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4iiii Precision 105 5800 Power Meter


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£266.40 £51.40 discount
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  • Free tracked delivery
  • Trustpilot review 9.2 out of 48.656 reviews

Pros & Cons

  • Features Bluetooth Smart and ANT+ signal for communication with cycling computer.
  • Also functions as cadence sensor.
  • This power meter also measures the cadence.
  • Only to be used on Shimano Hollowtech II cranksets.
Read more on what our customers have to say about this product

Specifications

Brand 4iiii
Compatible withShimano
ApplicationRoad
Measuring PositionCrank
Measurement Single-sided
Power SourceBattery
Type of axle 24 mm (Hollowtech II)
CadenceYes
CompatibilityANT+ / Bluetooth
All specifications

Description

With the 4iiii Precision 105 5800 power meter, you can take your workouts to the next level and train like a pro!

Ideal and reliable training tool
4iiii Precision 105 5800 power meter provides you with accurate and consistent data about your power and cadence. The industry-leading 4iiii Precision unit features 3D power meter technology that can measure triaxial tension on the crank arm. The Precision 105 5800 power meter is durable, lightweight and transmits data via both ANT+ and Bluetooth. Train harder and smarter.

Installation and compatibility
In addition to the 105 5800 crank, this powermeter also fits the 105 R7000, Ultegra R8000 and Dura Ace R9100 crank. The 4iiii Precision 105 5800 is easy to install and can be configured via the 4iiii Device Configuration. This app is available for Android and IOS. Through this app, you can also see the status of the CR2032 button cell battery. This battery has a service life of more than 100 hours. The power meter unit weighs only 9 grams and has a data accuracy of +/- 1%.

Find out more on our Blog

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4iiii Precision 105 5800 4iiii Precision Ultegra 6800 4iiii Podiiiium 105 R7000

73 reviews

102 reviews
Compatible with Shimano Shimano
Application Road Road Road
Measuring Position Crank Crank Crank
Measurement Single-sided Single-sided Single-sided
Power Source Battery Battery Rechargeable battery
Type of axle 24 mm (Hollowtech II) 24 mm (Hollowtech II) 24 mm (Hollowtech II)
£266.40 From £268.35 £321.60
This product View product View product

Customer photos


Reviews

9.3 / 10 Average from 73 reviews | Write a review

9.3 / 10

73 reviews
5
(61)
4
(12)
3
(0)
2
(0)
1
(0)

Pros

  • Price (5)
  • Accurate (4)
  • Accuracy (3)
  • Reliable (2)

Cons

  • None (2)
  • Fitting Instructions (1)
  • Android App Quality (1)
  • Partner app is awful (1)

Most recent reviews

9 / 10

Stuart, 9 July 2019

Good value precise power meter

Excellent good value power meter. Good accuracy. Fitting instructions and Android app could be better.

Pros

  • Price
  • Accuracy
  • Can move between bikes
  • iOS App Quality

Cons

  • Android App Quality
  • Fitting Instructions

10 / 10

James, 6 July 2019

Great training accessory.

Great for training, and pacing yourself on longer rides and hills.

9 / 10

Kate, 6 July 2019

The power meter is accurate and easy to set up.

The power meter works well with the wahoo element bolt. But the app it comes with is awful, you cannot really use it. So unless you have a compatible computer you can use don’t buy this power meter. It is accurate within a torque setting of 10, compared to 2 different quark power meters. Very good price for what it is compared to other options on the marketand so light!!

Pros

  • Light
  • Easy to set up
  • Accurate

Cons

  • Partner app is awful
  • Hard to set up with apps/computers as one sided

10 / 10

Pearse, 21 June 2019

Fantastic purchase

Great service from mantel and the product is super now i can train properly and accurate

Pros

  • Reliable
  • Great service
  • Excellent product

Cons

  • None

10 / 10

Robert, 4 June 2019

Excellent product at a rock bottom price

Top quality, easy to install power meter! You won't go wrong with 4iiii. Very quick dispatch and delivery as well as being the lowest price online!

Pros

  • Easy installation
  • Quick installation
  • Accurate
  • Sensitive

Cons

  • Not two sided

All specifications

Compatible withShimano
ApplicationRoad
Measuring PositionCrank
Measurement Single-sided
Power SourceBattery
Type of axle 24 mm (Hollowtech II)
CadenceYes
CompatibilityANT+ / Bluetooth
ColourBlack

Manufacturer specifications

• Unit weight: 9 grams
• Data accuracy: +/- 1% error margin
• Battery life: more than 100 hours driving on a CR2032 button cell battery