Thanks for the feedback re HH track hire- looked into that - I already have four other bikes so this purchase will not be for road training or commuting but purely track racing as the OP suggests- am waiting for the stolen carbon fibre road bike for road racing and long training rides to come through from Ribble and have an alu commuter road bike already that I've replaced components on as a result of the cf one being stolen (ie will not be commuting on a cf bike again-2nd theft in 6months-despite 2 very high end dlocks and chains) so this really was a specific purchase entirely for track use and not for commuting day to day and no I do not need a Trek hybrid thanks-really useful suggestion that one- though pretty certain the Dolan pre cursa is the one I'm going for - have looked at my bike fit calculations and the 50cm not the 49cm is just right toptube wise and stem wise. RPM you are correct that TT measurement is essential especially in compact frames - compact frames, the CT -bb measurements will seem well short of the usual frame sizes, the reason they're being churned out often are that they are good for sellers and manufacturers as technically a smaller range of sizes can be 'made to fit' a wider range of people - cheaper for comps to mass produce; so this means that traditional fitting is different
Thanks for the feedback re HH track hire- looked into that - I already have four other bikes so this purchase will not be for road training or commuting but purely track racing as the OP suggests- am waiting for the stolen carbon fibre road bike for road racing and long training rides to come through from Ribble and have an alu commuter road bike already that I've replaced components on as a result of the cf one being stolen (ie will not be commuting on a cf bike again-2nd theft in 6months-despite 2 very high end dlocks and chains) so this really was a specific purchase entirely for track use and not for commuting day to day and no I do not need a Trek hybrid thanks-really useful suggestion that one- though pretty certain the Dolan pre cursa is the one I'm going for - have looked at my bike fit calculations and the 50cm not the 49cm is just right toptube wise and stem wise. RPM you are correct that TT measurement is essential especially in compact frames - compact frames, the CT -bb measurements will seem well short of the usual frame sizes, the reason they're being churned out often are that they are good for sellers and manufacturers as technically a smaller range of sizes can be 'made to fit' a wider range of people - cheaper for comps to mass produce; so this means that traditional fitting is different