A/O Bicycle ROSA User manual

Assembly Guide
ROSA
TRAIL HYBRID ROAD BIKE
LOS ANGELES
[e-mail]
228.901.8386

1
Our Commitment
Our goal is to get you out on the road so you can forget
your troubles and feel the wind in your hair (through your
helmet of course – safety first!). If you run into any issues,
no matter how small, we’re here for you. Shoot us an
email or give us a call and we’ll figure it out together!
[e-mail]
228.901.8386

2 3
A NOTE FROM
OUR MECHANICS
Our Mechanics Are
Top Notch
Congratulations, you took the plunge and
bought yourself a bike! Now it’s time to dig into
those boxes and start your next adventure.
It’s assembly time!
Feeling a little overwhelmed? Don’t be. It’s time
to live in the moment. Forget about all those
times you’ve been frustrated by the little sheet
of paper with cryptic diagrams. You are about
to enter the AO Bicycle experience, and that,
my friend, is all about comfort. You got this!
We wrote and designed the instructions
ourselves. The key is to enjoy the process. Grab
some coee (or other beverage of your choice),
take your time, and immerse yourself in the joy
of building something from the ground up. It’s
our favorite way to begin a new journey.
Ride on!
On the o chance you might need some help,
our mechanics are waiting in the wings. They
are obsessed with building bikes and brilliant at
helping people from afar. Email us your question,
or if you feel like you need a little more help,
schedule an appointment to speak with us one
on one. We’ll get you back on track.
[e-mail]
228.901.8386

4 5
Tools You’ll Need
You’re about to build something wonderful,
so you’ll need a few tools. Nothing crazy, we
kept it simple. So, gather up what you need
and let’s get started!
SCISSORS
(use to cut zip ties)
PHILLIPS HEAD
SCREWDRIVER
(keeps your bike nice and tight)
15MM CRESCENT WRENCH
(or use the multi-tool
we gave you)
SCHRADER VALVE
BICYCLE PUMP
(gotta fill those tires
when you’re done)
4, 5, AND 6MM
ALLEN KEY
(we gave you these too,
they’re in your box)
2 PENNIES
(yup, you read that right)
OR (not just for our 2 cents)

6 7
Bike Parts
Reference Guide
You’ll need this as you start putting
your bike together. It’s handy to
have around, so keep it where you
can find it easily!
SEATPOST
SEAT
FRAME
SEAT STAYS
CRANK WHEEL
CHAIN
BRAKE LEVER
HANDLEBARS
HANDLEBAR
STEM
SHIFTER
REAR RACK
CASSETTE
REAR
DERAILLEUR
SEATPOST CLAMP
HANDLEBAR
GRIPS
CRANK
CRANK ARM
REAR BRAKE
FORK
AXEL
SPOKE
TIRE VALVE
TIRE
PEDALS
RIM

8 9
LOCK NUT CAP
What’s In
The Box?
The following 3 pages list everything that’s
in your box. Time to unpack it and lay
everything out in front of you. Make sure
you have everything before you get started.
Can you feel the anticipation?
HANDLEBAR / FRAME / REAR WHEEL
AND REAR RACK SET-UP
(the seat post is zip-tied to the frame)
QUICK RELEASE
FRONT WHEEL
QUICK RELEASE
SKEWER
FRONT AND REAR
REFLECTORS
MULTI-TOOL
ASSEMBLY GUIDE
4, 5, AND 6MM
ALLEN KEYS
PEDALS
SEAT
(attached to seat post)
12MM14MM
17MM
10MM
8MM
PEDALS + REAR AXEL
15MM
13MM
9MM

10 11
Front Wheel
GRAB YOUR PARTS:
NO TOOLS REQUIRED
Let’s Get Started
Alright, got your coee?
Everything laid out in front of you?
All your tools ready?
Ready. Set. GO!
QUICK RELEASE
FRONT WHEEL
FRAME WITH
REAR WHEEL
QUICK RELEASE
SKEWER

