Parts If you have questions about parts, please get in touch with us at info@runners-bike.com parts Classic Wooden Bike Back Axle $13.00 parts Classic Wooden Bike Front Axle $13.00 parts Classic Wooden Runners Bike Wheel 12.5″ $25.00 parts Exchange tube and tire for 12″ wheels $19.00 parts Extension Seats (+ 3 cm) and Replacement Seats $20.00 parts Junior Bike Back Axle $13.00 parts Junior Bike Front Axle $13.00 parts Junior Bike Wheel 7″ $15.00 parts PushMee Pneumatic Wheel Upgrade Pair 12″ Do not work with the discontinued Speeders A model $49.95
