CST Adventure CM-A4II 150/70R18 70H TL

Introducing the CST Adventure CM-A4II in 150/70R18 70H TL—a purpose-built tubeless motorcycle tire crafted for riders who crave dependable grip, long wear, and confident handling on mixed terrain. This second-generation Adventure tire is designed to keep you rolling from highway stretches to light off-road adventures, without compromising comfort or safety.

Why the CM-A4II stands apart

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  Tubeless radial construction (TL) for easier mounting, repairability, and reliable bead seating on 18-inch rims.
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  Optimized tread pattern with water evacuation channels and balanced contact patches that deliver predictable grip in dry, wet, and mixed-surface conditions.
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  Advanced compound formulation—silica-enriched, engineered to maintain grip across a wide temperature range, so you feel confident whether you’re carving corners or cruising at speed.
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  Stability under lean and load—reinforced shoulder blocks and a profile tuned for consistent contact patch, helping you stay planted during fast cornering and on uneven surfaces.
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  High-speed capability with a 70H speed rating, suitable for sustained highway cruising up to 210 km/h while maintaining stability and even wear.

Ideal use cases

• Long-distance adventure touring on mixed roads—tarmac, gravel, and dirt paths alike.
• Weekend escapes and cross-country trips where reliability matters in changing weather.
• Riders with mid-to-full-size adventure bikes who want a single tire that performs well in diverse conditions.
• Urban-to-backcountry commutes where you may encounter standing water, debris, or loose surfaces.

What makes it the right choice for your bike

The CST Adventure CM-A4II is specifically sized for 18-inch wheels typical of many adventure and dual-sport machines. The 150/70R18 dimension balances a broad contact patch with responsive steering, offering a confidence-inspiring ride whether you’re navigating fast highway sweeps or tighter mountain roads. With tubeless construction, you’ll benefit from quicker plug-and-go puncture solutions and simpler maintenance, reducing downtime on backcountry trips.

Practical tips to get the most from your tire

• Follow your motorcycle manufacturer’s recommended tire pressures for the CM-A4II 150/70R18 70H TL to optimize grip, wear, and heat management.
• Regularly inspect tread depth and look for irregular wear—the CM-A4II’s design rewards even wear with consistent performance over the tire’s life.
• Have mounting and balancing performed by a qualified shop familiar with tubeless motorcycle tires to ensure bead integrity and true alignment.
• Store tires away from direct sunlight and extreme temperatures when not in use to preserve tread compound and stability.

Who should choose the CST Adventure CM-A4II

• Riders seeking a single, versatile tire that handles highway speeds and light off-road trails without swapping tires for different seasons.
• Owners of adventure bikes who want predictable wet weather performance and solid mileage without sacrificing cornering confidence.
• Those upgrading from older CM-series tires who value the improved stability and modern compound technology of the CM-A4II.

With the CST Adventure CM-A4II 150/70R18 70H TL, you’re choosing a tire that combines targeted engineering with practical, real-world performance. It’s built to help you ride farther, ride with certainty, and enjoy the journey as much as the destination.