UVU Mechanical Engineering Capstone Project

Bike Rear Derailleur Hanger Design Project

Team Members: Hannah Chipman, Taylor Smith, James Torgersen, and Shawn Weeks

Poster for RDH

This paper outlines the design process of a rear derailleur hanger (RDH) alignment tool for a mountain bike (MTB). Research was conducted to determine the needs related to derailleurs in the MTB industry. It was established that an easier to use, portable, and cheaper RDH alignment tool could fill a need within the MTB community. The overarching goal was to return a deformed rear derailleur hanger to a functioning state, which opened the design space to many new solutions. Using design methods such as computer-aided design (CAD), finite element analysis (FEA), and rapid prototyping a functioning tool was created. The final tool uses an adapter rod that is attached to the RDH and with the relocatedfront MTB wheel as a guide, can realigna bent RDH. This design departs from the industry standards for RDH alignment tools and provides acheapsolution to mountain bikers while on the trail.

Students' Presentation