We have done bike tour from Lahore-Islamabad-Batkhela-Dir-Chitral-Shandur-Gulgit-Rakaposhi-Chillas-Dassu-Besham-Islamabad-Lahore, recently in April, 2018. No body had checked any papers except CNIC for entry purposes. But for safe side, Bike Original Registration Book and Original Driving Licence must be with you. Atleast CNIC is must.