ProTaper's revolutionary Self-Engaged Launch Assist (SELA) solves a problem faced by all motocross racers, no matter their skill level: setting a start device alone is awkward at best and impossible at worst. With its patent-pending self-engaged twist dial, SELA can be easily set without any assistance, giving riders the freedom to practice starts and line up for races by themselves.
 
Patent-pending self-engaged twist dial enables easy, unassisted operation
Dual-hinged receiver ring with variable clamping diameter for quick installation and precise fit
Forged aluminum alloy construction optimizes weight savings, strength, and durability
Hard-anodized moving parts maximize resistance to corrosion and wear
Durable laser-etched graphics, including engagement confirmation markings
Includes all parts and hardware necessary for a wide range of applications