The key difference between Burley Dash® bike seat models is the mounting and installation method. Burley’s Dash® series includes the Dash RM, Dash RM MIK HD, Dash FM and Dash X FM. Each model offers specific mounting options like frame mount (FM), rack mount (RM), or MIK HD compatibility. All models feature adjustable footrests, ergonomic seating, and easy installation tailored to different bike setups.