Revolution Design B84 Lightweight Ring Gear Set (For Modified and Stock)

The Revolution Design B84 Lightweight Ring Gear Set dramatically reduces rotating mass compared to the stock ring gear. The 2-piece construction features a hard-anodized aluminum differential cover with a separate steel ring gear, weighing just 7.3g versus 13.4g stock — saving approximately 12g per vehicle for improved responsiveness and acceleration.

Features:

• 2-piece construction: aluminum cover + separate steel ring gear
• Weight: 7.3g (vs 13.4g stock) — saves ~6g per unit, ~12g total per car
• Hard-anodized aluminum differential cover
• Suitable for Modified and Stock class racing
• Compatible with Team Associated B84