Integy MSR6 Piggyback Shock Set is constructed of aluminum. Threaded aluminum shock bodies. Piggyback shock oil reservoir. Knurled spring rate adjuster. Red and gun metal in color. Aluminum lower spring retainer. Fully assembled. 2-Hole shock pistons. Nylon ball ends w/metal ball.

INCLUDES: Four Fully Assembled Piggyback Shocks
Four Blue Hard Springs
Four Red Medium Springs
Four Shock Mounting Bushings
Four 4-Hole Shock Pistons
Four Foam Compression Pads

Shock Oil (20wt-35wt Recommended)

Length-
Shock-
Compressed: 2.96" (75.18mm) (Hole to Hole: 2.60")
Uncompressed: 3.89" (98.80mm) (Hole to Hole: 3.46")
Spring-
Compressed: 0.35" (8.89mm)
Uncrompressed: 1.64" (41.65mm)
Diameter-
Shock-
Shock Body: 0.56" (14.24mm)
Shock Shaft:0.15" (3.81mm)
Spring-
Spring Overall: 0.80" (20.32mm)
Wire Diameter: 0.06" (1.53mm)
Weight-
Shock Overall: 1.23oz (35g) Without Oil