RC Cars
Buy and sell RC cars in Costa Rica.
A monster truck that spends the rainy season splashing down a dirt road can come out of it with rusty bearings even though its electronics are sealed, and that is worth knowing before you pay for one. Bashers, short-course trucks, rock crawlers, drift cars and the nitro buggies raced at club tracks change hands new and pre-owned, and so do the radios, LiPo packs, tyres and spare suspension arms that keep them running. On a used car, the charger, the spare spur gear and the manual still in the box say a lot about how it was looked after.
The surface you drive on picks the RC car:
monster trucks such as the Traxxas Stampede or the Arrma Granite ride high on big tyres and shrug off potholes, kerbs and the ruts of a lastre road, which is why they are the usual first hobby car. Short-course trucks like the Traxxas Slash carry a body that wraps over the wheels, so they bump other cars without tangling and feel planted on grass. Buggies sit low and turn sharply, but they want a prepared track and answer rough ground with broken arms. Rock crawlers are the slow end: an Axial SCX10 or a Traxxas TRX-4 creeps up a dry riverbed on locked differentials, and the small TRX-4M will climb a garden wall. Drift cars need a polished floor or smooth asphalt, and the palm-sized Kyosho Mini-Z runs on indoor tracks. Toy-grade cars sit apart from all of these, sealed and without spare parts.
Nitro buggies and Mini-Z cars at the club tracks:
club racing in Costa Rica includes weekend championship rounds for nitro buggies and weeknight Mini-Z races indoors. If you want to race, buy into a class people already run, because setup advice and second-hand parts follow the field. A nitro buggy burns glow fuel and needs a glow starter, a starter box and patience with tuning. An electric brushless buggy is quieter and starts at the flick of a switch, but it will not line up in a nitro final. For bashing, brushless is worth paying for: faster, no brushes to wear out, and happy on bigger packs. Ready-to-run boxes come with a pistol-grip radio, and that wheel-and-trigger transmitter will not fly RC airplanes, which take a two-stick radio.
Mud, sand and the word waterproof on the box:
on a Traxxas or an Arrma it covers the receiver, servo and speed controller, not the rest of the car. Bearings, hinge pins and screws still corrode, the transmitter is not sealed at all, and a motor full of water fails quickly at full throttle. After a muddy run in the rainy season the car wants the battery out, a gentle rinse with a hose rather than a pressure washer, light oil on the bearings and time to dry. Few owners do that every time, so a truck that has lived through a few winters around Guápiles deserves a close look at its wheel bearings. Waterproof is not submersible either: anyone who wants to drive on the lake is really after RC boats.
Under the body of a used basher or buggy:
take the shell off first. Bodies swap between chassis, and plenty of cheap cars wear a Slash or Stampede lookalike, so the chassis, speed controller and radio tell you what the car really is. Spin each wheel for grinding or play, rock the suspension arms for slop at the hinge pins, and check the spur gear for chipped teeth. An oily film around a differential means a leak, and hairline cracks in the chassis plate show a car that has landed hard. On a nitro engine, turn the flywheel slowly and feel for a firm pinch near the top of the stroke: one that turns over freely has lost compression, and a torn air filter means grit has been through it. With an electric car, listen for a motor that stutters from a standstill and check the LiPo for dents.
Photos of the chassis, not just the paint:
buyers have already seen the glossy shell. Shoot the car from underneath and with the body off, plus the spur gear and receiver box up close. Give the brand, model and scale, say whether it is brushed, brushless or nitro, and list what comes with it: the radio, the packs and charger, or for nitro the glow starter and starter box. Mention whether it has been raced, run in mud or rebuilt, and which parts are not original. A buyer coming from Alajuela or Santa Ana will want to see it move, so charge a pack beforehand and suggest an empty court where it can be driven.