▎ 摘　　要

NOVELTY - Item (1) comprises a body (5) comprising a fiber composite structure incorporating at least one sensor for sensing a parameter and circuitry, where the fiber composite structure is formed of many structural layers or laminations which are formed from a sheet which is impregnated with a graphene-containing resin. USE - The item is useful as a movable item, optionally the movable item is a propelled item comprising a vehicle including a bicycle, a car, a motorbike, a train, an aircraft or a wheelchair, or a walking aid including a walking frame, where the propelled item is a self-propelled item which is propelled by a user, or propelled by a prime mover, optionally an electric motor or a combustion engine (all claimed). ADVANTAGE - The item utilizes the fiber composite structure which incorporates many adaptive elements formed of a structurally-adaptive material with a defined stiffness, resilience and/or shock absorbance corresponding to the control input. DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of system. Item (1) Frame (3) Body (5) Front wheel support (7) Pedal assembly (15)