Topline A7075 Conversion Chassis 2.5 for RDX RC Model Upgrade Kit. Upgrade your RDX with the A7075 Conversion Chassis, designed for high strength and compatibility with aluminum main chassis. This chassis enhances performance and durability for serious enthusiasts. Brand: Not specified. Model Code: TP-440. Gender: Not applicable. Size: Not applicable. Racing Approved: Not specified. New, never used. Ideal for enhancing your RDX model’s performance. Remote area surcharges e. DHL/UPS may apply; we will contact you if needed. Serial numbers/tamper labels and item photos are recorded. Any alteration or parts removal voids eligibility. We do not undervalue or mark items as gifts.