How can I find out what the seat post size is? All road bicycles through to 2005 are 27.2 All road bicycles 06 are 31.6 Exceptions to this are: Atreus -31.6 C110- 27.2 Mountain bike post through 02 are 27.2 03 XLM is 28.6 04-06 are 31.6 How can I find out what the seat post size is? I have an integrated headtube and need to replace the bearing inserts. How can I do this? I have an integrated headtube what headset choices do I have? My bike has the pressed in bottom bracket, can I get it updated to accept newer style cranks and bottom brackets? My bike has the pressed in bottom bracket, where can I get parts? Where can I find Merlin clothing and accessories? How can I find out what diameter my front derailleur clamp is? What fork rake does my bike have? Where can I get new decals for my Merlin? I have an older Merlin, could you tell me what year it is?