iBike Newton+ User manual

iBike®Newton+TM Power Meter
Operating Instructions
OS 4.13 and higher
November 2013
PROTECTED BY ONE OR MORE OF THE FOLLOWING US PATENTS
7,387,029; 7,377,180; D528,451

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These instructions are divided into two parts:
•PART ONE provides Easy Start instructions for
all users—quick setup and Newton+ calibration
•PART TWO describes basic features of interest
to all Newton+ users
•PART THREE describes advanced features
To learn how to install your iBike Newton+ mount
and sensors, please refer to the instructions
included separately.
Other resources:
Enjoy the large community of iBike owners participating
in the iBike Forum:
www.ibikeforum.com
OR, please email us at
[e-mail]
Also, check out our blog:
www.ibikeblog.com
Make sure to visit our website frequently to get the very
latest in iBike product, software, and information
updates:
www.ibikesports.com

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PART ONE—Easy Start 3-6
PART TWO
BASIC OPERATION
TOPIC PAGES
•Newton+ Hard Reset Procedure 7
•Fine-tuning calibration, and sensor pairing 7-8
•Setting and using the Newton+ Profile 8-11
•Newton+ features and buttons 12-15
•Newton+ Trip Information and Ride Files 16
•Starting your Newton+ on each day’s ride 17
•Setting/Updating starting elevation 17-18
•Setting Display Filtering time 18
PART THREE
ADVANCED FEATURES
TOPIC PAGES
•Introduction to USER and RACR sequences 19
•USER sequence 20
•Coast downs (optional) 21-23
•Setting wind speed display, temperature 24
•Fitness Test (FTP Test) 25-29
•RACR sequence 30-33
•Day-to-day Setup screens 34-35
•Indoor Trainer feature (Optional) 36
•Special Newton+ Features 37-41
•PowerStrokeTM Data Recording 42
•Troubleshooting 43-44
•About FTP, NP, TSS, and IF measurements 45-47
•Frequently Asked Questions 48-51

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PART ONE: Easy Start
Getting your Newton+ going is faster and easier than ever. Here’s what you will
do:
1) Charge your Newton+’s battery
2) Attach the Newton+ mount to your bicycle
3) Attach the speed-cadence sensor to your bike
4) Calibrate your Newton+ with an easy 10-15 minute ride
THAT’S IT!!! Details on each step follow.
1. Charge your Newton+’s battery
Your Newton+ includes a rechargeable battery. The battery is permanently installed in the
case and cannot be removed.
Before using your Newton+ for the first time, make sure to fully charge your battery.
Attach the USB cable to the connector located on the bottom of the Newton+ case, then
plug in the USB connector to your computer port, or to any USB power source. While
charging, the middle window will show “batt%” and the bottom window will flash “chrg”
(charging), followed by the percentage charge of your battery. When your Newton+ is fully
charged the bottom window will show “100” (100%).
Your Newton+ battery will charge fully in about 2 hours.
A note on Newton+ battery life
Your Newton+ battery will provide you about 20 hours of continuous ride time between
recharges, in cold weather or warm.
Of course, each time you plug your Newton+ into your computer, or any USB charger
device, the Newton+ battery will recharge very quickly.
You can check the percentage of battery energy remaining in your Newton+ by clicking the
left arrow one time to find “Batt %”. The amount of battery charge in your Newton+ is
shown in %. Wait a few seconds for the battery charge indication to stabilize.
TIP: While in the battery screen you can turn your Newton+ off by press-holding the
center button.
TIP: During the winter months and the “off” season, recharge your Newton+ once every
two weeks. This will extend battery life.
You can return your Newton+ to the main screen by clicking the center button.

