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Knog Nerd 12 Function Cycling Computer

by Knog
3.7 out of 5 stars  See all reviews (7 customer reviews)

RRP: £59.99
Price: £45.05 & this item Delivered FREE in the UK with Super Saver Delivery. See details and conditions
You Save: £14.94 (25%)
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Colour: Black
Only 12 left in stock (more on the way).
Dispatched from and sold by Amazon. Gift-wrap available.
Want it Friday, 21 June? Choose Express delivery at checkout. Details
  • Multi bike selection for 2 bikes
  • Current Speed
  • 12/24 hour clock
  • Trip Distance
  • Average Speed
  • Maximum Speed
  • Distance per day
  • Total Riding Time
  • Odometer
  • Scan loops through each function in sequence
  • Low Battery Indicator
  • Display Backlight

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Product details

  • Delivery Destinations: Visit the Delivery Destinations Help page to see where this item can be delivered.
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  • ASIN: B0028XY7AQ
  • Date first available at Amazon.co.uk: 2 Nov 2009
  • Average Customer Review: 3.7 out of 5 stars  See all reviews (7 customer reviews)
  • Amazon Bestsellers Rank: 28,135 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  •  Would you like to give feedback on images?


Product Description

Product Description

  • Junction: digital
  • Battery Level Indicator: yes
  • Additional Information:
    • anatomic
    • different modes through pressing on the display
    • easy tool less mounting
    • with back ground light
    • weight: 84g
    • graphic representation of acceleration ad braking
    • Multi-Bike-Selection / speed sensor and total distance for 2 bikes savable)
    • super large digits
  • Energy Saving:
    • Power Source: Battery
  • Function:
    • 2 Bike Adjustable Program: yes
    • Distance Km:
      • Total Km
      • Days Km
    • Light Function: yes
    • Speed Sensor Function:
      • actual speed km/h
      • average speed km/h
      • max speed km/h
    • Time Function:
      • display in 12/24hr modes
      • travel time
      • time

Customer Reviews

Most Helpful Customer Reviews
13 of 13 people found the following review helpful
5.0 out of 5 stars Just what I wanted 19 Mar 2010
Amazon Verified Purchase
I did a bit of research on cycle computers and decided to try this one after having used many different brands from the cheapest to the more mainstream offerings.
All have either broken or been lost during use in some way or were not practical.
So far so good with the NERD.
It is very easy to set up, took me 20 minutes as I had two bikes to measure for the wheel sizes. This is very easy and the instructions are some of the most user friendly I have come across.
Initially I thought the unit and sensor look very bulky and awkward but depending on the colour you choose it does actually look good, of course its a matter of taste..
Units are easy to read and the touch screen functionality is robust. It gives a feeling of quality. The casing is silicon and I choose red due to being able to see it in the hedges if it ever comes off.
Accuracy is spot on as with most cycle computers. I measured it over long distance and it was perfect.
Switching between bike one and two on the computer is easy and each bike retains its own wheel size and odometre reading.
The real beauty of this unit is the ease which I can take it off my mountainbike and attach it to my road bike in two minutes. No zip ties or tape nonsense. The silicon straps or belts, are very secure and the sensor has two notches for MTB and road forks. My MTB has Fox 32 forks and it fits nice. A minute later it is on a thin roadbike fork snug as you like.
The only negative I see is the spoke magnet which is poor for round spokes. Has to be tightened too much. This is a minor thing as any magnet will work with the unit. This is hardly worth mentioning though.
It is expensive but I have spent far more getting other units which were cheaper and not so nice to look at.
I recommend this highly!
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1 of 1 people found the following review helpful
4.0 out of 5 stars great 10 Dec 2012
Colour Name:Black|Amazon Verified Purchase
This is a great unit. Easy to fit, great visibility. Take some time to set up correctly, but well worth the effort. Once set up, very easy to use.
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4.0 out of 5 stars Will not attach to shock absorbers! 22 Oct 2012
Amazon Verified Purchase
I'm impressed with the Knog Nerd, it's an excellent product. Unfortunately the fork sensor uses the same rubber strap as all Knog products and it's just not long enough to attach securely around average size shock absorbers, it kept coming off :( Disappointing as I would have liked to have kept mine.
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5.0 out of 5 stars Fantastic computer... 20 Aug 2012
By Miguel
Colour Name:Red|Amazon Verified Purchase
I got this item to fit into my bicycle, since I wanted to keep track of my progress.
I have to say that Knog really did a good job on this computer: it fits really well on the bike (it doesn't move about, so it's perfect for an off-road bike, such as mine), it's very easy to put in place and it is very accurate on its measurements!
If I have one complaint, I'd say that the fork sensor has to be very close to the spoke magnet, but it's just nitpicking, as it ensures the accuracy of the various informations it gives you.
It also looks brilliant on the bike (I bought the red one and it is very good looking), and the display is really easy to read, even in direct sunlight (it also has a backlight for night riders).
All in all, I'd recommend anyone to buy it, not only because it is really helpfull to every biker, but also because it's good looking, accurate, has all the functions you need and easily fits into every bike.
I was going to buy a Cateye, but I sure am glad I dind't, since this is, in its essence, a 5Star product!!!
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5.0 out of 5 stars Knog cycle computer 23 Feb 2012
Colour Name:White
Reliable and stylish, happy with purchase. Would buy this brand again (in fact have done so for front light). Used for 6 months problem free
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0 of 1 people found the following review helpful
1.0 out of 5 stars Batteries dead on arrival 3 Mar 2013
Colour Name:Black|Amazon Verified Purchase
Do not expect at batteries to be dead on arrival and no where on this site to leave feedback other than return the item
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2 of 7 people found the following review helpful
2.0 out of 5 stars Overpriced 29 Oct 2010
By Mac
Colour Name:Black|Amazon Verified Purchase
Must say a little bit disappointed with this Knog Nerd,I bought it because I was told it had a bigger display,
perhaps it has, its claim to fame is its touch screen functions, but you have to press it so hard to make it work, I would prefer another method to change the display information. Maybe my one is a duff one, all the functions work with the extreme effort needed. If the sender unit on the front forks fell off and was lost I don't no how to contact these people in "sarl?" (where ever it is or what ever its called), and if I could get a replacement, its only held on with a rubber band. I'm sure a cheaper computer does much the same with less effort but there you go, you live and learn.
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