Finally got my paws on a 5500......

[proflexGB]

Oh I see Jedoaks,  duh!, I got the wrong end of the stick there, I will e-mail the pics to the K2 guys today.

Thanks Roentgenranger, I will be very careful, I need a set of ISIS cranks to finish building it up so I won't be riding it for a while, I am gonna get all the facts together first from the experts and see if there is a way of testing it to see how deep the crack goes or if it's just surface de-lamination.

I will investigate over the next couple of weeks, the 4000 is going so well now that there is no rush.

Thanks again fopr all the help guys, cheers.