• More stability, higherRPM, longer life and more horsepower
• Requires less spring pressure for better valve control
• Reduces the weight of the spring and allows a smaller, lighter retainer
• Handles stress more efficiently
• Increases harmonic resistance for greater stability
• Eliminates damaging harmonics
• Increases high RPM horsepower and durability
• Places the maximum area of the wire at the point of highest stress
• Handles stress more efficiently
• Allows better heat dissipation for longer life of the spring

Spring O.D: Top 1.204" / Bottom 1.585"
Spring I.D:Top .721" / Bottom 1.102"
Seat Load: 150 @ 1.925"
OpenLoad: 410 @ 1.275"
Coil Bind: 1.225"
Rate (LBS/In): 400 lbs
Max Lift: .650"