How to Choose 1.9 Tires for Your RC Crawler
By Vanquish Products - Premium RC Crawler Kits & Accessories | Published: 2026-10-27
Category: Buying Guides
Learn how to pick the right 1.9 RC tires for your crawler, including compound choices, terrain matching, and fitment considerations.
Quick Answer
Choose 1.9 RC tires based on your rig's weight, the terrain you crawl most, and your preferred balance between grip and durability. For most builds, a soft compound with an open tread pattern offers the best all-around performance.
Compound Matters More Than You Think
The rubber compound determines how much grip your tires provide and how quickly they wear. Softer compounds stick better to rocks and slick surfaces, but they also flex more, which can reduce stability on heavier rigs. Harder compounds last longer and hold their shape better, but they sacrifice traction on wet or polished surfaces.
For example, the Toyo Open Country R/T Pro 1.9 is available in both a super soft RED compound and a soft WHITE compound. The RED compound is designed for lighter rigs and offers the stickiest, softest feel, while the WHITE compound provides a slightly firmer option that may suit heavier vehicles or longer runs.
Tread Pattern and Terrain
The tread design affects how the tire bites into different surfaces. Aggressive, luggy treads excel on loose dirt, gravel, and rock, while smoother, more tightly spaced treads perform better on hard-packed trails. Consider where you crawl most: if it's mostly rocky ledges, an open, aggressive pattern will help; if it's packed dirt or slick rock, a more versatile pattern might be better.
The Yokohama Geolandar X-AT 1.9 features a rugged all-terrain tread that balances on-road manners with off-road capability, making it a solid choice for mixed conditions. Its 4.5-inch height and 1.4-inch width offer a good compromise between clearance and stability.
Size and Fitment Considerations
Tire size affects both clearance and handling. Taller tires give you more ground clearance but can raise the center of gravity, making the rig more tippy. Wider tires provide more flotation on soft surfaces but can add rolling resistance and may require wheel well modifications.
Always check your wheel bead diameter (1.9 inches for these tires) and ensure the tire's overall height and width fit within your chassis and body. For instance, the Toyo Open Country R/T Pro measures 4.65 inches tall, while the Yokohama Geolandar X-AT is 4.5 inches tall—a small difference that could matter on a tight chassis.
Decision Rules for Choosing 1.9 Tires
- Rig weight: If your crawler is lightweight (under 5 lbs), choose a super soft compound like RED for maximum grip. If it's heavier, go with a soft compound (WHITE) or medium to avoid excessive flex and instability. Weigh your rig before buying to narrow down the compound choice.
- Terrain type: For loose dirt and gravel, pick an aggressive lug tread. For slick rock, a softer compound with a versatile tread pattern works better. For mixed conditions, an all-terrain tread like the Yokohama Geolandar X-AT is a safe bet. Match the tread pattern to your primary crawling surface.
- Size and fitment: Measure your wheel wells and check the tire's height and width. A 4.65-inch tire may rub on a chassis designed for a 4.5-inch tire. Always confirm the 1.9-inch bead diameter matches your wheels. Verify dimensions against your rig before purchasing.
Products to Consider
- Toyo Open Country R/T Pro 1.9 Tires (2) - 4.65": Available in super soft RED and soft WHITE compounds; the RED is suggested for lighter rigs and offers the stickiest, softest feel. This lets you match tire grip to your rig's weight—choose RED for a lightweight crawler that needs maximum bite, or WHITE for a heavier build that benefits from a slightly firmer tire.
Toyo Open Country R/T Pro 1.9 Tires (2) - 4.65" - Yokohama Geolandar X-AT 1.9 Tires (2) Red Compound - 4.5": Extra soft RED compound with medium density open cell foam; measures 4.5 inches tall and 1.4 inches wide. The included open cell foam provides support without being too stiff, and the 4.5-inch height offers a good balance of clearance and low center of gravity for many crawler builds.
Yokohama Geolandar X-AT 1.9 Tires (2) Red Compound - 4.5"
Who Should Choose Which Tire
Best for
- Lightweight crawlers that need maximum grip on slick rock and wet surfaces: Toyo Open Country R/T Pro in RED compound
- Mixed terrain crawling on dirt, gravel, and rock with a balanced tread: Yokohama Geolandar X-AT
Not for
- Heavy rigs that require a firmer tire to avoid excessive flex: consider a soft WHITE compound or a medium compound tire
- Very tight chassis where a 4.65-inch tire might rub: choose a shorter tire like the Yokohama Geolandar X-AT
