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


Go Back   > >

Hybrid Bicycles Where else would you go to discuss these fun, versatile bikes?

User Tag List

Reply
 
Thread Tools Search this Thread
Old 07-06-12, 08:27 PM   #1
brianblackheart
Junior Member
Thread Starter
 
Join Date: May 2012
Bikes:
Posts: 19
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
bottom bracket question

I have taken out my bottom bracket to as i am servicing my bike now again and, have never done that since i owned it. Question is i pulled it and it said it is a modus 1.37 x 24t 121.5 mm left to right. what would be a good upgrade to this? I figure i might as well replace it while i have it out. any suggestions?
brianblackheart is offline   Reply With Quote
Old 07-06-12, 08:57 PM   #2
desertdork
just pokin' along
 
desertdork's Avatar
 
Join Date: Aug 2008
Location: the desert
Bikes:
Posts: 1,073
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I don't know where your Modus (VP?) BB falls in the quality range, but suspect its somewhere in the low to mid. If it's running smooth, quiet and without play, there is no need to replace it.

Square taper cartridges today are still available in categories that might best be called cruddy, plenty good, and quite expensive. Cruddy would include the very cheaply made units that come as original equipment on very low end bikes from dept stores and the like. Plenty good would include Shimano UN54 & UN55, Sugino, IRD and some others. Quite expensive would be the likes of Phil, White Ind, and SKF; these run up to and well over $100.

Plenty good is what I'd recommend. Shimano UN54/55 are readily available everywhere and have an excellent reputation. They're not particularly light, but the bearings and seals are excellent. They run $25-35, and are about as good as you'll find this side of $100+.

Not aware of any 121.5mm cartridge spindles. But 122 is a common size and will function identically. You need to choose the correct shell width, 68 or 73.

Last edited by desertdork; 07-06-12 at 09:22 PM. Reason: Posted before finished
desertdork is offline   Reply With Quote
Old 07-06-12, 09:15 PM   #3
Sixty Fiver
Bicycle Repair Man !!!
 
Sixty Fiver's Avatar
 
Join Date: Sep 2007
Location: YEG
Bikes: See my sig...
Posts: 27,264
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
A lot of these entry to mid level cartridge bottom brackets perform quite well for very little $$$... VP seems best known for making pedals and was not aware they were offering bottom brackets but if it works smoothly and has no play just keep using it and upgrade it when it needs to be upgraded.
Sixty Fiver 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 02:53 PM.