The aithein disc frame is made from kinesium tubing and shaped using spf super plastic forming technique to fine tune the tubing for a balance of stiffness and strength at the lowest possible weight the seat tube at the core of the frame is optimised for lateral stiffness for maximum power transfer to get the benefits from extra disc brake power kinesis have provided more tyre clearance up to 28mm for more rubber on the road for more grip less rolling resistance and a little more comfort