The Basics; Frame Size; Recommended Sizing - Prodeco Technologies Genesis 500 User Manual

The following list is the areas of adjustability the G Plus Genesis 500 offers:

Saddle height

Saddle nose angle
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Saddle distance from steering tube and handlebar
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Handlebar height
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Stem rise and rotation
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Brake lever angle
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Brake lever reach

Fork suspension firmness
a. The basics
Understanding the basics to a bicycle frame size will help in determining the correct positions and adjustments for
your body size and comfort. The G Plus Genesis 500's frame was designed to easily accommodate all riders from
5' 6" to 6' 6" utilizing the available adjustments. The frame size can be considered anywhere from an 18" to 23" if
comparing to traditional measurements. The most important information to remember when sizing your bicycle is
that you are comfortable riding, especially when pedaling. With throttled electric bicycles some riders may choose
not to pedal and the measurement will be different than for a rider who chooses to pedal and is the same size.
Scooters for instance have a much lower saddle height than bicycles due to scooters not being pedaled. A higher
saddle height is only recommended for riders who pedal allowing them a full extension of their leg per rotation of
the crank.
b. Frame size
The typical measurement number used today in deciding if a frame size is the correct size for a rider is the seat
tube length. This number usually begins around 17" for MTB style bicycles and can go as high as 25" for Road style
bicycles. MTB bicycles will usually be 10% smaller in number size for the same height rider when comparing to
Road sizes. The seat tube length is measured from the centerline of the crank (bottom bracket) to the top of the
seat tube (seat tube clamp). There is another measurement sometimes forgotten which is actually more important,
this is the top tube length (seat tube to the steering tube). Most manufacturers will proportionally adjust the top tube
length according to the seat tube length and with stems being available in various lengths, fine tuning of this
measurement is easily accomplished.
Prodeco Technologies G Plus Genesis 500's frame measurement will differ from traditional bicycle frames due to
the seat tube being longer than a traditional bicycle.
The G Plus battery base required an added mounting area to the seat tube, therefore the better way to measure the
seat tube is from the base of the saddle clamp (seat post must be inserted at the lowest position) to the centerline
of the crank. When measuring this way, the G Plus Genesis 500 would be considered an 18" frame. Even though
considered an 18" frame, the frame is unique in other areas, allowing for all size riders and adjustable to be similar
to a 23" road bike frame.
The G Plus Genesis 500's has a high seat tube angle. With the high angle seat tube, as a tall rider raises their
saddle to accommodate their longer legs, the saddle will pull back offering a longer distance to the steering tube.
For fine detailed adjusting, the narrow seat post saddle clamp allows the saddle to be moved back or forward an
additional 7.5mm each way.
c. Recommended sizing
In today's bicycle industry, the top tube length is actually more important than the seat tube length. With seat posts
now available over 300mm, the seat tube length is no longer the most important number. The distance of the
bottom bracket to the road can also mislead the seat tube length. The top tube length is traditionally the distance
from the center of the seat tube to the center of the steering tube. For purposes of sizing the G Plus Genesis 500,
we will name the distance of the center of the saddle to the center of the handlebar the steering length (similar to
the top tube length).
You can adjust the steering length of your G Plus Genesis 500 by establishing the saddle position and handlebar
height combined with the adjusting of the stem rise via rotation. The saddle position can be adjusted for height and
distance from the steering tube via the quick release clamp and the saddle clamp. Keep in mind by increasing the
height of the saddle; this will also increase the steering length due to the angle of the seat tube. If you choose to
use your bicycle as a scooter style vehicle only, you should establish saddle height at a lower position to reduce the
center of gravity. Saddle height can be reduced to just above your inseam. Your inseam is the measurement of the
inside of your leg.
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