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-   -   Bottom Bracket adapter (https://www.bikeforums.net/classic-vintage/337752-bottom-bracket-adapter.html)

stringbreaker 08-27-07 09:34 PM

Bottom Bracket adapter
 
I recieved the bottom bracket adapter from Harris Cyclery today and as I looked at it I wondered to myself which side goes where. Has anyone used this think? According to Sheldon the left handed internal thread go to the right which I assume is the chain ring side. I didn't realize the threads were opposite. Oh well its gonna be cool

Dr.Deltron 08-27-07 11:45 PM


Originally Posted by stringbreaker (Post 5157961)
Has anyone used this thing?

Not for many moons! :p


Originally Posted by stringbreaker (Post 5157961)
= According to Sheldon the left handed internal thread go to the right which I assume is the chain ring side.

Sheldon is correct (as always) and your assumption is correct also!


Originally Posted by stringbreaker (Post 5157961)
I didn't realize the threads were opposite. Oh well its gonna be cool

They are. And you're right, it is!
(gonna be coool) :D

pastorbobnlnh 08-28-07 03:35 AM

The FMF adapter I used on my Continental installed with the three allen head screws on the left, non drive side. I recently picked up a used, non-FMF adapter (with no instructions), and installed it the same way. But after installing the cartridge BB this past weekend, I believe this adapter should be flipped with the allen heads on the drive side. The BB threaded in--- in the opposite direction from the rotation of the cranks. So would pedal action slowly losen the BB? Another difference is that the used one is narrower than the FMF, so the lip of the Shimano UN54 BB does not thread up tight to the side of the adapter. I'll figure this all out eventually!

Best of luck on yours Stringbreaker. What type of crankset do you plan to use?

stringbreaker 08-28-07 06:21 AM

Not sure what I'm going to use. I have an older but three piece Shwinn item but I'm not too enamored with it I would like to use Shimano modern stuff. For a BB I want to go with Shimano. Any suggestions are greatly appreciated. I'm trying to figure out the length of BB to use but there again. I'm getting more confused. Chainline and all that stuff. I'll take suggestions again


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