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2. Attach the mount to your bicycle
You’ll need to attach your Newton+ mount to your stem, handlebars, or steer tube
(depending on which kind of mount you purchased). Follow the printed instructions
included separately.
Make sure to locate your mount so that your Newton+, when attached, has an
unobstructed view of the wind.
Make sure to remove the double-sticky tape from the mount top and bottom. This tape
helps keep the mount solidly attached to the handlebars and stem.
3. Attach the Speed/Cadence sensor to your bike
Attach your iBike speed/cadence sensor, and speed and cadence magnets, to your bike,
using the printed instructions included separately.
TIP: MAKE SURE THE MAGNETS PASS BY THEIR RESPECTIVE SENSORS WITH A
SEPARATION OF ABOUT 1-2 COIN WIDTHS. THIS SMALL GAP ASSURES THAT THE
SENSORS WILL DETECT THE PRESENCE OF THE MAGNETS.
TIP: IBIKE SENSORS SHIPPED WITH YOUR NEWTON+ HAVE BEEN PRE-PAIRED AT THE
FACTORY AND ARE READY TO USE. THERE’S NO NEED TO DO A “SCAN”
ANT+ SENSOR PAIRING
NOTE: YOUR NEWTON+ HAS ALREADY BEEN
PAIRED WITH ITS SPEED/CADENCE SENSOR.
Your Newton+ will work with any wireless ANT+ sensor. If you’re using any ANT+ sensor
other than the speed/cadence sensor shipped with your Newton+, you will need to do
sensor pairing.
Install your speed/cadence sensor on your bike, following the instructions included
separately. If you use an HR strap, fasten it to your body.
To pair your Newton+ to your ANT+ sensors, press-hold the TOP AND BOTTOM arrows
simultaneously, until a “Scan” message appears. After a few moments the pairing process
will be completed and your Newton+ will remember permanently the wireless IDs of your
sensors. ANT+ speed, cadence, speed/cadence, HR, and DFPM sensors can be read.

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4. Calibrate your Newton+ with a “Cal Ride”
To calibrate your Newton+ you need about 10 minutes to perform a Cal Ride. The Cal Ride
customizes your Newton+ to your bike, and gets it ready for power measurements. This is
an easy, leisurely ride; there’s no need to race, and no reason to worry!
Here’s how to do the Cal Ride:
1. Pick a quiet, low-traffic place to do a solo (no drafting allowed) Cal Ride.
2. Wake up the Newton+. Speed is shown in the top window. You’ll see “----W” in
the center window, indicating that your Newton+ requires a Cal Ride, and that it
can’t report power numbers until after the Cal Ride has been completed.
3. Start riding. After 8 seconds the Newton+ screen changes. “Cal” appears in the
middle window, and “Start” flashes in the bottom window.
4. When you’re ready to start the Cal ride, click the center button to start the
Cal Ride.
5. The top window shows bike speed, the center window alternates between “Cal”
and distance traveled, and the progress bar fills as you ride.
6. During the Cal Ride you can bike at a leisurely pace, and it’s OK to stop if
needed. Your Cal Ride will be unaffected.
7. Ride for five minutes, until “go back, turn 180 degrees” flashes.
8. If you still need to keep going a ways before turning safely, it’s OK. When safe,
slow to a stop, turn around, and ride backto the starting point.
9. The progress bar empties as you ride back. Keep riding until the progress
bar is completely empty, and “Cal Done” flashes.

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NOTICE: ONCE BEGINNING YOUR CAL RIDE, IF YOU WISH TO TERMINATE IT, PRESS-
HOLD THE CENTER BUTTON FOR TWO SECONDS. THIS ABORTS THE CAL RIDE AND
LEAVES ANY PRIOR RESULTS UNCHANGED.
IMPORTANT: UNTIL YOU COMPLETE THE CAL RIDE, YOU WILL SEE “---W” IN THE MAIN
SCREENS, INDICATING THAT YOUR CAL RIDE HAS NOT BEEN COMPLETED AND THAT
YOUR NEWTON+ IS NOT SET UP PROPERLY. YOU MUST COMPLETE THE CAL RIDE BEFORE
USING YOUR NEWTON+ FOR ANY BIKE RIDE MEASUREMENTS.
BASIC SETUP OF YOUR NEWTON+ IS NOW COMPLETE AND YOU’LL GET
CONSISTENT RESULTS.
TO FINE-TUNE YOUR NEWTON+’S ACCURACY WITH ISAAC SOFTWARE, SEE
INSTRUCTIONS IN THE NEXT SECTION

