Rotor's new 2INpower SL is the "lightest dual sided power meter ever"

Rotor claims to have won the light weight top trumps with its new 2INpower SL

Rotor 2INpower SL lightest dual-sided power meter
(Image credit: Rob Spedding)

Rotor is claiming to have won the game of power meter top trumps, with its new Rotor 2INpower SL. The new power meter is said to be the lightest dual sided power meter on the market, at 530 grams for a 170mm crank length - that's a huge 15 per cent weight saving on its predecessor. The new 2INpower SL will retail at $1,099/£860.

As well as a claimed accuracy of ±1.5 per cent, the new dual sided system is still compatible with a standard 110x4 bolt diameter circle, and can also be mated to direct mount 1x and 2x drivetrain setups. Other features include there being no need for rider calibration, as well as IP67 waterproofing certification - both of which will be great news for adventure riders.

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Rotor 2INpower SL specification
Claimed weight530 grams (170mm cranks, without chainrings)
Claimed accuracy±1.5 percent
Available crank lengths165mm, 170mm, 172.5mm and 175mm
Water proof ratingIP67
Battery life250 hours (rechargable)
ConnectivityANT+, Bluetooth

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Joe Baker
Tech Writer

Joe is Cycling Weekly's tech writer. He's always had a love for bikes, since first riding a two wheeled steed before the age of four. Years down the line, Joe began racing at 16, and enjoyed great experiences internationally, racing in Italy, Spain and Belgium to name a few locations. Always interested in tech, Joe even piloted his Frankenstein hill climb bike to a Junior National Title in 2018.  After taking a step back from elite level racing in April 2022, Joe joined our team as a freelancer, before becoming Tech Writer in May 2023.