ROTOR Powermeter Set | PowerPack Road INpower Crank 2x | Direct Mount Oval
The Rotor PowerPacks offer you an inexpensive way to equip your bike with a high-end power meter.
Thanks to the measurement technology integrated in the crankshaft, the INpower crank does not require any visible sensors that would detract from the appearance of the bike. The weight of the system is also minimalist. The INpower version weighs just 524 grams (with a crank arm length of 172.5 mm). This is made possible by Rotor's Trinity Drilling System, which uses milled crank arms made from ultra-light 7075 aluminium. The large outer diameter of the crank arms provides the necessary rigidity. The system is powered by a standard AA battery, which is concealed behind a rotating, sealed cap on the crankshaft. This means that the battery can be easily replaced after a running time of approx. 300 hours. The data is transmitted using the universal ANT+ protocol.
Another highlight of the system is the TORQUE 360 evaluation option. With the help of Rotor's proprietary software, it can be used to analyze the torque curve during a pedal rotation. This allows weaknesses between the left and right leg or an out-of-round pedal stroke to be detected. This measurement technology is particularly valuable for riders who use Rotor's oval Q-ring chainrings, as the software can use the OCA (optimized-chainring-angle) system to determine the optimum position of the Q-rings based on the torque curve. This allows the rider to apply their power to the pedals even more effectively. With the proven 30 millimeter UBB crankshaft, the system is compatible with all common bearing standards (except BB90/95) in conjunction with Rotor's UBB bottom bracket.
The Direct Mount standard is compatible with the Rotor ALDHU chainrings, which are available both as a lightweight one-piece chainring/spider combination and as classic chainrings that are attached to the crank via the optional ALDHU 2-piece spider. Only a 10 millimeter hex key is required to adjust and mount the chainrings and crank.
2x chainring-spider combination | oval
The 2-speed chainring combination milled from a block of 7075 aluminum is mounted directly on Rotor's modular road bike crank systems. This design with integrated spider saves 30 grams compared to the combination of spider and chainrings. The OCP system (Optimum Chainring Position) has been further refined for optimum adjustment of the oval Q-Rings. The position of the chainrings can be adjusted in 1-degree steps using a combination of different positions of the crank arms on the crankshaft and a finely graduated spider mount.
Technical data:
Area of application: Road bike, triathlon
Material crank arms: Aluminum 7055
Material chainrings: Aluminum 7075
Crankshaft material: Aluminum 7075
Crankshaft diameter: 30 mm
Crank length: 170 or 172.5 mm
Bolt circle diameter: -
Spider: 4-arm spider integrated into the chainring
Gear steps: 52-36 or 50-34 teeth
Ovalization: 12.5%, position adjustable in 1° steps
Q-factor: 148 mm
Bottom bracket compatibility: BSA, ITA, BBright, BB386 EVO, BB30, BB86, PF30, BB92/89 (for 30 millimeter shaft)
Battery: AA cell
Battery life: approx. 300 hours
Transmission standard: ANT+, Bluetooth Smart
Water resistance: yes (IPX7)
Measuring strip power meter: 4 in the crankshaft
Color: black
Weight according to manufacturer: n/a
Weight self-weighed: crank arms, crankshaft including power meter - 524g (172.5 mm); chainring-spider combination - 183g (52-36 teeth)
Scope of delivery: Crank arms (left, right), crankshaft with integrated power meter (without battery), adapter for various bottom bracket standards, direct mount lockring tool and 1x Rotor ALDHU 2x chainring-spider combination oval
Assembly instructions can be found here.
Please note the information on battery regulations .
