LogisticsSend the bag ahead

Why this is a real question and not a fussy one. Most rental bikes on this circuit have nowhere to put anything. A 110 automatic's underseat box takes a helmet and a rain jacket and then it is full. A geared Wave has a small compartment and a hook. A naked or sport bike has nothing at all. So the bag ends up on your back or bungeed on top of the pillion seat — and a rucksack carried across six hundred kilometres of camber changes is felt in the back by the third afternoon, while a tail pack sitting high behind the rider is the thing that makes every hairpin an argument with the bike.

The shape that works is two bags. A small one that stays with you — documents, water, waterproofs, tools, phone, and anything medical. A larger one that leapfrogs ahead and is waiting in the room.

Two ways to leapfrog it.

By post. Thailand Post has a counter in every overnight town on this circuit except two. Parcels go from the town you are leaving to the town you are arriving in. Cheapest of the options, slowest, and bound by government office hours.

By bus. This is the one most people do not think of, and on this route it is the better answer. The minibuses and coaches that run Chiang Mai–Pai–Mae Hong Son and Chiang Mai–Hot–Mae Sariang–Mae Hong Son carry parcels on the same runs that carry passengers: you hand the bag in at the operator's counter, it rides in the hold, and it is collected at the destination office. Tradition holds — this is ordinary and widely used across Thailand, and the crucial thing about it here is that the bus is going exactly where you are going, on the same day. It is the only method as fast as you are.

Where it can land. Counted from OpenStreetMap on the harvest date: Chiang Mai, Mae Malai, Pai, Soppong, Mae Hong Son, Khun Yuam, Mae Sariang and Hot all have a post office within walking distance of the centre, and every one of those towns has a bus station. Mae La Noi has nothing mapped at all, and Mae Chaem has a bus office but no post office — if your route sleeps at Mae La Noi, that night's bag rides with you. The table on the baggage page lists each one.

What actually goes wrong. A parcel needs a real address and a person willing to sign for it, so the guesthouse has to agree in advance to hold a bag for a guest who has not arrived. Collection usually needs the ID the parcel was addressed to. Upcountry post offices keep government hours and close at lunch and at weekends, so a parcel arriving Saturday sits until Monday. And soft luggage survives being stacked; a paper bag does not.

Who runs the buses you would be using. OpenStreetMap tags the operator at the Mae Malai stop and at the stop above Soppong as Prempracha Transport, and gives Pai's bus station the Thai name เปรมประชาขนส่ง — Prempracha Transport. That is the northern leg: Chiang Mai, Mae Malai, Pai, Soppong, Mae Hong Son, which is the clockwise route. Mae Hong Son, Khun Yuam and Mae Sariang all have their own bus stations on the southern leg. So a bag can be handed over at one end of a leg and collected at the other, on the run you are riding alongside.

The step that makes it different from the post. A posted parcel goes to an address, which means a guesthouse has to agree in advance to receive a bag for a guest who has not arrived. A bus parcel goes to the operator's counter at the destination bus station, and you collect it yourself when you get to town. Nobody else has to agree to anything. Inference — on a route where you are arriving in a different town every evening, that is the simpler arrangement by a distance.

What you are actually handing over. A soft bag, closed, with the destination and a phone number on it. It goes in the luggage hold with the passengers' bags. It is not tracked by an app; it is on a named departure, and it arrives when that bus arrives.

Tradition holds — the procedure is ordinary and it goes like this. Every step is what this service normally involves; none of it is a quoted policy, and prices, cut-off times and what any given operator will accept are not on this disk.

1. The operator's counter at the bus station, not a parcel shop. It is the same window that sells tickets for the route.

2. The words. ฝากของ — fàak khǎwng — is the everyday phrase: to entrust goods. ส่งพัสดุ — sòng phátsàdù — is the formal one, to send a parcel. Then the destination: ฝากของไปแม่ฮ่องสอน — send this to Mae Hong Son.

3. The details. Destination town, the name of whoever is collecting, and a phone number that works in Thailand, with the sender's name and number too.

4. The fee and the slip. The fee is usually paid by the sender, at the origin, by weight or size. The receipt — ใบรับของ — carries the number that matters.

5. The arrival time. ถึงกี่โมง — thǔeng kìi moong — what time does it arrive. It travels on a specific departure, so the answer is a time, not an estimate.

6. Collection. At the destination bus station, at that operator's counter, with the slip and a passport. มารับของ — maa ráp khǎwng — I have come to collect a parcel.

The cut-off. A parcel has to be at the counter before the bus goes, which is earlier than most people expect. A bag handed in in the morning arrives that evening.

Anything medical. A lost bag is a laundry problem; a lost CPAP, inhaler or insulin is a medical one, and none of them is replaceable in Khun Yuam at nine at night. A CPAP also needs mains power and a flat surface.

By post a bag takes about two days; by bus it arrives the day it is sent. A parcel is addressed to a named person at a named guesthouse, with that guesthouse's phone number on the label.

Inference — the alternative is a soft 20-litre bag strapped low across the pillion seat, with the heavy things against the tank.

Inference — the inventory, by what the shop is likely to hand you.

110–160 automatic. An underseat box that takes a helmet, or a helmet and a thin jacket, and nothing more. A hook in the legshield. A flat footwell in front of you, which is the only real space on the bike and the best place on it for weight — low and forward.

Geared underbone, 110–150. A small compartment, a hook, and a rear rack on many of them. The rack is the useful part: a soft bag strapped flat to a rack sits lower than the same bag on the pillion seat.

Trail bike, 250–450. Almost nothing as standard. A tail rack if you are lucky. Long travel suspension means whatever you strap on moves more than you expect.

Midweight and big adventure. The only ones likely to have panniers or a top box, and the only ones where the answer is genuinely "put it on the bike". A top box is convenient and it is also weight high and behind the rear axle, which is exactly where a loaded descent least wants it.

Naked and sport. A pillion seat and a bungee, and that is the inventory.

Inference — which is why forwarding the main bag is not a luxury on this particular ride. On more than half of what gets rented in Chiang Mai there is no place to put four days of luggage that does not end up on the rider's back or standing on the bike's tail.