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  • Runtastic Speed and Cadence Bike Sensor with Bluetooth Smart Technology
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Runtastic Speed and Cadence Bike Sensor with Bluetooth Smart Technology

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Price: $86.98 & FREE Shipping
In stock.
Usually ships within 2 to 3 days.
Ships from and sold by ActivInstinct.
  • Works with top-rated Runtastic Bike Apps turning your smartphone into a cycling computer
  • Wirelessly measures biking speed and pedal cadence (rpm) for improved endurance and cycling performance
  • Uses Bluetooth Smart and Bluetooth Smart Ready technology to connect to smartphones (long battery life)
  • Easy to mount; mounting accessories included
  • Compatible with iPhone 5s/5c/5, iPhone 4s and Bluetooth Smart Ready Android devices running Android 4.3 or more recent
2 new from $59.99

Get the Runtastic Smartphone App from Amazon's App Store
Now you can download the Runtastic app for your Android device from Amazon's App Store. The uses the built-in GPS on your Runtastic equipment to map your activities and track your progress, including distance, time, speed, calories, altitude, pace, and more. Shop Now.

Frequently Bought Together

Runtastic Speed and Cadence Bike Sensor with Bluetooth Smart Technology + Runtastic Sports Armband for Smartphones (iPhone 4/5, Samsung Galaxy S3/4, BlackBerry, Nokia, HTC, LG, etc.)
Price for both: $110.72

These items are shipped from and sold by different sellers.

Buy the selected items together


Product Description

Runtastic Speed and Cadence

Improve your biking speed and endurance as you turn your smartphone into a cycling computer by pairing it with the Runtastic Bluetooth Speed and Cadence Sensor. Use with the popular Runtastic Road Bike and Mountain Bike apps to view your speed and the pedal revolutions per minute (cadence) along with the app stats including elevation gain, distance, route, calories burned and altitude. Comes with everything you need to mount the sensors onto your bike. The sensors use low energy Bluetooth Smart technology to transmit signals to your phone without draining your phone's battery. Compatible with iPhone 4S/5.

Speed and Cadence Sensors with the Runtastic App

Use these products together with the Runtastic Bike Apps and turn your bike into a cycling computer and see detailed information full of important statistics from your ride.

Runtastic Cadence 1                    Runtastic Cadence 2                    Runtastic Cadence 3


Review Statistics and Cadence Zones on Runtastic.com

Get detailed statistics and analysis of your rides on Runtastic.com

Cadence Zones

Cadence Zones

Performance Charts

Performance Charts



Product Details

  • Product Dimensions: 1.2 x 4.7 x 7.1 inches ; 3.8 ounces
  • Shipping Weight: 4.8 ounces (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B00BVY4HCG
  • Item model number: RUNSCS1
  • Batteries 1 Lithium Metal batteries required. (included)
  • Average Customer Review: 3.3 out of 5 stars  See all reviews (56 customer reviews)
  • Amazon Best Sellers Rank: #186,228 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
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Customer Reviews

I found the installation to be a bit tricky.
Angela M. Hey
With my first sync, the cadence sensor wasn't actually synced, just the speed sensor, but I had no way of knowing until my first ride.
Aaron O. Terrazas
I was ready to go until I found that I couldn't get the sensor paired to my iPhone 5.
morning fog

Most Helpful Customer Reviews

Vine Customer Review of Free Product ( What's this? )
Length: 0:39 Mins
Let me start with some background. I am currently training for a bike race and I have been researching bike computers and sensors because mine was no longer sufficient. I was rather ecstatic when I was offered this item to try out. This, I thought, would be great, as a companion to the Runtastic Heart Rate Monitor I wear (which is a great item and for which I have zero complaints). I was already using the Runtastic apps, this would be great....yeah...no.

