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Rotor INspider ALDHU Powermeter Crankset - 24mm | Round

Rotor INspider ALDHU Powermeter Crankset - 24mm | Round

More flexibility through the modular system

The Rotor INspider is a powermeter for all types of bikes, from road bike to MTB. The modular system allows a quick change and provides the necessary flexibility. Together with the lightweight ALDHU crank arms and round aero chainrings, this combination is aimed primarily at road cyclists and triathletes.

The INspider has a rechargeable battery and coated electronics and is IPX7 water resistant and sealed accordingly. The power of the two legs is determined inside the spider via 4 counter-rotating strain gauges. The recorded data of power, cadence and TORQUE 360 provide the necessary values for the optimal chainring angle (OCA) as well as the optimal chainring position (OCP).

The ALDHU crank is equipped with OCP Mount technology, which allows the rider to fine-tune the alignment of oval Q-Rings chainrings in 1-degree increments. The diameter of the shaft is 24 mm.

The round chainrings are compatible with all Rotor cranks with BCD110x4 spider or INspider powermeter and offer fast and precise shifting, attractive weight and a more aerodynamic and aggressive look.


  • connectivity: ANT+, Bluetooth Smart
  • data: power | cadence | torque effectiveness | pedal smoothness
  • Rotor data: OCA | OCP | TORQUE 360
  • type of measurement: left, right
  • measurement accuracy: +/- 1.5 %
  • battery: lithium-ion, rechargeable with USB cable
  • operating time: approx. 200 h
  • water resistance: IPX7

Specifications of the Rotor INspider ALDHU crankset

  • sizes: 170 | 172.5 mm
  • diameter shaft: 24 mm
  • material shaft: steel
  • Q-factor: 147.5 mm
  • chainring: round
  • number of teeth: 52/36
  • chain line: 43.5 mm
  • bolt circle diameter: 110x4

Scope of delivery: crankset without bottom bracket with 52/36T chainrings and INspider powermeter

Fact Sheet of Rotor INspider ALDHU Powermeter Crankset - 24mm | Round

Product Name: Rotor INspider ALDHU Powermeter Crankset - 24mm | Round
Manufacturer: Rotor
Item Code: ROT631543
activity: Cycling, Triathlon
usage bikesport: Road Bike, Triathlon
crank arm length: 170, 172.5
number of gears - front: 2
shifting system: 11-speed, 12-speed
bottom bracket axle profile: 24mm Hollow Shaft
direct mount standard: ROTOR
Road - bolt circle diameter: 110mm
chainring version: round
number of teeth: 52-36
chainring mount: Direct Mount
chain line: 43.5mm
crank special features: Power Meter
Q-factor: 147,5mm
Model year: 2024
Collection: Full year
Color: Black
weight: 776g
manufacturer item code: 170 mm - S13-298-19010
172.5 mm - S13-298-20010
Weight Source: Manufacturer
Weighed Version: 30mm |170mm | 52T
Manufacturer page: