bottom bracket sizing

[Fozz]

need to fit a new BB to my bike various sizes available how do i meaure for the right one ??

is it just the width of the bracket and thread ??

thank you in advance

 

[4F]

need to fit a new BB to my bike various sizes available how do i meaure for the right one ??

is it just the width of the bracket and thread ??

thank you in advance

Loads of variables, easiest way would be to take the one off you have and see what is printed on it

What bike do you have at the moment ?

 

[Fozz]

It`s a Raleigh Airlite, i`m putting a 105 groupset on it.....

 

[4F]

It`s a Raleigh Airlite, i`m putting a 105 groupset on it.....

Double, compact or triple ? The axle length will depend on this

 

[Fozz]

coo, this is good, cheers

it`s a double, 39/53

 

[4F]

Is it an 105 octolink chainset that you will be fitting ?

If so then I would say this would be your baby http://www.chainreactioncycles.com/Models.aspx?ModelID=906

68 x 109 for a double

 

[Fozz]

it is an octo, the fsa setup on it is square section.....

many thanks

 

[4F]

it is an octo, the fsa setup on it is square section.....

many thanks

No problem

By the way which part of sunny Suffolk are you from ?

 

[Fozz]

Birmingham......

but i`ve lived in Sudbury for 8 years......

thanks for the info, one last(maybe not) thing though;

i`m going from a compact to this 105 setup so i`m thinking i`ve got to get a new chain too ?