Ohh man i never even thought about that, i guess thats good on that case because there does seem to be more of the shorter size available i just couldn't find the 113mm length anywhere.

In terms of figuring out exactly what size I need, what am i best to do? I'll order a tool to remove my current bottom bracket to see if i can find out what size that is an use as a guide, apart from that is there anything else i can do to find an accurate measurement?

Cheers