you're other frames Will have had BB rise, probably 50 as thats more ''the norm'' for older frames. The GU has pretty much the same geo eas the echo yet with the higher BB, I would and did go for a GU, one of the reasons Was because I preferred the looks of the GU but also 'because it has a higher BB, makes it seem a lot 'flickier' and IMO a lot nicer. Whack a echo or t-master stem on and the GU will feel awesome