Hi Burket, sorry for the delay - I was on tour several days. First let me say: When the python building process is finished, the real hard work just begins. This is not a recumbent, that you can ride after several tries. The steering principle is similar to other center- steered recumbents like the airbike or flevo, but it is still different. It is harder to learn, regarding the stability, but easier regarding the seat height. Nonetheless it is possible for everyone who has the absolute will to learn it. The price is high but the benefits will be much higher. Some remarks to your bike: Steering angle of 65 is good. The pivot solution with the head tube is also ok. The front part might not be strong enough to stand the stress of forceful pedalling. As well I would not trust the rear part with only one tube and no suspension. The seat inclination could have some degrees more backwards. Additionally a front fender is of great use to protect your legs. If the frame and seat construction has not too much flex or slack, your bike should be rideable with enough practice. The stability of the seat back is very important because it is part of the steering process. As reality shows, it takes about three prototypes to gain a good homebuilt recumbent ;-) Regards from Jürgen. ============================================================ This is the Python Mailinglist at freelists.org Listmaster: Juergen Mages jmages@xxxxxx ============================================================