gemini octalink spindle length...

phils928

Hello I am desperately hoping that one of you geniuses can help... I need to replace the bottom bracket on my old CannondaleGemini 900.. So far simples... Buy a new one fit it problem is the bike is in Portugal at my holiday home and I live in UK where I am now....I intended to buy one here chuck it in with my luggage and change it there... The problem is although I know its a 68mm octalink english thread I dont know the spindle length...could any one take a stab at what it would be its a tripple chainring shimano crank set I do have a couple of pics but no idea how to post them .... Yours a hopefull idiot..

cooldad

Depends on the specific crankset. And the chainline you want.

http://sheldonbrown.com/bbsize.html

phils928

Hi thanks so much for your reply I dont know the exact crank model but I do have a few photos just dont know how to post them...

cooldad

In the FAQs. Upload to a hosting site like Flickr and put the image url between Img tags using the Img button in 'Full Editor'.

faq.php#f3r3

The Rookie

Research suggests it was fitted with a Truvative Firex crank - are you sure it's Shimano?

Assuming its the Firex, since SRAM bought Truvativ the old manuals aren't on their website.

Truvativ however have traditionally used 113mm axle widths (in all internal bearing applications, including ST and ISIS) so I'd lay odds on it being that.

cooldad

That would give a 47.5mm chainline with Shimano as well, so probably close enough whatever it is.