ProTaper PT020202 Self-Engaged Launch Assist (SELA) BlackProTaper's groundbreaking Self Engaged Launch Assist (SELA) features a patent pending self engaged twist dial that allows riders to easily set it up independently. This gives them the freedom to practice starts and line up for races without external assistance. SELA compresses the motorcycles front suspension momentarily during the start, reducing the likelihood of wheelies under acceleration. This enhances rear wheel traction, enabling the rider to