Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Cadence sensor mounting

Notices
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.

Cadence sensor mounting

Old 07-20-04, 08:33 PM
  #1  
You're just a fat kid
Thread Starter
 
Moistfly's Avatar
 
Join Date: May 2004
Location: Holladay, Utah
Posts: 389

Bikes: Felt 45 w/ speedplay x3 pedals

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Cadence sensor mounting

So i'm trying to install my cadence sensor, easy enough, the problem is, the magnet that mounts to the crank attaches with a flat strip of adhesive, but my crank is concave on the chainstay side and quite curved. Just wondering what the best method of attachment is going to be? I was thinking epoxy but will that bind well enough to carbon fibre? It seems like it ought to but i'm not an expert and want to make sure I do it right the first time.
Moistfly is offline  
Old 07-21-04, 05:31 AM
  #2  
Senior Member
 
Join Date: Dec 2003
Posts: 1,295
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I had to use plastic ties and a good brand of electrical tape on mine. I replace the tape about once a year. I also had to put a thick-walled section of plastic tubing on my chainstay to get the pick-up close enough to the magnet. The only problem with Epoxy is that you may have to destroy the magnet and damage the finish of the crank to remove it. Actually, you should sand both bonding surfaces (then clean with Acetone) to use Epoxy, so you'll dull the finish anyhow.

Al
Al.canoe is offline  
Old 07-21-04, 02:43 PM
  #3  
Senior Member
 
Boomer's Avatar
 
Join Date: Apr 2004
Location: Bay Area, CA
Posts: 153

Bikes: Scattante R650 road bike.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
The Cateye magnet has a gap for the plastic tie to threat thru. The pastic tie secures mine quite well.
Boomer is offline  
Old 07-21-04, 08:23 PM
  #4  
Senior Member
 
Join Date: Dec 2003
Posts: 1,295
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I forgot to comment on the carbon fiber/Epoxy bonding. I know that carbon fiber canoes are made with Epoxy. I would think that carbon fiber bikes are too, but I don't really know. If it is made with Epoxy, then Epoxy will bond very well with cured or hardened Epoxy. If not, there's still a 90% chance you'll get a good mechanical bond if you roughen the surfaces with like 60 grit sandpaper.

There are different formulations of Epoxy. The faster curing versions, like you find in the double tubes, give a much weaker bond than the slower curing types like West System. The stuff is expensive.

Al
Al.canoe is offline  
Old 07-22-04, 07:00 AM
  #5  
Senior Member
 
GreenFix's Avatar
 
Join Date: Nov 2003
Posts: 383

Bikes: Specialized Allez Sport

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Moistfly
So i'm trying to install my cadence sensor, easy enough, the problem is, the magnet that mounts to the crank attaches with a flat strip of adhesive, but my crank is concave on the chainstay side and quite curved. Just wondering what the best method of attachment is going to be? I was thinking epoxy but will that bind well enough to carbon fibre? It seems like it ought to but i'm not an expert and want to make sure I do it right the first time.
Iused a zip tie that came with my magnet, but the magnet still slid down from time to time, so I put a small dab of slicone on the back of the magnet. I have aluminum cranks.

edit: Sorry about the run-on sentence.
GreenFix is offline  
Old 07-22-04, 11:19 AM
  #6  
You're just a fat kid
Thread Starter
 
Moistfly's Avatar
 
Join Date: May 2004
Location: Holladay, Utah
Posts: 389

Bikes: Felt 45 w/ speedplay x3 pedals

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Thanks for the input guys. I really appreciate it
Moistfly is offline  

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.