1. 2828 State Street
San Diego, California 92103
Phone: (619) 578-1186
Fax: (888) 503-0665
Email: sdlawyerhelp@gmail.com
Web: www.gravityseat.com
Executive Summary
Inspired by the graceful corning abilities of 200 plus mph Formula GP motorcycle racers and
the ragged-edge style of Motocross champions, the Gravity±Seat suspension seat post
overcomes a critical limitation inherit in the handling characteristics of bicycles. It is the first of
its kind ever to be designed for road bikes, flowing with the rider’s natural body position and
riding style while distributing the weight down low and evenly through corners, dramatically
increasing aerodynamics, traction and control.
Gravity±Seat offers this same performance advantage for off-road bikes while adding nearly
three inches of suspension to any bicycle in a simplistic, durable design. The patented
reverse angle design allows the seat to travel downward to lower the center of gravity while
the damping shock absorbs sharp impacts. This gives riders the ability to drop down and back
toward the rear of the bicycle through rough sections and steep downhills rather than being thrown over the handle bars.
The result is a faster, safer and smoother ride. Gravity±Seat bound to be a “must have” accessory for any rider in search
of an accessory that increases the overall performance of their bicycle.
Market Opportunity
Bicycling is the seventh most popular recreational activity in America. Roughly 39 million people rode bicycles in the
United States in 2011. People that described themselves as occasional or frequent bicycle riders accounted for 22.9
million of this group. The bicycling industry generated $6 billion dollars in revenue and over 12.8 million bicycles were
sold in the USA. Over $3 billion dollars was spent last year on aftermarket parts and accessories purchased at bike
specialty shops and retail markets. Of the accessories available, aftermarket suspension seat posts have become hugely
popular among the off-road bicycle community, with thirty eight different products to choose from currently. There are no
suspension seat posts designed specifically for road bikes. Gravity±Seat is uniquely positioned to be the first suspension
seat post to enter this market.
Competitive Differentiation
Off-Road Suspension seat posts: The present market of adjustable suspension bicycle seat posts for off-road bikes falls
in to two categories: (1) a spring loaded “Vertical Spring” design incorporating two telescoping straight tubes that
compress downward on either an internal or external spring; or (2) a “Cantilever” type design that allows the seat to pivot
down toward the rear of the bicycle in a scissor-like manner.
Gravity±Seat is a distinct improvement over the existing market by combining the main benefits of the Vertical Spring and
Cantilever designs. Specifically, Gravity±Seat (1) travels up and down like the Vertical Spring variety, thereby reducing
the need for complex motions found in the cantilever designs; and (2) the seat is moved both down and back like the
Cantilever design – something the Vertical Spring models cannot do. In addition, Gravity±Seat utilizes both a spring and
a hydraulic damping shock for enhanced shock absorption and rebound rate control. Gravity±Seat’s unique design is less
complex and far more durable than its competitors in the off-road market today. It is also believed to be the first
suspension seat post in the world intended for the road bike market as well, creating a brand new market opportunity
where none existed before.
Business Structure
Gravity±Seat is a start up company in San Diego, California. Presently it has two fully functional prototypes, and all
intellectual property rights are 100% owned by Joshua Mackenroth. Gravity±Seat is in need of additional funding and
expertise to bring its product to the marketplace or alternatively, license the intellectual property rights to a large
manufacturer.
Founding Member and Sole Proprietor
Joshua Mackenroth is a licensed attorney, and currently owns a law practice in downtown San Diego, California. He has
a Bachelor of Science degree in Business Administration in 1988 and graduated from California Western School of Law in
1993. He has been riding motorcycles since he was five years old, and has over twenty years of experience racing
motocross at the amateur level. Mr. Mackenroth created Gravity±Seat from the ground up, investing nearly $30,000 of his
own funds and thousands of hours in product design, patent applications, graphics, and the development of the website.