Peter, AbinAbinPeterRaj, AnkurAnkurRajFodjo, KamtchuengKamtchuengFodjoVarun VinodB M, Girish2026-05-102026-05-102019-06https://gnanaganga.alliance.edu.in/handle/123456789/10797Bicycle gearing is the aspect of a bicycle drivetrain that determines the relation between the cadence, the rate at which the rider pedals, and the rate at which the drive wheel turns. Previously, bicycles as known to have only single gear but as technology advanced multiple gearing mechanism were made possible which were manual, automatic and even electronic. This leads us till today where we introduce our new portable automatic gear shifting mechanism. Although automatic gear shifting in bicycle is rare, we have tried to come up with a new concept which can shift the gears of the bicycle in response to the speed of the person pedaling. We provided a range of speed with respect to the corresponding gear allowing the rider to change swiftly and effectively the gear without operating manual command. Also, we tried to make it portable so that it can fit on most standard bicycles. We hope this product will be easily commercialized and distributed worldwide and obtain recognition for what it is. Although it is a prototype and hence it can be upgraded more and more, we hope this basic concept is enough. This product is mostly suitable for normal terrain and is beginner friendly but less suitable for professional riders or in competition.enBicycleAutomatic Gear Shiftingtext::report