Pinion gear choice comes down to two things: how much wear you need it to take, and how much weight you’re willing to trade off for it. Koswork covers both with two lines built for 5mm shaft motors: the KOS03006 Mod 1 Lightweight Hardened Steel Pinion Gear in 13T through 18T, and the KOS03009 Mod […]
Every nitro racer knows the pit routine down to the second — pull the car in, top off the tank, get back on the track before the heat cools down. That’s exactly the moment where a good fuel bottle earns its keep, and it’s why Koswork builds a complete lineup around it: the KOS09002 Gold […]
Mini RC cars are easy to bring anywhere, but that doesn’t mean a grocery bag or a backpack pocket is the right way to carry them. The charger, the transmitter, spare batteries, tools — there’s more to it than just the car. Koswork makes three bags designed around mini car use, each covering a slightly […]
The Mini-Z is small enough to take anywhere, but that also means it’s easy to toss into a bag without thinking and end up with a damaged car or a cracked transmitter. Koswork makes two carrying solutions specifically for the Kyosho Mini-Z and Mini-Z 4×4 RTR — one soft, one hard — both designed around […]
Putting together a proper RC tool set from scratch takes more time than most people expect — finding tools that are the right size, the right quality, and actually work well together is a process. Koswork has done that work already. The KOS13216 and KOS13217 are complete tool sets built around the same lightweight composite […]
LiPo fires don’t give you much warning, and a standard bag or box isn’t built to contain one. A proper LiPo charging case is designed to keep the heat and flame inside if something goes wrong — not just protect the battery from bumps, but actually contain a fire event. Koswork makes two sizes, both […]
The RC10 uses standard inch sizes throughout, and having the right set of hex wrenches and nut drivers on hand makes the difference between a smooth build session and constantly hunting for the right tool. Koswork makes two versions of the same 7-piece set — identical tips, same sizes, same compatibility with the RC10 — […]
Most RC car bags come with a large drawer for the car that does the job well enough in normal use. But when you’re moving between venues, stacking gear, or just want better protection for the car in transit, a hard case is a different level. Koswork makes two carrying hard cases — one for […]
Getting a tire to stay glued properly isn’t just about the glue. The bands you use while the glue cures matter just as much — if the tire isn’t held firmly against the rim during that window, you’ll end up with gaps, lifted edges, or a bond that comes apart under load mid-race. Koswork makes […]
Hauler bags are one of those things RC racers don’t think about until they’ve had a bad one. Drawers that won’t stay shut, a frame that flexes under load, wheels that catch on every crack in the parking lot — you notice every flaw when you’re hauling gear from the car to the pit at […]
