The koxx XTP is slighly different material, insted of ''ultra 6'' its ''something else 6''. It has shorter chainstays than the XTP, and alot higher BB rise (which is a downfall IMO).
You could be daft and say '' i'd rather pay extra and buy the real thing'' :angry: but you'd be paying £700 insted of something around £400, for a weaker frame.
I think this frame is designed for the urban UCI rider, that like to go big and higher, in which its alot stronger (Y). Unlike the XTP which has a more Lycra UCI approach, in which its used for comps.
Either way its a good designed frame :o"