Featuring silky smooth travel in a new lightweight design, Monarch floats through bumps even better than before, turning rugged trails into tire-gripping velvet. The chassis is lean while maintaining the durability and adjustability needed to bite off huge chunks of burly trail action and epic cross country.(includes service kit)Size 190 x 51/7.5 x 2.0Weight215g Weight based on 165 x 38, standard air can, no hardware.Configurations152 X 31, 165x38, 184x44, 190x51, 200x51, 200x57, 216x63SpringSolo Air.Spring Adjust Aluminum Shaft Material7075 Aluminium. 9mmBody MaterialForged Aluminium.Body Finish Clear hard anodized with sag gradients