
Senior Member
 
Join Date: Apr 2005
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
It's easy to remove the stem and replace the handlebars with the stem - and this way you get a stem that fits the handle bars. A freindly bike shop might sell you a used upright stem/handlebar combo with the levers and shifters from an old bike or from someone converting in the opposite direction.
briancady413 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Red_Leaf24
Northern California
20
09-01-08 01:47 PM
highfade
Training & Nutrition
3
09-07-07 05:07 PM
pearcem
Training & Nutrition
0
10-25-04 03:29 PM
Moonshot
BMX
3
06-02-04 10:32 PM

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

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.