No nonsense unadulterated speedthats what our s works stumpjumper di2 brings to the table its made from our finest carbon fibre and its built off of our revolutionary xc 29 geometry for explosive power incredible climbing prowess and nimble handling at the rear the hardtail design with razor thin seatstays blends maximum pedalling efficiency with added compliance add to this our brain technology at the rockshox rs 1 fork that differentiates between rider and trail input to stay firm