The whyte 901 hardtail mountain bike 2017 has been designed to make you feel more confident in all situations with a light and durable design that39s more capable than any hardtail you39ve ever ridden made from a 6061 hydro formed t6 aluminium the frame for the 901 finds the perfect balance between weight and durability for 2017 the frame features a 1 by 11 specific frame design with a 12mm bolt through boost rear axle giving extra stiffness and increased chain clearance complete w