This rack fits wheel sizes from 12" to 29" and tire widths from 23C to 3.0". It features a weather-resistant steel coating and a modular design for customizable storage. The dimensions are 59''L x 14.75''W x 14''H for 4 bikes and 70''L x 14.75''W x 14''H for 5 bikes. The price drops from $49.99 to $29.99. Shipping is free for Prime members.