Bottom bracket headscratcher

Eh up, there's a problem with my bottom bracket. I showed it to my GP but she just blushed.

I'll cut to the chase.
I picked up a second hand frame, with brand new shimano cartridge bb fitted. I was happy.
My cranks went on just dandy, but in spinning I could see (and hear) that the back of the spider was catching the chainstay. I was disgruntled.

The square taper of the BB spindle is longer on the non drive side then it is on the drive side. Ahhh, I thought, some bumbaclaart has put the BB in the wrong way round. I can sort this.

So I whip it out to find that the BB unit IS in the right way round after all. I was perplexed.

The only thing I could imagine it could be is that the spindle is in the sealed unit the wrong way round!
Is this possible/heard of...?
And, short of buying a new BB is there anything that can be done about it...?

Answers on a postcard.

pop it in backwards?

The rasclot is too long.

Backwards, i thought of that. But that would mean the unit was on the non drive side and the cup on the drive side. Not ideal.

I'm also wary of cross threading. I give it a try later. Real gentle. Real tender.

er.. your BB is too short... that's why they come in different lengths... buy a new longer one...

£1 please...

tough crowd.

https://www.lfgss.com/thread32747.html

http://www.sheldonbrown.com/gloss_bo-z.html#bottom

http://www.sheldonbrown.com/gloss_ch.html#chainline

http://www.google.co.uk/products?q=BOTTOM%20BRACKET&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&sa=N&hl=en&tab=wf

http://www.justfuckinggoogleit.com/

Better..?

Dangerous Russell, the length is correct and you might be interested to know I took my stabilizers off a couple of years ago.

What Www.justfuckinggoogleit.com couldn't explain is why the extra mil or so in length that is usually on the drive side is on the non drive side of this cartridge.

i believe its an asymmetric bb, i.e. one side is supposed to be longer.

what bb is it?

how much is the spider interferring with the chainstay? you could put a spacer between the bb and the bb shell (on the drive side, natch)

Better..?

repped.

Backwards, i thought of that. But that would mean the unit was on the non drive side and the cup on the drive side. Not ideal.

I'm also wary of cross threading. I give it a try later. Real gentle. Real tender.

and don't fucking try this, the threads are reverse to each other so you will not be able to thread them in backwards without cross threading.

Spider only scuffs the chainstay by 2mm max. It's a pretty standard Shimano 107mm.
It is asymetric yes, but I though the idea of that was to give a lil extra clearance driveside - this one gives extra clearance non drive side.

-deleted comment-

Longer BB or JIS/ISO issue.

Or get a file.

Or a hammer.

Or both.

Anglegrinder.jpg

Newbie here so please be gentle! (different topic!)

Just put 700c wheels on an old race frame and the gap between the rear wheel and centre tube is rather large!!!! Any way around this..... someone mentioned bigger tyres, will this make much difference and if so which tyres? Or do I need to fit a 27 1 1/4 wheel (on a budget!)?

Cheers

troll..

YouTube- JESUS FUCKING CHRIST!

troll..

ogre

Newbie here so please be gentle! (different topic!)

Just put 700c wheels on an old race frame and the gap between the rear wheel and centre tube is rather large!!!! Any way around this..... someone mentioned bigger tyres, will this make much difference and if so which tyres? Or do I need to fit a 27 1 1/4 wheel (on a budget!)?

Cheers

mudguards will fill that gap

and don't fucking try this, the threads are reverse to each other so you will not be able to thread them in backwards without cross threading.

on cheap shimano bbs the cups come off so this wouldn't be a problem.