The more you know :) Jackie modifies his Arch if Nomad V talks to him about it during the Maelstrom mission. After that his bike is faster and has 4 exhausts. The
How to get all FREE Vehicles in Cyberpunk 2077 (Guide and Locations) - VULKK.com
Cyberpunk 2077: How to Get Jackie's Motorcycle
Jackie's Bike changes if you tell him to fix it (Nomad background) : r/LowSodiumCyberpunk
Cyberpunk 2077: How To Get Jackie's Bike & Complete The Heroes Side Job
Cyberpunk 2077: Jackie's ARCH - Orcz.com, The Video Games Wiki