Genuine Keiser replacement pop pin assembly used to secure the seat height, seat fore/aft position and handlebar height adjustments on Keiser M Series indoor cycling bikes. Ideal replacement for a worn, damaged or missing adjustment pin. Features * Genuine Keiser part * Brand new, unused condition * Complete plunger pin and knob assembly * Used to lock adjustment positions securely in place * Suitable for Keiser M Series indoor cycles * Black finish Compatible With * Keiser M3 * Keiser M3i * Keiser M3i lite Condition * Brand new * Never installed * Genuine spare part Included * 1 x Genuine Keiser pop pin / plunger knob assembly Please check compatibility with your bike before purchasing.