Spidertrax Pro Series 60 Knuckles with "mid" steer arms (3.5") winner is the reason why

is the reason why

Lightweight – Precision CNC machined 7000 series Military Grade Aluminum

Whether it's on the street

If you're building a complete Spider 9

Proper installation and consistent use of restraint system is critical to your safety in event of accident

Spidertrax Pro Series 60 Knuckles with "mid" steer arms (3.5") winner is the reason whyLight 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 3 1 2" OD