Boardman Team Carbon - how to determine frame size?

[voicey]

Hi,

I recently bought a Boardman Team Carbon (our Cycle to Work is only through Halfords). It is my first road bike for about 20 years and I loved it... until my garage was broken into and it was stolen. Fortunately the insurance paid out quickly so I bought a replacement. I ordered a medium size both times but the replacement bike feels a little larger. I've looked for a size label on the frame but can't see one. Does anyone know how I can determine what size bike I now have? I wouldn't put it past the supplying shop to have cocked it up...

Cheers,
Voicey.

[fromage]

Measure from the BB (the middle of the cranks) to the top of the seat tube where the seat clamp is.

[amnesia V6]

Sizes, and how to measure them on this pdf...

http://www.boardmanbikes.com/pdf/Boardman2010_Road...

HTH

[voicey]

Thanks guys - Just been in the garage and I do have the correct size although there's an outside chance I was given a small the first time round!