When every detail counts - even marginal gains - precision means performance. Achieve a position dialed to the millimeter with extensions designed and built exclusively for you. Nothing here is off the shelf: we work directly with you to create extensions and arm rests tailored to your fit, your biomechanics, and your riding style. Based on your position and body shape, BMC Impec Lab engineers develop the geometry, profile, and interface of your extensions to integrate seamlessly with the Timemachine Mpc. base bar. Each component is crafted from 3D printed alloy and finished with a sleek machined black coating. Additionally, we refine every detail to your preference - drivetrain controls, armrest padding, and computer mount options are all customizable. The price indicated is a starting point; the final cost will depend on your fit data and specific requirements. Lead time varies for each project, and our engineers will communicate these details individually.