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platypus
I am a subscriber to the Lee Likes Bikes /Ride Logic school of thought re mtb fit.
Am more and more coming to the conclusion that my Bird Aether is too long and low. LLB has the notion of RAD rider area distance (from bb to the centre line between grips) SHO steerer hand offset (how far off the steerer tube axis the centre line between grips is) and the RAAD rider area angle in degrees - the angle from bb to centre line between grips. I have got the RAD perfect and the SHO to 1.2 (his view is anything within +/-10mm is great but it means the RAAD is 55degrees. His view is xc bike should be 56degrees, trail bike 58 and downhill 60. So effectively the BIrd is set up as a super fast xc bike! But it should really have a higher front end.
I think I am going to try and find a second hand bird frame one size smaller and swap parts over. Currently If I try to raise the bars the RAD becomes too long and the only way to mitigate this would be to find bars with a huge sweep back but then the bars will be behind the steering axle with a negative value SHO
So it appears I need to swap out to a smaller frame at which point I can achieve near perfect RAAD SHO and RAD.
So if I can find someone selling a secondhand frame how much should it be. Brand new the aether 9c is £1740 what kind of ballpark should I look to pay for a second hand one (and then this will also give me an idea for the resale value of my own frame)