True Fitness CS4 Owner's Manual page 53

Appendix D
Maximum speed: CS 4 & 6: 12 mph. CS 8: 15 mph
Specifications
Incline range: CS 4 & 6: 0-15%. CS 8: -3 to 18%
Drive motor: 5 hp AC Max Drive.
Treadbelt area: 23 x 63
Treadmill Weight: 505 pounds
Maximum user weight: 400 pounds.
Note: Specifications and features subject to change without
notice.
56
CS Treadmill Owner's Guide