What is a G4 Bike?

Could the G4 be the next generation of bicycle?

The Generation Four Bicycle combines the best of upright and recumbent bicycles. It is a practical, high performance machine that effectively integrates and engages the rider for a uniquely satisfying riding experience. The G4 is easy to ride, accelerates and climbs like the best upright bikes, and has the speed, comfort and safety of the best recumbents. The rider can easily put both feet immediately on the ground.

The front wheel drive G4 has the foot pedal crankset mounted on the front fork near the steering axis. New principles of operation lets the seated rider use their full body to pedal and apply supplemental upper body power, very much like when standing to pedal a conventional upright bike. No supplemental mechanism is necessary. Aerodynamic disk wheels can be routinely used on both the front and rear, even in blustery wind.

G4 performance and comfort was proven by winning the World Ultra Cycling Association (WUCA) Recumbent Bicycle 12 hour National Championship, on May 22, 2021 at Mount St. Mary's University, Emmitsburg, MD.

The G4 is a fundamentally new and different. Just as the upright was to the High Wheeler and the High Wheeler was to the Hobby Horse before that. The Generation Four is a reinvention of the bicycle. It is a better bike for more people.

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G4 Bike Introduction

Presentation charts and a link to the G4 Bike Laidback Bike Report of July 2021. There is also a brief video of me riding a G4 and showing use of hand power input for acceleration. A short written description of the hand power input mechanisms is also provided.

Four Generations

The G4 is a historic development of a fundamentally different bicycle configuration. Only the fourth in the 200 year history of bicycles. This is as explained to the International Cycle History Conference in July of 2022. See that presentation, associated paper and an additional historic summary paper here. The G4 "Race" configuration is also introduced.

Bike Speed Comparison

A comparison of 10 upright, commercial recumbent and G4 Bike speeds at 200 Watts. The G4 are not just easy to ride, they are fast. Both the G4 Sport and Race. A lot faster than even really good upright race bikes. See the charts and a link to the featured Laidback Bike Report presentation of November 2022.

G4 Bike Adventures

These are mostly just photos of some of the G4 riding we are doing.

Intellectual Property

G4 Bikes need to be available for sale. A lot of people will be a lot happier and healthier with a G4 Bike. The world will be a better place with G4 Bikes. Millions of them. This is some of the intellectual property to support that business. Including the first patent awarded and the G4 Flying Wing Logo.

G4 Bikes for Sale

We are working hard to make G4 Bikes available for sale. No promise date yet.

What is a G4 Bike?

GO TO THE MENU PROMPT ABOVE TO NAVIGATE TO The PAGES Below

G4 Bike Introduction

Four Generations

Bike Speed Comparison

G4 Bike Adventures

Intellectual Property

G4 Bikes for Sale

Photo Gallery

Contact Information

What is a G4 Bike?

GO TO THE MENU PROMPT ABOVE TO NAVIGATE TO The PAGES Below

G4 Bike Introduction

Four Generations

Bike Speed Comparison

G4 Bike Adventures

Intellectual Property

G4 Bikes for Sale

Photo Gallery

Contact Information

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