1.Good protection of load under all driving contions; 2.Extended lifetime of chassis because less pavement stress, 3.Chassis can be designes lighter;perfect load-distribution, spring travel up to 220mm 3.No Wheel bounce-reduced tyre wear. 4.Apply European advanced air suspension design manufacture technology; 5.Use worl famous company parts such as air bag absorber and air link;Serious air suspension types 6.Complete air suspension solutions including air circuit. Model Capacity (kg) TR (mm) Spring Center (mm) FM Center of Chmaber bracket (mm) GM Recommended tyre Ride height OBTHU020 10000 1840 920 224 385/65R22.5 200 OBTHU021 11000 1920 920 224 235/75R17.5 220 OBTHU022 12000 1840 920 224 11.00-20 250 OBTHU023 12000 2040 1280 448 385/65R22.5 275 OBTHU024 12000 2250 1280 448 12.00R20 300 OBTHM025 11000 1840 920 224 11.00-20 375 OBTHM026 12000 1840 920 224 385/65R22.5 400 OBTHM027 12000 2040 1280 448 385/65R22.5 425 OBTHM028 12000 2250 1280 448 12.00R20 475 OBTHM029 12000 2250 1280 448 12.00R20 500