bottom bracket for 05' TCR
 

...hello, I'm building a new TCR and I'm just wondering what size BB I need to order...

thanks for your help

My '06 was english, should be the same for an '05.

Measure the width of the bottom bracket shell. If it's 68 or 73mm, that also indicates English threading. The bottom bracket spindle length is determined by the crankset that you are using.

An 05 Giant TCR SHOULD have a standard sized Bottom Bracket which is 68 mm wide, English Thread. If your running a double chainring then you want a 108 mm spindle length and if you are using a tripple you want a 113 mm spindle length.

Now that's just the standard but buyer beware if this advice is wrong.

Regards, Anthony

Your bottom bracket is almost certainly 68 mm wide and standard English threading. The spindle length you need will be determined by the crank you choose and the crank's manufacturer will be very specific as to what is correct.