1. Raymond’s Tricycle Project Presentation 2014
Bike Build By CCBC Essex ENSC 101 Student of Spring 2014
Instructor: Jason Dunthorn

2. Raymond’s Tricycle Project Overview
Client Criteria (House Visit 1)
Design Process
The Build (House Visit 2)
The Presentation to the Client

3. Who is Raymond?
Raymond is a fun and energetic 14 year old who
lives at home with his adoptive parents and
cousin, Tyreek. He lives with various conditions
and syndromes such as:
• Spastic, Ataxic Cerebral Palsy
•Fetal Alcohol Syndrome
•Scoliosis
•Bilateral Hip Dysplasia
•Low Bone Density (Osteopenia)
His adoptive parents submitted a request to V-
Linc for a tricycle that can accommodate for
Raymond’s syndrome. The tricycle is also to
provide a therapeutic medium for
encouragement of recovery from surgeries and
treatments.

4. What were the client’s criteria?
In order to satisfy the client’s request the tricycle had to fulfill the
following requirements:
•Adaptability to the inside and outside
environment
•Transportable (ability to be transported in a
SUV)
•Accommodate for Raymond’s syndrome
•Low Bone Density
•Hip Dysplasia
•Cerebral Palsy
•Adjustable to Raymond’s growth
•Allowance for therapy through muscle strength
and bone growth mobility
•No wider than 26” (due to turn radius inside
the home)
•Guardian steering & breaking
•Secure and Safe seating & pedaling
•Blue or Sponge Bob Themed
•Provide comfort
•Simple repair, upgradable, and maintainable

5. Design Process
After brainstorming and discussing the concepts and the
requirements, the class broke up into 4 separate departments. Each
department addressed specific issues and components of the build.
Frame Team • Goal: To build a frame that is adaptable for the client’s growth, transportable, mobile
in the dimensions of the client’s home, and incorruptible for many usage.
Main
Component
Team
• Goal: To acquire or build components that accommodates for environmental
adaptability, provide guardian steering and breaking, provide comfort and safety, and
provide therapeutic mobility.
Aesthetic
Team
• Goal: To provide an aesthetic value to the vehicle. To fulfill the aesthetic wishes from
the client.
Seat Team • Goal: To provide a comfortable seating for the client that will create a secure and safe
environment and accommodate a upper body support.

6. Frame
• Frame was built to be low on the ground
for balance.
• Based off of a go kart design for a short
turn radius.
• Used standardized BMX measurements
• Assembled with recycled steel & old BMX bike parts
• The seat support area had a slide railing built in to allow the seat to be
adjusted. The adjustment will allow the tricycle to grow with the client.

7. Main Component
• Brake Cables Lever: Placed as a secure braking system for front
controls, rear steering controls, and parking. Braking is placed on rear
wheels.
• Handlebar: A wide oval shaped handlebar was chosen to have an
allowance for brake lever placement and to provide a comfortable
placement for hand placement. BMX standardized measurement.
• Pedals: Backward no-brake, adjustable foot width and length, and with
attached secure straps.
• Rear Steering: Directly attached to the rear wheels and has adjustable
height bars for different height of the guardians.
• Wheels: Garden cart wheels to provide a versatile option for riding on
different terrains.

8. Aesthetic
• Blue & Gold combination Color. Blue as the main color and the gold as
an accent.
• Bright and vibrant colors are used to catch pedestrians attentions and
raise awareness.
• Painted with a base and then
layered at the paint shop.
• The layers of painting allows
a lasting coat and to have it
be easily maintainable.

9. Seat
• Due to bilateral hip dysplasia,
scoliosis, and low bone density
the seat had to provide the
support and comfort for the
client.
• Safety belts is designed and
attached to secure the upper
body of the client while allowing
the client to be mobile.
• Bottom of the seat allows an
attachment to the slide railing
on the frame.

10. Final Presentation to the Client
On 5/7/2014,
Raymond got to ride
his new tricycle for the
first time!
His adoptive father is
pictured here, steering
Raymond as he pedals.

11. Thank you Raymond and Family! We enjoyed working with you!
Hope you enjoy your tricycle!