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12 13
03
Note
Take the Quick Release
Front Wheel and fully
insert the Rod (QR3)
into the hollow axle.
After Step 03, no tools
are required to install the
front wheel. If the brakes
are too tight and won’t
allow the front wheel to
insert completely into
the fork (see Step 05),
reference Step 06.
Slide the Quick Release
Skewer completely
through the hub.
Quick Release Skewers must
be installed correctly to avoid
bicycle damage and/or injuries.
QR3
NOTE
01
Spin the front fork
so the brakes are
pointing forward.
Turn the handlebars to
match the CORRECT
image, making sure
the cables don’t loop
around the headtube.
02
Find the Quick Release Skewer.
All the parts for the Quick
Release Skewer are attached.
Remove the adjustment nut
(QR5) and spring #2 (QR4)
from the rod (QR3).
INCORRECT
CORRECT
The brakes are
behind the fork
The brakes are
facing away from
the bike frame
QR1
QR4QR2 QR3 QR5

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07
Hold the quick release
lever (QR1) in the ‘Open’
position with one hand
while tightening the nut
(QR5) with the other
hand. Tighten the nut
until slightly snug but
not tight.
QR3
04
Place spring #2
(QR4) back onto
the end of the rod
(QR3), with the
smaller end of the
spring pointing
inward (toward
the axel). Loosely
reinstall the nut
(QR5) onto the rod
(QR3).
QR4 QR5
05
Locate the arrow on
the wall of the tire. The
arrow will indication the
direction you will install
the wheel in. If you see
no arrow, it is a multi-
directional wheel. It can
go in either direction.
Insert the wheel into
the fork dropouts. If the
brakes do not allow the
wheel to pass, please see
Step 06. FORK DROPOUTS
06
Pinch the front brake
arms to pull the metal
tubing up and out until
the brake arms are
disengaged.

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16 17
09
Make sure the wheel is
centered in the forks.
Hold the wheel in the
centered position with
your left hand. With
your right hand, swing
the quick release lever
(QR1) into the ‘Closed’
position. When closing
the lever, it should
swing slightly beyond
180-degrees. The closing
motion should feel firm
and leave a temporary
impression in your palm.
Once the front wheel is secured and centered,
lower the kickstand and find your rear rack.
Halfway through closing the lever it should
be tight enough to feel the resistance. Make
sure the front wheel is securely tightened
and properly aligned so there are no issues
when you assemble the brakes.
NOTE
08
QR5

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Front Wheel
& Rear Rack
REAR RACK
4MM
ALLEN KEY
10
11
Now let’s attach
the rear rack. If
the screws are
preinstalled,
unscrew them from
the frame using
the 4MM Allen Key.
Align the front
arms of the rear
rack to the eyelets
on the frame below
the seat. Insert the
screws, and using
a 4MM Allen Key,
tighten the screws
on both sides to
secure it to the
frame.
Install the bottom
rear rack arms to
the frame. Insert
the screws and
using a 4MM Allen
Key, tighten the
screws on both
sides to secure it
to the frame.
4M M
ALLEN KEY
4M M
ALLEN KEY
(2) 4MM ALLEN
KEY SCREWS
(located at rear
rack mount)
(2) 4MM ALLEN
KEY SCREWS
(located at rear
rack mount)
REAR RACK
REAR RACK
GRAB YOUR PARTS:
TOOLS YOU’LL NEED:
(4) 4MM ALLEN
KEY SCREWS
(pre-installed on
seat stays)

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Handlebar,
Seat & Pedals
SEATHANDLEBAR PEDALS
6MM
ALLEN KEY
GRAB YOUR PARTS:
TOOLS YOU’LL NEED:
PHILLIPS
SCREWDRIVER
13MM + 15MM
MULTI-TOOL
BICYCLE PUMP
12
Place the lock nut cap into the stem.
Line up the stem, frame and front wheel. Then tighten the
handlebar stem bolt using a 6MM Allen Key.
HANDLEBAR
6M M
ALLEN KEY
STEM
LOCK NUT CAP
LOCK NUT
HANDLEBAR
STEM BOLT
Straightening the stem, frame, and front wheel will ensure
that your handle bars and wheel are properly aligned. This
reduces stress on your body as you’re riding.
NOTE

