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4iiii Precision R8000 Power Meter


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446.26€ 10.16€ discount
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  • Free tracked delivery to Ireland
  • Trustpilot review 9.2 out of 48.689 reviews

Pros & Cons

  • Very lightweight.
  • Tri-axial measurement provides very accurate data.
  • Mounting, calibration, and pairing with a cycle computer is very simple.
  • Less accurate than a double-sided power meter.
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

The 4iiii R8000 power meter is a lightweight design and adds only 9 grams to the standard Shimano crank. This makes it the lightest power meter on the market. The power meter has a very accurate measurement with only +/-1% deviation. The 4iiii R8000 power meter determines your total power, but is based on the power that’s generated by your left leg.

The 4iiii R8000 power meter can be installed easily, and the configuration is done with 4iiii Device Configuration. This app is available for Android and iOS. With this app, you can also check the state of the CR2032 button cell battery. This battery lasts for more than 100 hours of riding. The power meter unit weighs only 9 grams and the measurement deviation is only +/- 1%.


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Compatible with Shimano Shimano
Application Road Road Road Road
Measuring Position Crank Pedal Crank Spider
Measurement Single-sided Single-sided Single-sided Dual-sided
Power Source Battery Battery Battery Battery
Type of axle 24 mm (Hollowtech II) 24 mm (Hollowtech II) GXP
446.26€ 457.39€ 508.21€ From 559.04€
This product View product View product View product

Reviews

9.0 / 10 Average from 5 reviews | Write a review

9.0 / 10

5 reviews
5
(3)
4
(2)
3
(0)
2
(0)
1
(0)

Pros

  • Easy to quickly swap between bikes (1)
  • Lightweight (the lightest available) (1)
  • Unobtrusive (but check frame clearance) (1)
  • Waterproof (1)

Cons

  • Left hand readings only (1)

Most recent reviews

10 / 10

Glenn, 25 July 2019

Accurate, convenient & relatively good value.

Assembly on the bike and set up is easy, data recording is excellent and pre ride calibration is straightforward and swift. No issues to note as yet, been in use for several weeks without issue. Great for my training despite not being twin sided, as I do not find this to be a problem.

Pros

  • Easy to use
  • Easy to quickly swap between bikes
  • Lightweight (the lightest available)
  • Unobtrusive (but check frame clearance)
  • Waterproof

Cons

  • Left hand readings only

9 / 10

Roberto, 24 June 2019

Prodotto di buona qualità

Comprato per la mia BdC. Sono rimasto così soddisfatto che successivamente ne ho preso un altro (sempre 4iiii Precision) anche per la mia MTB. È forse leggermente più costoso di altri, ma la qualità si paga.

Pros

  • Molto accurato

Cons

  • Prezzo
  • L'app Android potrebbe essere migliorata

8 / 10

Torben, 20 May 2019

Nem at montere og computeren hargod forbindelse.

8 / 10

Peter, 18 September 2018

Mooi, accuraat en eenvoudig te monteren

Als je een powermeter zoekt die je niet helemaal de kop kost, doet wat ie moet doen, je cadans ook nog eens meet en er mooi uit ziet, dan is dit zeker een aanrader!

Pros

  • Licht
  • Eenvoudige montage
  • Cadansmeter
  • Mooi

Cons

  • Alleen links
  • Nog steeds een aardige investering

10 / 10

John, 27 June 2018

Top product voor een scherpe prijs

mooie afwerking, makkelijk te koppelen met Wahoo. Via 4iiii-app makkelijk dingen aanpassen en kalibreren.

Pros

  • afwerking
  • afmetingen sensor
  • instellingen via App

All specifications

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

Manufacturer specifications

• Weight: 9 grams
• Precision of measurement: +/- 1% deviation
• Battery lifespan: more than 100 hours of riding with one CR2032 button cell battery

Customer Service
+44 20 3695 9922
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