Runner radius describes the curvature of the sled’s runners. Tighter radius allows sharper cornering but may reduce straight-line speed. Larger radius improves glide but decreases maneuverability in curves. Athletes choose runner radius based on track layout. Correct selection balances speed and control. For example a racer selects a slightly tighter radius for a technical track. That choice improves responsiveness in sharp corners. Coaches guide radius selection for optimal performance. Proper radius enhances corner precision. Balanced radius supports faster overall times. Careful runner selection tailors sled to the track.
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