SETTING UP. This item comes with three separate components, the magnet that attaches to the spoke in your wheel (for speed), the sensor itself (which attaches to the frame) and the cadence sensor (attaches to your pedal. The speed sensor is as easy as loosening a screw, attaching it to the spoke of the wheel and ta-da! Most bike computers work just like this. The Bluetooth sensor attaches with a specifically design rubber band (is a bit fancier than a rubber band) and plastic ties (which I do not use). The cadence sensor attaches to your pedal. You have to actually remove your pedal, insert it in the metal part and attach the pedal again. You need a pedal wrench or a good long wrench for this. It took me kicking the wrench with my foot to get it to loosen up. Let me note that the instructions and pictures included with this device are utterly useless. I watched a video from Runtastic about set up and that was just too short and too fast. I could not notice the specific alignment in any video, picture or diagram.

BLUETOOTH PAIRING. The pairing was a complete and utter nightmare that took hours of work, tinkering and imagination. I tried for over an hour to pair the device with the app and nothing happened.
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15 of 17 people found the following review helpful By James Marinas on May 22, 2013
Verified Purchase
I'm using this on an older Santa Cruz Superlight mountain bike. It has a non-standard chain stay and the cranks and spoke magnet don't align when installed as directed. Fortunately, the product still works when installed upside down (see customer picture). I've been on several rides on it already and it stays snug just with the rubber strap. I've never had to readjust it even through harsh, rocky mountain bike trails.

I'm using this with Runtastic Mountain Bike. I love tracking my performance online and on the app. It's making riding funner for me and it's making me push myself harder. I'm also using the heart rate monitor as well. I understand that this works with Strava as well. I never used it, but I might in the future.

I would have given this 4 1/2 stars due to the fact that sometimes, I have initial sync issues before starting a ride and I have to fidget with it to get the app to see it. However, once its connected, it works great. The sure-fire process I use to get this thing starts up on my iPhone 5 is:

- Close all apps
- Turn off Bluetooth
- Turn on Bluetooth
- Start the Runtastic Mountain Bike app
- Go to the Sensors -> Bluetooth Smart
- Crank my pedals until the speed and cadence icons turn green (this may take a minute)

I don't know if it is the app, product, or phone but this is what I do to get it working if it doesn't start up initially.

EDIT: Check out the item in use in one of my rides:

http://www.runtastic.com/en/users/james-marinas/sport-sessions/74336942
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The manufacturer commented on the review below
14 of 17 people found the following review helpful By C. Stephans VINE VOICE on May 23, 2013
Vine Customer Review of Free Product ( What's this? )
This seems like a cool product that I was eager to use. I installed the device on my bike and downloaded the app to my iphone 4S and signed up online. Then I could not get any connectivity with the bluetooth device. I changed out 2 good batteries and still nothing. I tried with two iphones and could not get connectivity.

Following the second recommendation by the manufacturer (see comments), the device connected and has worked on a couple short rides. The working product is great, but I'm still frustrated at banging my head against the wall trying to get it to work before learning the process that is not in the instructions...thus 4 stars for a product that is 5 stars when it works.

It is an overload of information on the bike ride that if nothing else is entertaining, and at best, gives you insight to your ride and can help you improve.

The bluetooth device comes with two ties to connect to the bike. I also tied fishing line through the holes just to ensure I wouldn't lose it on a bumpy road.

I copied some of the process below from James Marinas and added two steps, but I had to do this several times each time I have used it until it finally connected. This should definitely be front page in bold on the start up guide:

- Close all apps
- Turn off Bluetooth
- Turn on Bluetooth
- Start the Runtastic Mountain Bike app
- Go to the Sensors -> Bluetooth Smart
--Unpair all Sensors
--BT Enable off then on
- Crank my pedals until the speed and cadence icons turn green (this may take a minute)

I have had to do the above each time and wait a couple minutes for it to connect.

**Update: 6/7/13 Got it connected within a minute following the above except unpairing the sensors.
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The manufacturer commented on this review(What's this?)
May 26, 2013
Dear customer, please check the mounting of the sensors according the manual. The distance between the magnet and the sensor must not be more than 5 mm. For activating the sensors you can simulate a ride by moving the wheel. If this does not solve the problem, please switch off bluetooth in the telephone settings, switch off the phone and start the installation once more.

Most Recent Customer Reviews


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