JConcepts 3121X-01 Reflex X - 1/8th Buggy Tire - Blue (Soft)

The most successful 1:8th buggy tire in the modern era adds another dimension to its championship-winning package. JConcepts combines the proven pin size, density, profile, and carefully arranged bite technology of the Reflex with an updated inner carcass featuring overlapping X-brace webbing. Originally designed to bridge the gap between the popular Hybrid and options such as the Crossbow and Stacker, the Reflex has built a legacy of its own. As of 2026, it stands alone as the tire that can do it all.

The Reflex features square, angled pins stacked vertically to flex and fold evenly across the tread. Paired with the blended internal X-brace webbing, the Reflex X takes performance further as traction builds. The updated inner structure helps resist tire expansion while providing the support needed to handle heavier side loads and increased cornering forces. The combination of stacked tread and a stable inner carcass promotes consistent wear and strong forward bite, while the aligned spacing encourages rotation through the turns and a snappy release to square up quickly.

The Reflex remains one of the most sampled and copied tire designs as competitors attempt to capture its performance and the JConcepts Racing Team vibe. But championship DNA, the reputation of the team from Groveland, Florida, and proprietary rubber compounds do not come from copying a tread pattern. They come from years of development, competition, and a commitment to winning. Each package includes JConcepts Dirt-Tech closed-cell inserts. Recognized by their durable construction and signature gray color, Dirt-Tech inserts complete a tire-and-insert combination built for the demands of 1:8th off-road racing.

The success of the Reflex starts with a commitment to the track. The JConcepts team builds, tests, and travels the world, supporting racers and gathering valuable driver feedback in pursuit of products that deliver in appearance and performance. Designed in the U.S.A. and backed by JConcepts customer service, the Reflex X is developed and supported by professionals who bring style, authenticity, and racing experience to every detail. Look for reputable dealers and distributors, demand authentic and licensed products, and choose JConcepts.

Performance driven, battle tested — JConcepts is World Proven Innovation and Design

Features:

• JConcepts original Reflex tread design
• Updated inner carcass with overlapping X-brace ribbing
• Square, angled pins arranged in stacked rows
• Horizontal connecting bars throughout the tread
• Designed for forward traction and responsive cornering
• Added carcass support as traction and cornering loads increase
• 83mm bead mounting size for 1:8th buggy wheels
• Available in multiple compounds
• Includes two tires and Dirt-Tech closed-cell inserts