The M-07 Concept Reinforced D Parts Suspension Arms 2pcs. Hop-Up Options no.1811 produced by Tamiya, is classified in Spares / Hop-ups - Tamiya - M07 Tamiya #54811 - M-07 Concept Reinforced D Parts (Suspension Arms) 2pcs. Hop-Up Options no.1811 Use these carbon fiber-reinforced resin D parts in place of kit suspension arms for superior cornering ability. Contains two D parts sprues. Compatible Chassis M-07 Concept chassis cars