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.

Rebuilding my commuter

Old 05-07-04, 10:58 PM
  #1  
baltazar
Senior Member
Thread Starter
 
baltazar's Avatar
 
Join Date: Aug 2002
Location: earth
Posts: 70
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Rebuilding my commuter

I have a ‘92 Raleigh aluminum roadbike with a 7 speed cassette/down-tube shifters that I use as a commuter. It has a new 105 rear derailer and chain and it still needs a new cassette. I also have a Maruishi (Japanese) roadbike with steel frame, 6 speed freewheel, down-tube shifters, and Suntour components. I want to use the Maruishi’s steel frame and the Raleigh’s wheels and components.
Questions:
1. How can I tell if it’s possible to go to an 8 speed cassette with my freehub (Shimano 105)?
2. Can I use a Suntour 6 speed front derailer a Shimano 105 rear derailer and Shimano 7/8 speed cassette?
3. Can I use the Maruishi's cranks (Sakae brand) with a Shimano cassette?
4. Can I use a Suntour 6 speed front derailer with a Shimano 7/8 speed cassette?
5. Do you see any other issues with this frame transplant?
baltazar is offline  
Old 05-08-04, 12:35 AM
  #2  
Brian Ratliff
Senior Member
 
Brian Ratliff's Avatar
 
Join Date: May 2002
Location: Near Portland, OR
Posts: 10,113

Bikes: Three road bikes. Two track bikes.

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 39 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Hey, try this for your cassette. Go and get a 9 speed shifter for the rear and a 9 speed, HG70 shimano cassette. It is important that you get the HG70 because you can unscrew the screws that hold the cog set together and take it appart. Now you take the cassette appart and remove the top (largest number of teeth) cog and spacer and install on the 7 speed hub. Now you have 8 speeds with just the the cost of new down tube shifters (about $30). I did this on my commuter and finally have an even range between my 13 and 23 tooth cogs. Be sure to use 9 speed chain and components, and be careful to set the upper limit screw of the derailler so you cannot over-shift into your wheel.

People can correct me if I am wrong, but I think this is the only way to get 8 speeds on a 7 speed hub.

As for the other questions:
2. Yes, the front derailler is pretty flexable, especially if you are using down-tube shifters.

3. Any crank set will work with any rear cassette. There may be some slight problems using 9 speed chain with 7 speed chain rings because the chain can possibly slip and get stuck between rings, but usually this is not a problem.

4. Already got this unless you meant the rear derailler, in which case it is not wise to mix a 6 speed rear derailler with a 7 or 8 speed cassette. It may not have the range.

5. It sounds very much like the rebuild I did with my commuter a couple of years ago. Be prepared to experiment a little and experience a little frustration with parts not going together properly, but by all means have at it. Once it is done, the feeling of accomplishment is great.

Two thing actually I have thought of where you may have a little trouble. One is in the frame spacing for the rear wheel. Somewhere right around the age of your Raleigh, the bike industry switched from a 125mm spacing to a 130mm. Don't worry though. Simply pull the stays apart when you install the wheel. The other is the front derailler. If the front derailler is of the clamp on type, then chances are you will not be able to use the front derailler from the Raleigh on the Maruishi.

Hope this helps.

BR
__________________
Cat 2 Track, Cat 3 Road.
"If you’re new enough [to racing] that you would ask such question, then i would hazard a guess that if you just made up a workout that sounded hard to do, and did it, you’d probably get faster." --the tiniest sprinter
Brian Ratliff is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Bikepacker67
Advocacy & Safety
4
06-17-06 06:13 PM
concernicus
Singlespeed & Fixed Gear
1
03-02-06 08:28 PM
swaco
Road Cycling
1
12-30-04 11:51 PM
MoshB
BMX
0
03-20-02 12:43 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.