You will need to take both the cranks off (crank extractor reqd.) and measure the external dimension of the bare BB spindle.
If you've got that far you might want to borrow the right tool to take the bottom bracket out and measurements will be written on it.
Then you might as well buy and fit the new bottom bracket. :-)
You will need to take both the cranks off (crank extractor reqd.) and measure the external dimension of the bare BB spindle.
If you've got that far you might want to borrow the right tool to take the bottom bracket out and measurements will be written on it.
Then you might as well buy and fit the new bottom bracket. :-)