M04M Precision Graphite Upper Bumper TAMIYA M04M-09/WO by 3Racing  [M04M-09/WO]

Technical summary

This CNC-friendly graphite upper bumper is specified for the TAMIYA M04M 1/10 on-road chassis and is produced as part number M04M-09/WO. The component replaces the standard upper bumper to modify front assembly stiffness and to alter the mounting interface for body and brace elements.

Engineering and fitment: configured for the M04M layout, the part increases torsional stiffness at the front bulkhead to provide crisper steering input and enhanced chassis feedback useful in competitive tuning. Material selection targets a low mass to stiffness ratio appropriate for hobby and club-level performance tuning.

Installation guidance: the bumper secures to the factory upper bumper screw locations on M04M-pattern mounts. Use standard hex tools and original fasteners, ensure alignment with steering linkages and servo horns, and employ thin shims if minor clearance adjustments are required for precise fitment.

Service and tuning notes: inspect bearing surfaces where the graphite interfaces with adjacent fixtures and monitor fastener torque after initial running. Use controlled test runs to quantify handling changes when combining this part with suspension or tyre modifications.