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PART 2: BASIC OPERATION
PERFORMING A “HARD RESET” WITH THE
NEWTON+
A Hard Reset reboots your Newton+’s computer.
In the Newton+, you do a “Hard Reset” by doing the following:
Simultaneously press-hold the left, bottom, right, and center buttons. The screen
will go blank. Then, release the button and the Newton+ will restart.
All of your stored information will be retained, with the exception of date and time.
FINE-TUNING NEWTON+ CALIBRATION WITH
ISAAC SOFTWARE
You can fine-tune your Newton+’s calibration even more by entering Basic Information with
Isaac software. It’s simple to do, and we strongly recommend you take a few minutes to
do so.
The Isaac software, included with your iBike Newton+, provides an extremely simple way
to enter your basic information. Install the Isaac software on your computer, then connect
your Newton+ to your computer and launch the Isaac software.
“Dial-In Wizard”
The “Dial-In” wizard increases the accuracy of your calibration. Each time Isaac detects
that you’ve done a Cal Ride that started from a factory-default profile, you’ll be prompted
to enter information using the “Dial-In Wizard”. Just answer a few questions regarding
your weight, height, ride position, and FTP (if you don’t know what FTP is, don’t worry—
leave the number at “81”, the default value. To learn more about FTP, please refer to pgs
45-47 of these instructions).
“Set-Up Device Wizard”
If you prefer, you can use the “Device/Device Setup…” wizard to enter your basic
information BEFORE you perform the Cal Ride. If you use the Setup Device wizard prior to
the cal ride, then your Newton+ will be fully dialed-in immediately after the cal ride is
completed.
TIP: If you use the Setup Device wizard prior to a Cal Ride, the Dial-In wizard won’t
appear after your Cal Ride is completed.

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How to use the Device/Setup Device wizard
and follow the prompts on the computer screen to enter your information. After you’ve
completed your data entry, click the “Send Profile to iBike” button. Your Newton+ data will
be updated and your Newton+ will be dialed-in.
After completing the Basic Information prompts, attach your Newton+ to your bike and
proceed to Sensor Pairing.
TIP: YOU CAN FINE-TUNE YOUR NEWTON+ DIRECTLY, WITHOUT A COMPUTER,
USING THE “FAST START SEQUENCE” AVAILABLE THROUGH SETUP. ENTER SETUP,
SCROLL TO “NO FAST START”. CLICK THE CENTER BUTTON; “NO” FLASHES. CLICK
ANY BUTTON TO SELECT “YES”. CLICK THE CENTER BUTTON. THEN, CLICK THE UP
ARROW TO ENTER YOUR DATA. TO CHANGE DATA, CLICK THE CENTER BUTTON.

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NEWTON+ “SETUP” MODE
All of the advanced setup and calibration steps are accessed through the Set-Up mode.
How to enter the Set-Up mode
1. Click any button to wake-up the Newton+
2. Press and hold the up-arrow for about 2 seconds (UP-ARROW FOR SET-UP); the
words “set up” will appear. When the set-up screen appears release the button.
How to exit the Set-Up mode
1. Press-hold the UP arrow for two seconds, OR
2. Do not press any button for 30 seconds.
NAVIGATING THE NEWTON+ SETUP
SCREENS
Once entering the “Setup” mode (press-hold up arrow for two seconds), scroll to any setup
screen by clicking the up or down arrows located on the red button:
Click the up arrow: advance to the NEXT setup screen,
Click the down arrow: return to the PREVIOUS setup screen
Each setup screen displays one step of the Newton+’s setup process.
Setup screens are organized like a Rolodex. You can scroll forwards and backwards to any
setup screen. When you reach the final screen and click the up arrow to advance to the
next screen, you will return to the first screen.

