Design and Fabrication of Elliptical Bicycle

Abstract

The elliptical bicycle is a novel human-powered vehicle that combines the mechanics of a conventional bicycle with the motion dynamics of an elliptical trainer. It is designed to deliver a low-impact, full-body cardiovascular workout while offering the practicality and freedom of outdoor transportation. The primary goal of the project is to create an ergonomic and efficient transportation alternative for health-conscious users, athletes undergoing rehabilitation and those seeking a more joint-friendly riding experience. Fabrication includes selecting suitable materials such as aluminum or steel, welding the custom frame, assembling the elliptical motion system, and integrating gear transmission and braking components. Once assembled, the prototype undergoes performance testing to evaluate smoothness of motion, comfort, and mechanical reliability. The final product demonstrates improved rider posture, reduced joint strain, and an engaging ride experience, making it a viable and health-oriented alternative to both indoor elliptical machines and conventional bicycles

Introduction

The bicycle has evolved from Karl von Drais's 1817 “running machine” into a modern, efficient human-powered vehicle. Similarly, elliptical trainers have become popular for offering full-body, low-impact cardio workouts. Combining these ideas, the low-effort treadmill bicycle aims to provide a stable, outdoor fitness device that functions like a regular cycle but mimics the elliptical trainer's mechanics.

Problem Definition

Traditional treadmills are limited to indoor use. This project repurposes treadmill mechanics into a moving bicycle for urban commuting. It addresses:

• Environmental concerns (reducing fuel use and pollution)

• Physical inactivity

• Urban constraints like crowded roads and short travel distances (ideal for 5–7 km commutes)

Objectives

1. Design a low-effort, treadmill-style outdoor cycle

2. Ensure affordability and cost-effectiveness

3. Encourage eco-friendly, fuel-less transportation

4. Promote fitness through everyday travel, reducing pollution and global warming impacts

Conclusion

Elliptical bicycle can perform multi operation in minimum time. Elliptical bicycle is completely manual operated. Elliptical bicycle provide more exercise for human. Elliptical bicycle does not used any organic fuels so it is very eco-friendly. Elliptical bicycle does not promote any type of pollution. In This bicycle can be helpful for peoples to travel short distances as well as used for exercise. Using this elliptical bicycle, allotting a separate time for their exercise is not needed

References

[1] Sagar Pardeshi, Pankaj Desle “Design and Development of Effective Low Weight Racing Bicycle Frame”, International Journal of Innovative Research in Science, Engineering and Technology (IJIRSET). [2] Matthew N. Godo, David Corson, Steve M. Legensky, “A Practical Analysis of Unsteady Flow Around a Bicycle Wheel, Fork and Partial Frame Using CFD” American Institute of Aeronautics and Astronautics. [3] Stephen Smaldone, Chetan Tonde, Vancheswaran K. Ananthanarayanan, Ahmed Elgammal, and Liviu Iftode, “Improving Bicycle Safety through Automated Real Time Vehicle Detection” Department of Computer Science Rutgers University 110 Frelinghuysen Rd, Piscataway, NJ 08854 [4] Shih-Wen Hsiao, Rong-Qi Chen, Wan-Lee Leng, “Applying riding-posture optimization on bicycle frame design” Department of Industrial Design, National Cheng Kung University, Tainan 70101, Taiwan, ROC

Copyright

Copyright © 2025 B. Sairamkrishna, Ab. Firoze, Sk.Nasar Hussian, Itha Raju . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.