Two-stage screw operated telescopic body. Hexagonal drive size 22 mm. Can be used with 1/2 inch electric or pneumatic impact wrench. Tested to 100,000 N. Spacer allowing to place the lower fork in two positions: allows for maximum travel on springs with few coils. Can be fitted with all U.89 forks. Travel: 235 mm. Compressed length: 305 mm. Extended length: 540 mm. Diameter: 70 mm. Weight: 5.100 kg.