38 CUSTOM
350 Phutthamonthon Sai 2 Soi 8, Bang Khae Nuea, Bang Khae, Bangkok 10160
38 CUSTOM works across classic motorcycle models regardless of brand. Whether you own a two-stroke Yamaha RXZ or a modern GPX Legend twin, the approach is the same: tear it down, design the build, make it the only one on the road. Order custom parts through the shop if you want a specific finish. The 38 SERVICES sister operation handles post-build maintenance when the custom work is done.
You walk into an orange building on Soi 8 off Phutthamonthon Sai 2 and the floor is workshop-grade: tool carts, engine parts stacked by the wall, bikes in various states of disassembly. This is 38 CUSTOM, a Bang Khae garage built around the idea that every classic motorcycle can be broken down and rebuilt into something that doesn't exist anywhere else.
The services list covers classic motorcycle customization, engine repair, electrical system repair, routine maintenance, and custom parts supply. The brands that cycle through most often are Yamaha RXZ 135s, GPX Legend 250-Twin and 200 models, and Ryuka Infinity 250s. The work isn't limited to those marques. If the bike is classic-era and you want a full teardown and redesign, the bench can handle it. Custom builds here follow a consistent sequence: strip the frame, assess what needs machining or replacement, design the look you want, fabricate or source the parts, then reassemble. The shop's stated approach is to make your motorcycle the only one in the world, meaning no template kits, no catalog builds. If you need a specific finish or custom-fab component that isn't stocked, order it through the shop and they integrate it into the build.
Beyond the custom work, the operation runs a sister service called 38 SERVICES that keeps finished bikes running smoothly. Post-build maintenance, system checks, and reliability work all go through that channel, so the custom bench stays focused on fabrication.
The shop is located far west in Bang Khae, off the BTS grid. Hours are Monday through Saturday, 9 AM to 6 PM. Closed Sundays. Reach them at 061-194-9419 or via Line at @38custom. Delivery and in-store pickup are both available if you need parts shipped or collected. Wi-Fi on-site if you're waiting on a diagnostic.
Book ahead if you're planning a full custom build. The teardown-and-rebuild timeline depends on parts sourcing and fabrication complexity, so the shop will walk you through the schedule once they see the bike.