Rotor Inpower Rex 2.1
3142,90
Rotor Inpower Rex 2.1
4iiii Ultegra R8100 Precision 3+ PRO
3198,50
4iiii Ultegra R8100 Precision 3+ PRO

Rotor Inpower Rex 2.1 vs. 4iiii Ultegra R8100 Precision 3+ PRO

Rotor Inpower Rex 2.1
4iiii Ultegra R8100 Precision 3+ PRO
Rotor Inpower Rex 2.1

3142,90

View product
4iiii Ultegra R8100 Precision 3+ PRO

3198,50

View product

This is what our customers think

Reviews
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Pros
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Cons
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According to the product specialist

Pros
Accurate power readout.
Easy to install.
The unique spindle makes it compatible with virtually any frame.
A double-sided power meter allows you to measure the power transmission of both legs individually.
Thanks to the Automatic Terrain Selector, you are assured of accurate power measurement on different types of terrain.
With an IPX7 waterproof rating and a battery life of up to 550 hours, you are guaranteed endless fun.
Very accurate force determination with a deviation of up to 1%.
Suitable for Shimano 12-speed cranksets.
Cons
Left-only measurement.
ANT+ only.
The CR2032 battery is not rechargeable, so you may need to replace it from time to time.

Specifications

Measuring Position
Crank
Crank
Power Source
Battery
Battery Type
CR2032
BCD
76 mm
Ratio
50 / 34
52 / 36
Crankset axle fit
BB30 (30mm)
Shimano Hollowtech II (24 mm)
Crank Length
175 mm
160 mm
165 mm
170 mm
172.5 mm
175 mm
Compatible with
Shimano
Compatibility
ANT+
Yes, with cycling navigation with Bluetooth/ANT+
ANT+
Single-/dual sided
Single-sided
Dual-sided
Application
MTB
Road
Cadence
Yes
Yes
Generation
3rd
Chainring Type
Round
Colour
Black
Black
Supports 'Apple Find My'
Yes
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