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THE NEWTON+ PROFILE
The Basic Information you entered with the Isaac software, in combination wireless sensor
Pairing and Cal Ride, together form a “Profile”, a description of all the things that make
your Newton+ work properly with you and your particular bike.
Your Newton+ can store up to four Profiles in its memory, and your Isaac software
can store as many profiles as you like. Any four of the profiles stored on your Isaac
software can be uploaded into your Newton+.
IMPORTANT: TO LEARN HOW TO STORE A PROFILE ON YOUR COMPUTER AND TO LOAD A
PROFILE INTO YOUR NEWTON+, REFER TO THE “ISAAC SOFTWARE INSTRUCTIONS”.
By default, your Newton+ is set to Profile 1. So, all of the information you gathered as part
of your original Newton+ setup is stored in profile 1.
You can create up to four different profiles and store them in your Newton+’s memory. This
is useful if you own two bikes or have two different riding positions (for example, hoods
and TT).
Here is how to select a different profile:
Enter Setup and click the up arrow repeatedly to find the Set Prof (Set Profile) screen. The
number in the top window shows the profile currently selected for your Newton+. In the
screen below all Setup data you have entered and any calibrations you have performed are
stored in “Profile 1”.
To select a different profile click the center button. Then, click the up arrow to change the
profile number you wish to select (1-4). To accept your choice, click the center button.

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IMPORTANT: WHEN SHIPPED FROM THE FACTORY, PROFILES 2-4 HAVE FACTORY-
DEFAULT PARAMETERS. WHEN YOU FIRST SELECT PROFILE 2-4, YOU WILL NEED TO
PERFORM A “SCAN” AND “CAL RIDE” TO SET THAT PROFILE FOR YOU AND YOUR BIKE.
USING PROFILES
If you have three different profiles stored in your Newton+, say for three different bikes, to
use your Newton+’s Profile 3 with bike #3, enter setup, scroll to Set Prof, click the center
button, then click the up arrow to select “Prof 3”, then click the center button to accept.
Then, exit setup. Your Newton+ will now load all the settings for Profile 3 into memory and
you’re ready to ride.

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USING NEWTON+ BUTTONS AND FEATURES
This section describes the functions and features of the five control buttons on your iBike
Newton+ (center button, up, down, left, right arrow).
Center Button: BIKE COMPUTER AND POWER SCREENS
The Newton+ has two main screens:
obike computer screen
opower screen
The bike computer screen shows bike speed, trip distance, and trip time. The power screen
shows speed, power, cadence, Heart Rate (if HR strap is used), and calories.
Bike Computer Power
Click the center button to toggle between each main screen.
NOTICE: ON THE BIKE COMPUTER SCREEN, THE MIDDLE WINDOW ALTERNATES
AUTOMATICALLY BETWEEN DISTANCE AND POWER.
Top Arrow: AVERAGE (AVG) AND MAXIMUM (MAX) SCREENS
Clicking the top arrow toggles between the average and maximum values for your ride, of
your current screen’s display:
oClick the up arrow once to see average values (illustration shows average
values for Bike Computer screen).

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oClick top arrow again to see max values.
IMPORTANT: To return to the main screen, click the center button.
Bottom Arrow: HILL SLOPE AND WIND SPEED DISPLAY
No matter which main screen you are using, at any point in your ride you can find out the
slope of the hill you’re climbing, or the amount of head wind or tail wind.
oClick the down arrow once to see hill slope in the top window.
oClick the down arrow again to see opposing wind speed in the top window.
To return to the main screen click the center button.
TIP: PRESS-HOLD THE BOTTOM ARROW FOR TWO SECONDS TO TURN “AUTO-HILL SLOPE
DISPLAY” ON OR OFF. SEE BELOW FOR MORE DETAILS ABOUT AUTO-HILL FUNCTION.