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22 23
13
14
Loosen the handlebar
adjustment bolt using
the 6MM Allen Key
to change the angle
of the handlebars to
your liking. Typically,
riders prefer their grips
parallel to the ground.
Locate the Front
Reflector [how do
they know it’s the
front?]. Rotate the
reflector so that it
points forward.
Adjust the position of
the front reflector and
tighten the screw on
the bracket with the
Phillips Screwdriver.
ADJUSTMENT BOLT
6M M
ALLEN KEY
PHILLIPS
SCREWDRIVER
6M M
ALLEN KEY
15
16
Locate your Seat (the
seat tube is attached).
Open the seat post
clamp. Holding the
seat post firmly, insert
into the seat post tube
until the top is level
with your waist.
Close the seat post
clamp lever.
Loosen seat clamp
using a 6mm Allen
key and rotate the
top clamp 90º. Place
the saddle and rotate
the top clamp to it’s
original position.
Center the seat and
keep it parallel to the
ground. Tighten with
Allen key.
Make sure not to drop the
seat post into the frame.
NOTE

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24 25
17
18
19
Select the pedal
stamped ‘R’ and locate
the right side of the
bike (the side with the
chain and chain guard).
Thread the pedal into
the right crank arm,
turning the pedal
clockwise to tighten it.
Select the pedal
stamped ‘L’ and thread
it into the left crank
arm located on the left
side of the bike. The
left pedal is reverse
threaded, so turn it
counterclockwise to
tighten it. (Instead of
lefty loosey, this time
it’s lefty tighty!)
Hand tighten
accordingly then follow
up by tightening both
pedals with the 15MM
multi-tool.
Now you’re ready to
pump up your tires!
Pump air into the tires
as recommended on
the sidewall of the tire.
Sit on the bike and
check the angle
formed by your knee.
If you knee forms the
incorrect angle (as
seen in the INCORRECT
image below), use the
seat post clamp lever to
raise or lower the seat
until you have achieved
a comfortable height
(see the CORRECT
image below for the
correct angle).
PEDALS
BICYCLE
PUMP
15MM
MULTI-TOOL
RIGHT PEDAL
LEFT PEDAL
R
L
INCORRECT
CORRECT
The images shown use a
different bicycle, but the
instructions are the same.
NOTE

26 27
Tuning Your Bike
Great job putting the bike together.
Now it’s time to make sure it runs like a
champ. We’ll walk you through the whole
process, so read on!
Brake Assembly
5MM
ALLEN KEY
PHILLIPS
SCREWDRIVER
DIAGRAM
TOOLS REQUIRED
METAL TUBE
CABLE
HOUSING
BRAKE
ADJUSTMENT
SCREW BRAKE
LEVER
BARREL
HANGER
CABLE
BRAKE
HOUSING
BARREL
ADJUSTER
BRAKE
LEVER
CREVICE
SPRING
TENSION
SCREWS
BRAKE PAD
SCREW
BRAKE ARMS
PADS

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28 29
01
There are two ends to the
brake cable.
One end has a barrel
attached, while the other end
has a cable cap attached to
the end of the cable.
BARREL
CABLE
02
04
03
05
Attach the brake cable to the
brake lever by squeezing the lever
(as you would when braking) and
inserting the round cable end into
the linkage.
Loosen the cable barrel adjustment
lock nut manually or with a 8mm
allen wrench to ensure that the cable
barrel adjuster is seated in place.
Slide the cable through the slotted
opening in the brake lever. Insert
the end cap of the cable housing
into the brake lever.
Slide the cable housing down toward
the brake lever until it fits snug inside
the barrel adjuster.
LINKAGE
SLOTTE D
OPENING
BARREL
ADJUSTER
BARREL
ADJUSTER
Note
Sometimes the front brake
cable is disconnected from
the handlebar lever for
shipping.
If your brake cable is not
connected to the handlebar
lever, please see steps 01-04.
ATTACHE D
BRAKE CABLE

