🪨 The JConcepts Rock Bumps 1.9" are competition tires specifically developed for the Sporty Mini class. Inspired by the famous Goose Bumps from the JConcepts lineup, these tires feature a tread pattern with studs and traction bars that provide exceptional grip on rocks, dirt, roots, and technical terrain. Thanks to their ultra-soft Sticky Green Compound, they maximize traction and grip in the most demanding sections.
⚙️ Technical Specifications
- JConcepts Rock Bumps Competition Tires crawler
- Compatible with 1.9-inch rims
- Designed for the Sporty Mini class
- Tread pattern with studs and traction bars
- Ultra-soft Sticky Green Compound
- Narrow, high-flex casing
- Excellent grip on rocks and technical terrain
- Reinforced sidewalls with anti-deformation radial patterns
- Open side shield for added grip
- Molded JConcepts logos and markings
⚙️ Dimensions
- Outer diameter: 108 mm
- Width: 38 mm
- Rim compatibility: 1.9 inches
🧩 Contents
- 2x JConcepts Rock Bumps 1.9" Tires
- 2x React open-cell inserts
🎯 Who is it for?
- Drivers competing in Sporty Mini
- Fans of technical off-road driving
- Users looking for maximum grip
- Fans of high-performance crawler tires
- Competitors seeking excellent tire flex
🔄 Compatibility
- 1.9-inch rims
- Sporty Mini RC crawlers
- Compatible with many crawler competition chassis
❗ Note
- Compatible 1.9" crawler rims
- RC tire glue if necessary
- Optional foam/inserts depending on setup preferences
JConcepts is a leading manufacturer of RC modeling accessories, including well-designed bodies, tires, and wheels, preferred by RC racing professionals for their high quality and performance competitiveness.
Manufacturer's website JConcepts
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