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Right Arrow: ENVIRO (Environment) SCREENS/FIT TRAIN MODE
You can learn useful information about your ride by clicking the Enviro button (right arrow).
oClick the right arrow: Temperature and current time are displayed.
oClick the right arrow again (enviro screen 2): current hill slope, wind speed,
and current elevation are displayed
oClick the right arrow again (enviro screen 3): main screen is shown.
SPECIAL FEATURE: AFTER ENABLING THE “FIT TRAIN” FEATURE IN THE RACR
SEQUENCE, YOU CAN START PRE-PROGRAMMED WORKOUTS BY PRESS-HOLDING THE
RIGHT ARROW FOR TWO SECONDS. SEE BELOW FOR MORE DETAILS ABOUT FITNESS
TRAINING SCREENS, AND HOW TO ENABLE THE FEATURE.
Left Arrow: TOTAL SCREENS/LAP SCREEN
You can get summary statistics for the entire ride with the “Total” screens. Total screens
are shown by clicking the left arrow.
•Click left arrow once: Battery charge % is shown. TIP: When battery charge %
screen is shown, you can press-hold center button to turn Newton+ off
•Click left arrow again: Total energy expended (in kilojoules or KJ) and calories
(Kcal) are displayed.
•Click left arrow again, ride distance traveled and elevation gained are displayed.
SPECIAL FEATURE: IF YOU HAVE SELECTED “TSS ON” IN THE RACR SEQUENCE, THE
NEXT THREE SCREENS SHOW NORMALIZED POWER (NP), INTENSITY FACTOR (IF) AND
TRAINING STRESS SCORE (TSS).
•Click the left arrow again and “x% Full” shown (“x” is a number between 0 and 99).
This screen indicates the amount of memory used (logged) by your ride files. When
the screen says 0% full your ride memory is empty; when it says 99% full your ride
memory is full.
TIP: THE NEWTON+ RECORDS AT ONE SECOND INTERVALS (155 HOURS OF DATA
RECORDING) OR FIVE SECOND INTERVALS (768 HOURS OF DATA RECORDING). YOU CAN
SELECT THE RECORD INTERVAL IN THE SETUP SCREEN. THE NEWTON+ HAS 4x AS MUCH
RECORDING CAPACITY AS THE NEWTON.

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TIP: YOU WILL GET WARNING MESSAGES WHEN YOUR RIDE MEMORY IS 80% FULL AND
90% FULL. DOWNLOAD YOUR RIDES AS SOON AS POSSIBLE OR YOU MAY LOSE YOUR
MOST RECENT RIDE FILE!
TIP: YOU CAN ERASE YOUR MEMORY WITH A NEWTON+ COMMAND THAT LOCATED IN
THE SETUP MENU. THE “ERAS DATA” COMMAND CLEARS ALL YOUR MEMORY AND ERASE
ALL RIDES STORED IN YOUR NEWTON+.
•Click the left arrow again: Total odometer and total ride time are shown.
•Click the left arrow again: return to main screen
SPECIAL FEATURE: PRESS-HOLD THE LEFT ARROW FOR TWO SECONDS TO MARK YOUR
LAP TIME INFORMATION. SEE PAGE 37 FOR MORE DETAILS ABOUT LAP TIMER.
SPECIAL FEATURE: PRESS-HOLD THE LEFT ARROW FOR FIVE SECONDS TO ENTER LAP
REVIEW SCREENS. SEE PAGE 37 FOR MORE DETAILS ABOUT LAP REVIEW.

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NEWTON+ TRIP DATA AND RIDE FILES
iBike Newton+ “Trips”
The Newton+ gathers, stores, analyzes, and displays data as “trips”. Information from
each trip is recorded in a “Ride File”.
Generally, each time you start a new day’s ride you’ll want to start a new trip. A simple
and fast “Trip-Reset” (described below) closes the previous ride file, creates a new
Newton+ Trip, and opens a new ride file.
Also, if your Newton+ sleeps for more than 4 hours it will automatically begin a new Trip
and ride file.
A “Trip Reset” starts a new ride file and resets the Newton+ screens with zero readings of:
•Trip odometer
•Trip time
•Lap Timer and lap stats
•Instantaneous, average and maximum:
Power
kilojoules
speed
hill slope
wind speed
elevation gain
Starting a New Trip (Trip-Reset):
You can start a new trip and new ride file at any time. Here is how:
1. Click and hold the center button for two seconds.
2. The screen says “trip reset”. The word “trip” does not flash and the word
“reset” does flash.
3. To confirm your trip-reset, click the center button again. Both words
(“trip”, “reset”) will flash, then the main screen will return.
4. If you decide you DON’T want to complete the trip-reset, cancel the trip reset
by waiting for four seconds (NOT RESET” WILL APPEAR), or by clicking any
button EXCEPT the center button.
IMPORTANT: UNLESS YOU CONFIRM THE TRIP RESET BY CLICKING THE CENTER
BUTTON A SECOND TIME, YOU WILL NOT COMPLETE THE TRIP RESET AND YOU WON’T
START A NEW RIDE FILE!
TIP: You can do a trip reset any time, even while riding.

