Ridley Blast 29 Frame - 2015. The Ridley Blast 29 Frameset is purpose-built for the advantages 29 wheels. You'll experience increased stability, better traction and confidence-inspiring handling to deal with technical sections. Tough 6061-T6 heat-treated aluminum creates a platform with the ideal balance of stiffness and light weight for high-pedaling efficiency and quick handling. The headtube is tapered, which increases front end stiffness for greater steering precision. This Blast 29 frame has an integrated post-mount disc for the all-weather advantages and braking power discs afford.