RS3 Chassis
Complete 2025 SODI chassis lineup featuring the SIGMA DD2 (designed for ROTAX Direct Drive engines with new Ø30 frame and CIK rear bumper) and the FURIA 950 (950 mm wheelbase) — race-proven, tested, and built for competitive karting.
$8,385.54
Details
The Sigma RS3 TAG chassis is designed for medium tires and ideal for major U.S. karting series (Rok Cup, SKUSA, Rotax, COTA) and CIK-FIA OK categories. Its longer wheelbase, reinforced column support, and new 30mm frame with aluminum floor tray deliver improved performance and ease of use in all track conditions.
Key Updates (2024 Evolutions)
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Redesigned frame for higher performance and simpler setup.
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Improved tube material quality.
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Softer stub axles for better handling.
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Longer steering tie rods (from 266mm → 276mm).
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Removed central bearing cage, now using only two bearing cages.
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80mm rear wheel hubs now standard.
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Modified front flat stabilizer now standard.
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