FOLD Single Spring

Yellow (Light Resistance):

• Initial Tension: 1.7 kg (3.74 lbs)
• Spring Rate (Mid-level Tension): 3.6 kg (7.92 lbs)
• Max Tension: 11.9 kg (26 lbs)
• Length: 470 mm
• Coil Diameter: 24.7 mm

Green (Medium Resistance):

• Initial Tension: 2.6 kg (5.72 lbs)
• Spring Rate (Mid-level Tension): 8.2 kg (18.04 lbs)
• Max Tension: 19.3 kg (42 lbs)Length: 470 mm
• Coil Diameter: 26.4 mm

Red (Heavy Resistance):

• Initial Tension: 19.6 kg (43.12 lbs)
• Spring Rate (Mid-level Tension): 21.3 kg (47 lbs)
• Max Tension: 29.7 kg (65 lbs)Length: 370 mm
• Coil Diameter: 29.2 mm