Rotor Inpower Flow MAS
869.08
Rotor Inpower Flow MAS
4iiii Dura-Ace R9200 Precision 3+ PRO
From 913.86
4iiii Dura-Ace R9200 Precision 3+ PRO
4iiii Ultegra R8100 Precision 3+ PRO
742.01
4iiii Ultegra R8100 Precision 3+ PRO

Rotor Inpower Flow MAS vs. 4iiii Dura-Ace R9200 Precision 3+ PRO vs. 4iiii Ultegra R8100 Precision 3+ PRO

Rotor Inpower Flow MAS
4iiii Dura-Ace R9200 Precision 3+ PRO
4iiii Ultegra R8100 Precision 3+ PRO
Rotor Inpower Flow MAS

869.08

View product
4iiii Dura-Ace R9200 Precision 3+ PRO

From 913.86

View product
4iiii Ultegra R8100 Precision 3+ PRO

742.01

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.
MAS: increases your tuning capabilities for your chainring.
Aerodynamic crank.
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.
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.
The CR2032 battery is not rechargeable, so you may need to replace it from time to time.

Specifications

Measuring Position
Crank
Crank
Crank
Power Source
Battery
Battery
Battery Type
CR2032
CR2032
BCD
130 mm
110 mm
Ratio
50 / 34
52 / 36
54 / 40
50 / 34
52 / 36
Crankset axle fit
BB30 (30mm)
Shimano Hollowtech II (24 mm)
Shimano Hollowtech II (24 mm)
Crank Length
172.5 mm
175 mm
165 mm
170 mm
172.5 mm
175 mm
165 mm
170 mm
172.5 mm
175 mm
Compatible with
Shimano
Shimano
Compatibility
ANT+
Yes, with cycling navigation with Bluetooth/ANT+
ANT+
Yes, with cycling navigation with Bluetooth/ANT+
ANT+
Single-/dual sided
Single-sided
Dual-sided
Dual-sided
Application
Road
Road
Road
Cadence
Yes
Yes
Yes
Generation
3rd
3rd
Chainring Type
Round
Round
Colour
Black
Red
Black
Black
Supports 'Apple Find My'
Yes
Yes
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