You have no idea how much i wanted to find this script, i saw it from nopixel and i was amazed.
I am not about to use target script for only this one, i will try to make a command for picking up, it will be a waste having a whole target script only for picking up a bike.
You have to edit the client.lua where you see this.
Change it to
if GetEntityModel(vehicle) == GetHashKey("bmx") or GetEntityModel(vehicle) == GetHashKey("scorcher") or GetEntityModel(vehicle) == GetHashKey("cruiser") or GetEntityModel(vehicle) == GetHashKey("fixter") or GetEntityModel(vehicle) == GetHashKey("tribike") or GetEntityModel(vehicle) == GetHashKey("tribike2") or GetEntityModel(vehicle) == GetHashKey("tribike3") then