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30 31
06
08
07 09
Insert the open end of
the brake cable into
the large opening of
the metal tube.
Slide the exposed end
of the metal tube into
the horizontal metal
tube hanger, linked
on the left brake arm.
Make sure the metal
tube is hooked securely
inside the hanger.
Slide the metal tube up
the brake cable until the
housing fits snugly into
the cable housing. Using a 5mm Allen key,
loosen the brake cable
adjustment screw. Slide
the remaining brake
cable between the
right brake arm and the
adjustment screw.
5MM
ALLEN KEY
LEFT
BRAKE ARM
METAL TUBE
HANGER
END OF
METAL TUBE
BRAKE ADJUSTMENT SCREW
RIGHT BRAKE ARM
CABLE HOUSING
METAL TUBE
METAL TUBE

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32 33
10
12
11
Pull the cable outward,
reducing the distance
between the brake
pads and the rim by
about 1/4 inch on both
sides. Retighten the
adjustment screw. If one pad seems to run against
the rim while the other still has
plenty of space, you will need
to center the brakes. To do
this, adjust the spring tensioner
screws located at the base of
each brake arm.
Tightening the screw on the right
brake arm pushes the right brake
pad away from the rim, and the
left brake pad towards the rim.
Loosening the right screw allows
the right brake pad to move
closer to the rim, and the left
brake pad away from the rim.
That’s it! Now we just need to
tune up your shifting and you’ll
be on your way!
Make sure the pads
are evenly lined up
with the rim. If
the pads rub against
the tire, they are too
high; if they don’t
make full contact with
the rim when braking,
they are too low.
Adjust the positions
by holding the brake
pad with one hand
and loosening the nut
on the back with a
5mm Allen key.
CABLE
ADJUST WITH
5MM ALLEN KEY
SPRING
TENSIONER SCREW
5MM
ALLEN KEY

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7-Speed Tuning
PHILLIPS
SCREWDRIVER
9MM
MULTI-TOOL
01
02
To adjust the rear derailleur,
first twist the shifter until
the number 7is highlighted
on the shift knob.
Rotate the pedals until the
chain falls into the smallest
gear. Sometimes, the chain
will not go all the way to
the smallest gear at this
point. This is okay, and you
can go on to Step 03.
BARREL CABLE
ADJUSTER
CABLE
ADJUSTMENT
BO LT
H LIMIT
SCREW
L LIMIT
SCREW
SMALLEST COG
DIAGRAM
TOOLS REQUIRED

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36 37
03 05
04 06
Turn the barrel adjuster located
on the rear derailleur clockwise
until it stops. At this point, detach
the cable from the derailleur by
loosening the Cable Clamp Bolt.
We will leave the cable detached
from the derailleur until Step 05.
Once the chain falls
all the way onto the
lowest cog (this will
be 7th gear), reattach
the cable. Use a 9MM
wrench to tighten the
Cable Clamp Bolt to
secure the cable
to the derailleur.
If the chain still hasn’t
reached the smallest cog in
the chainring, you will need
to adjust the “High Gear”
limiting screw located on
the derailleur (indicated by
the letter H).
With a Phillips Screwdriver,
gradually turn the screw
counterclockwise 1/4 turn at
a time while rotating the
pedal until the chain falls
onto the smallest cog.
Rotate the pedals and try to shift
between gears. If it doesn’t shift from
7th to 6th gear in one click, then the
cable needs some additional tension.
To add tension to the cable, twist the
barrel adjuster counterclockwise 1/4
turn at a time until it can shift from
7th to 6th gear in one click.
Shift through the gears from 7th
to 1st, then back from 1st to 7th.
If the gears feel sluggish when
shifting from 7th to 1st, tighten the
cable by turning the barrel adjuster
counterclockwise. If shifting feels fine
from 7th to 1st but sluggish from 1st
to 7th, loosen the cable by turning
the barrel adjuster clockwise.
Continue to adjust the derailleur
cable until you are able to shift
between each gear with a single click.
9MM
MULTI-TOOL
The ‘High Gear’ limiting
screws are very sensitive.
We recommend using only
a 1/4 turn at a time in case
you have to revert back to its
original position.
Each gear should shift with a
corresponding “click” sound.
NOTE
NOTE
BARREL ADJUSTER
PHILLIPS
SCREWDRIVER