JOES Junior Sprint Jacobs Ladders are strong and lightweight. Built from 6061-T6 Aluminum. Our bolt on part includes everything you need right out of the package. Short: 8½” between centers. Long: 10¼” between centers. Straps 4″ between centers. JOES JR Chassis uses the short jacobs ladder.

Birdcage Hole = ¼”

Ladder Straps Holes = ⅜”