This project focused on designing the rear swing arm for the MotoStudent race motorcycle. The objective was to define rear suspension geometry while maintaining structural stiffness, proper axle alignment, and clearance for the chain, rotor, caliper, and wheel through full suspension travel.
The swing arm had to meet strict geometry targets for wheelbase and axle position while packaging within limited space. It needed to support braking and drive loads without excessive deflection. Any misalignment would affect chain tension, suspension behavior, and rear wheel tracking.
I defined pivot location, axle position, and shock mounting geometry to meet suspension targets. I iterated section profiles in CAD to balance stiffness and manufacturability. Clearance studies were performed across full suspension travel to verify chain, rotor, and caliper spacing.
Mounting interfaces were modeled to support downstream FEA, fixture design, and fabrication planning. Standard hardware and realistic machining constraints were incorporated early to prevent redesign during manufacturing.
Manufacturing and Integration
The final swing arm model supported structural analysis and shop planning. Mounting faces and interfaces were defined for accurate fixture referencing. The design integrated cleanly with the linkage system, brake assembly, and rear wheel.
The finalized geometry met suspension targets, maintained clearance through travel, and supported downstream fabrication and system integration.