The inspection you do at pickup matters most, but on a monthly rental the bike ages under your watch. A short weekly routine keeps small issues from becoming end-of-month arguments.
At pickup: be thorough
Work through rental-motorbike-inspection-checklist before money changes hands: photograph existing scratches, check brakes, lights, horn, tyre condition, fuel level and odometer. On a long rental, those photos are your baseline for the whole term.
Weekly: five minutes
Pick a fixed day. Check tyre pressure by hand and at a pump if convenient, look at the chain for obvious slack or rust, squeeze both brake levers for firmness, test all the lights and the horn, and glance under the bike for leaks. Note anything new in your phone log.
Around every 1,500 km
As practical owner guidance — not a manufacturer interval — periodic checks are recommended around every 1,500 km or more of use. For most daily commuters that means one mid-term visit to the shop for oil, chain and inspection, which is covered in maintenance-during-monthly-rental-hanoi.
Before any long ride
If you take a weekend trip beyond your usual routes, run the same five-minute check first and confirm your paperwork is with you. Licence requirements for riding in Vietnam are covered in the law and licences hub.
At return
Repeat the pickup inspection together with the shop: odometer, fuel, photos, condition. A clean log makes the deposit conversation short, and deposit mechanics are explained in motorbike-rental-deposit-monthly-hanoi.
The one-line version
Thorough at pickup, five minutes weekly, one shop visit around 1,500 km, and a documented return — that is the whole routine.