Kyosho UMW742B Carbon Composite Rear Suspension Arms for RB7  [KY-UMW742B]

Kyosho UMW742B Carbon Composite Rear Arms for Track Precision

The Kyosho UMW742B Carbon Composite Rear Suspension Arm Set is a practical upgrade for racers running the RB7 chassis who want stronger components without extra weight. Constructed from high-grade carbon composite, these arms balance durability and lightness to help maintain control during aggressive laps.

Benefits of Carbon Composite Parts

Carbon composite is prized for its excellent strength-to-weight ratio. Fitting the UMW742B arms reduces unsprung mass on the RB7, which helps steering responsiveness and keeps the suspension reacting quickly to track changes without sacrificing toughness.

Direct Replacement for RB7 Chassis

These arms are made to match the RB7 mounting points and geometry, so installation is straightforward and requires no trimming. That makes the UMW742B set a convenient swap for those upgrading from stock parts.

Designed for Competitive Driving

For club and regional competitors, the Kyosho UMW742B delivers consistent feel and improved resilience under load. The combination of precision molding and material choice helps drivers push lines with confidence.