Spidertrax Pro Series 60 Knuckles (4") Bar 4130 Heat Treated Chrome Moly

4130 Heat Treated Chrome Moly Housing

6"  (551 x 160 x 218mm) MOUNTING BOLT PATTERN 10" x 4

One Year Warranty

CNC machining allows us even finer precision

& all hardware needed for the assembly

Spidertrax Pro Series 60 Knuckles (4") Bar 4130 Heat Treated Chrome MolyLight as always. Stronger than ever. Spidertrax introduced their first fabricated knuckle over 5 years ago. Today, the Pro Series 60 Knuckle takes professional rock racers to an all new level. Better materials, bigger bearings, & larger bolts make this the strongest knuckle yet. All while holding the same compact & lightweight design philosophy you have come to expect. This Pro Series Knuckle is designed to install on a Spider 9 Housings w 4" OD