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HOW TO START YOUR NEWTON+ PRIOR TO A RIDE
Each time you ride with the Newton+, follow these simple steps:
1) Attach your Newton+ to your mount
2) Click the center button of your Newton+ to awaken it.
3) Start riding.
SPECIAL FEATURE: setting starting elevation
Your Newton+ determines altitude (elevation) from barometric pressure measurements.
For correct elevation measurements, the Newton+ has to be “told” the reference elevation
that corresponds to the currently measured value of barometric pressure.
To set the reference elevation, go into Setup and click the top arrow until you see the “Alt”
screen. Click the center button and set the number to the correct elevation (in this
example, 15 feet).
Then, click the center button to accept. The elevation number you set in this step is
memorized, and can be easily recalled later, whenever your rides begin from the same
location.
Recalling Starting Elevation
Many people start their rides from the same place, so the starting elevation is the same.
However, because weather and barometric pressure vary from day to day, the elevation
shown on the Newton+ screen can change considerably. For example, in the Enviro screen
shown below, the reported elevation has drifted to -71 feet due to weather changes, even
though at this particular location the actual elevation is 15 feet.
To set the correct elevation, while in the Enviro/Tilt-Wind-elevation screen, press-hold the
center button for a few seconds. The current elevation will be updated to the reference

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elevation memorized earlier in the Set Alt step.
SPECIAL FEATURE: Setting Display Filtering Time
Power measurement is extremely sensitive, so much so that your watts can vary
considerably even within a pedal stroke. Thus, wattage measurements can be jumpy.
The Newton+ includes a “filter” that smooths out wattage numbers displayed on your
screen. To access the filter, go to Setup/”Set Filt” (Set Filter). The number in the top of
the screen shows your current filter setting, in seconds. Available choices are 0 (no
filtering), 2 (2 second), 3, 5, 10, and 30 second filtering. For example, when set to “5”,
the wattage number currently displayed on your Newton+ screen is averaged over a 5
second period.
If you’re a racer who does a lot of sprinting, then a 0 or 2 second filtering will give you very
fast response; however, your wattage display will be a bit jumpy.
For normal training and riding, a 3 or 5 second filtering is a good choice.
For long endurance and TT rides at a constant pace, 10 or 30 second filtering will give you
very smooth readings.
To change the filtering number click the center button, then select your choice with the top
arrow. Click the center button to save.
NOTE: NO MATTER WHICH DISPLAY FILTER SELECTION YOU MAKE, YOUR RIDE FILE DATA
WILL BE RECORDED WITHOUT ANY FILTERING, AND WITH HIGHEST SENSITIVITY.
CONTROLS IN THE ISAAC SOFTWARE WILL ALLOW YOU TO APPLY SMOOTHING FILTERING
TO YOUR RIDE FILE INFORMATION DISPLAYED IN THE ISAAC WINDOWS.

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PART THREE: ADVANCED FEATURES
GETTING MORE FROM YOUR NEWTON+: “USER”
AND “RACR” SEQUENCES
For most cyclists it is not necessary to use the USER and RACR sequences; however, there
are some extra features available that can be accessed from these sequences.
The USER sequence contains features and settings of value to many iBike Newton+ users.
The RACR (racer) sequence contains features and settings of interest to advanced users
and racers.