LCG (Low Center of Gravity) RC frames are a game-changer for serious crawlers and performance builders, offering improved stability, control, and climbing ability. By lowering the weight distribution closer to the ground, LCG chassis dramatically reduce the chance of rollovers on steep inclines and side-hilling terrain. These frames typically come in sizes to match popular wheelbases—most commonly 12.3 inches (313mm) for 1/10 scale crawlers, but you’ll also find shorter 11.4" (288mm) and longer 12.8" (324mm) versions for specific builds like comp rigs or scale trucks. Made from lightweight materials like carbon fiber, steel, or aluminum, LCG frames are designed to keep the motor, transmission, and battery as low as possible. Paired with high-clearance skid plates and adjustable link geometry, they offer superior articulation and tighter handling. Whether you're upgrading an RTR rig or building a full custom setup, an LCG chassis delivers next-level performance on the rocks and trails.
A regular RC crawler frame, often called a ladder-frame chassis, is the traditional backbone of many trail rigs and scale crawlers. Designed for durability and scale realism, these frames feature dual C-channel rails, usually made of steel or aluminum, with cross-bracing for strength and mounting points for shocks, links, and electronics. The most common size is a 12.3-inch (313mm) wheelbase, which fits a wide range of aftermarket bodies and accessories. Some models come in shorter 11.4-inch (288mm) or longer 12.8-inch (324mm) wheelbases, depending on the rig’s purpose or body style—like Jeep Wranglers, pickup trucks, or long-wheelbase SUVs. While they sit higher than LCG frames, regular RC chassis offer more ground clearance and are ideal for scale driving, trail running, and light crawling. They're also beginner-friendly and easy to work on, making them a popular platform for both newcomers and seasoned hobbyists who want a realistic-looking, all-around performer.
Suspension links and rod ends are key components in an RC crawler's geometry, affecting everything from articulation to durability. Links connect the axles to the chassis and control movement, while rod ends provide the pivot points. They typically come in 4-link or 3-link setups, and are made in various lengths depending on the rig’s wheelbase—common sizes range from 90mm to 120mm or more. Many links are adjustable by using threaded rod inserts or turnbuckles, allowing you to fine-tune your caster angle, pinion angle, and wheelbase. Links are often made from steel, aluminum, or titanium for strength, while carbon fiber versions are available for lightweight performance builds. The rod ends, usually made of plastic or Delrin, can be a common weak point under stress, especially in colder weather or during high-impact driving—but they’re inexpensive and easy to replace. For crawling performance, you’ll find high-clearance links that are curved or bent upward to give more ground clearance over rocks, while straight, low-clearance links are typically stronger and more suited for trail and scale driving. Upgrading to metal links with reinforced rod ends can significantly improve durability and control, especially for aggressive crawling or comp-style setups.
Suspension is one of the most important systems on an RC crawler or racer, directly impacting handling, articulation, and overall performance. There are a few common styles, with coil-over shocks being the most widely used, featuring a spring wrapped around an oil-filled damper. One popular upgrade is the Desert Lizard dual-stage internal spring shock, which uses both internal and external springs to provide progressive damping—soft in the initial travel for absorbing small bumps, and firmer deeper into the stroke for control on bigger hits. Compared to regular shocks, Desert Lizards offer smoother articulation and better adjustability for crawling, especially on uneven terrain. Suspension tuning is just as critical; many RC rigs come with adjustable shock mounts or “suspension keys” that let you change the shock angle. Tilting shocks inward (laying them down more) generally softens the suspension feel and allows more flex, while standing them up more vertically stiffens the response, offering better handling at higher speeds. Between shock oil weight, spring rate, and mounting angle, suspension setup plays a huge role in customizing your rig’s behavior to match your terrain and driving style.
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