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


BB and crankset change
#1
I have a old murray eliminator that I want to change the 1 pc crankset to a 3 pc, 1 can that be done an 2 what size would BB be if I had to get new one for crankset and spindle.
  Reply
#2
yes; and it depends on the crank set you choose and the width of your frame.

This one uses cone style bearings - which are included: http://www.amazon.com/Pyramid-Piece-Bottom-Bracket-Conversion/dp/B000AO9O12/

These require a separate BB:
http://www.amazon.com/BB-Conversion-Cups-Action-American-euro/dp/B003Y81FUO/
http://www.amazon.com/SBS-Aluminum-Bottom-Bracket-Conversion/dp/B000C1251E/
http://www.amazon.com/BB-Conversion-Bp-American-To-Euro/dp/B001G8TSPS/
Nigel
  Reply
#3
Hey Nigel I noticed the above (1st link you put ) is 130mm?
Good maintenance to your Bike, can make it like the wheels are, true and smooth!
  Reply
#4
Hi Bill;

I had not noticed that......

From the appearance of it, the axle could probably be replaced with one of the many others Pyramid catalogues.
Nigel
  Reply
#5
Would my murray have an american bb or mid?
  Reply
#6
(06-18-2011, 05:24 PM)Etmiller11 Wrote:  Would my murray have an american bb or mid?

1 pc are generally called American. Have not heard of "mid" before. Where did you see that term?

I'd go with the SBS conversion. You still have to pick a BB, which will depend on the crankset you choose.

If you pick the Pyramid kit, you may have to change the axle depending on the crankset you choose.
Nigel
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post

Forum Jump:

[-]
10 Latest Posts
Post-Ride Nutrition
Today 02:06 AM
🚴‍♂️ Saddle Up for the Belgian Waffle Ri...
Today 02:03 AM
Pre Ride Food Intake
Today 12:14 AM
SAVA Explorer 6061?
Yesterday 03:31 PM
braking by reversing the pedals
Yesterday 01:00 PM
Zwift v Spin v Wahoo
04-01-2025 05:59 PM
Have you Ever Tried an Electric Bike?
04-01-2025 05:07 PM
Good Morning from SW Ohio
04-01-2025 07:32 AM
(So California) PV Dr to be closed to bi...
03-31-2025 09:14 PM
Tubeless vs. tubes: What are the pros an...
03-31-2025 08:28 AM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. GirishH
22 posts
no avatar 2. Flowrider
19 posts
no avatar 3. meamoantonio
12 posts
no avatar 4. Jake1
11 posts
no avatar 5. enkei
9 posts