Experimental analysis of alternative rider postures for low drag motorcycle design

The aerodynamic drag of a motorcycle greatly affects its energy efficiency, with the rider’s posture being a key factor in determining overall drag. This study presents a systematic comparative analysis of various rider postures through a multi-phase experimental approach: modification of an electri...

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Main Authors: Frederick Spaven, Yuanchang Liu, Mehdi Baghdadi
Format: Article
Language:English
Published: Elsevier 2025-07-01
Series:Transportation Research Interdisciplinary Perspectives
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S259019822500212X
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author Frederick Spaven
Yuanchang Liu
Mehdi Baghdadi
author_facet Frederick Spaven
Yuanchang Liu
Mehdi Baghdadi
author_sort Frederick Spaven
collection DOAJ
description The aerodynamic drag of a motorcycle greatly affects its energy efficiency, with the rider’s posture being a key factor in determining overall drag. This study presents a systematic comparative analysis of various rider postures through a multi-phase experimental approach: modification of an electric motorcycle for a reclining rider posture, quantitatively measuring rider–vehicle interaction forces and developing an analytical framework that correlates rider posture with ergonomic factors and aerodynamic parameters.The results show that aerodynamic drag can be reduced by up to 56% by changes to rider posture but viable applications are limited by the associated trade-offs, in particular a reduction in rider–ground interaction forces of up to 60%. Through this analysis, critical design constraints are identified and quantitative relationships between rider positioning, aerodynamic efficiency, ergonomic constraints and operational stability are established. The findings offer evidence-based design guidelines for optimising the balance between aerodynamic performance, rider control, and ergonomic considerations in motorcycle design.
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institution Kabale University
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language English
publishDate 2025-07-01
publisher Elsevier
record_format Article
series Transportation Research Interdisciplinary Perspectives
spelling doaj-art-59a3906f44384a78b7475eb00cc39f442025-08-22T04:57:54ZengElsevierTransportation Research Interdisciplinary Perspectives2590-19822025-07-013210153310.1016/j.trip.2025.101533Experimental analysis of alternative rider postures for low drag motorcycle designFrederick Spaven0Yuanchang Liu1Mehdi Baghdadi2Corresponding author.; Department of Engineering, UCL, Gower Street, London, WC1E 6BT, UKDepartment of Engineering, UCL, Gower Street, London, WC1E 6BT, UKDepartment of Engineering, UCL, Gower Street, London, WC1E 6BT, UKThe aerodynamic drag of a motorcycle greatly affects its energy efficiency, with the rider’s posture being a key factor in determining overall drag. This study presents a systematic comparative analysis of various rider postures through a multi-phase experimental approach: modification of an electric motorcycle for a reclining rider posture, quantitatively measuring rider–vehicle interaction forces and developing an analytical framework that correlates rider posture with ergonomic factors and aerodynamic parameters.The results show that aerodynamic drag can be reduced by up to 56% by changes to rider posture but viable applications are limited by the associated trade-offs, in particular a reduction in rider–ground interaction forces of up to 60%. Through this analysis, critical design constraints are identified and quantitative relationships between rider positioning, aerodynamic efficiency, ergonomic constraints and operational stability are established. The findings offer evidence-based design guidelines for optimising the balance between aerodynamic performance, rider control, and ergonomic considerations in motorcycle design.http://www.sciencedirect.com/science/article/pii/S259019822500212XMotorcycle ergonomicsMotorcycle aerodynamicsRider postureSustainable transportationVehicle design
spellingShingle Frederick Spaven
Yuanchang Liu
Mehdi Baghdadi
Experimental analysis of alternative rider postures for low drag motorcycle design
Transportation Research Interdisciplinary Perspectives
Motorcycle ergonomics
Motorcycle aerodynamics
Rider posture
Sustainable transportation
Vehicle design
title Experimental analysis of alternative rider postures for low drag motorcycle design
title_full Experimental analysis of alternative rider postures for low drag motorcycle design
title_fullStr Experimental analysis of alternative rider postures for low drag motorcycle design
title_full_unstemmed Experimental analysis of alternative rider postures for low drag motorcycle design
title_short Experimental analysis of alternative rider postures for low drag motorcycle design
title_sort experimental analysis of alternative rider postures for low drag motorcycle design
topic Motorcycle ergonomics
Motorcycle aerodynamics
Rider posture
Sustainable transportation
Vehicle design
url http://www.sciencedirect.com/science/article/pii/S259019822500212X
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AT yuanchangliu experimentalanalysisofalternativeriderposturesforlowdragmotorcycledesign
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