THM CARBONES Crank Clavicula SE Road Powermeter LK 130 double
With a weight of only 329 grams, THM Carbones brings with the Clavicula SE power meter by far the lightest power measurement crank on the market. The basis is the proven, ultra-light Clavicula SE crank arms with an integrated carbon shaft. In the connection between crank arms and crankshaft, THM-Carbones is the only manufacturer that successfully uses a carbon-carbon connection. Due to an identical fiber structure of the external toothing of the shaft and the internal toothing of the crank arm, the relative movements between the teeth could be minimized. The result is that there is practically no wear and no possibility of noise at this point. The spider for the chainring holder is also laminated from carbon to the crank arm. This leads to extreme lateral stiffness, for optimal shifting behavior and outstanding stiffness in the circumferential direction, for lossless power transmission.
By integrating strain gauges and a small electronic unit in the crankshaft, the additional weight of the power meter unit is only 27 grams. By measuring the power of the left leg, the total power is calculated, similar to other established one-sided power measurement systems. Since in practice the performance deviations between the legs are negligible in all relevant performance areas (apart from exceptional anatomical peculiarities), one-sided performance measurement systems are ideally suited for training control. In addition to the power measurement, the power meter can measure the cadence, torque effectiveness and pedal smoothness (left side). The values can be transmitted via ANT + or Bluetooth LE to all devices compatible with these transmission protocols. Firmware updates and settings can be made via the ZWATT smartphone app. The system is powered by a rechargeable lithium-ion battery. To be prepared for all weather conditions, the power meter is waterproof according to the IP67 standard.
intended use : road bike, triathlon, gravel
Material crank arms: carbon
Material spider: carbon
Crankshaft material: carbon
Crankshaft diameter: 30 mm
Crank lengths: 170 mm / 172.5 mm / 175 mm
bolt circle diameter diameter: 130 mm
Chainring gradation: -
Chainring bolts: -
chain line : 43.5 mm
Q factor: 148 mm
Inner width: 118 mm max.
Compatibility bottom bracket: BB30, Pressfit30, BBRight (optional, not included)
Driver weight: max. 120 kg
Power measurement system: Sensitivus module in crankshaft (measures left leg)
Measurement data: power, cadence, torque effectiveness, pedal smoothness (left side)
Measurement accuracy: +/- 2%
Reading range: 0 - 1999W
Battery: integrated, rechargeable Li-ion battery
Battery life: approx. 150 hours
Transmission standard: ANT +, Bluetooth LE
Firmware updates: via Team ZWATT Power Meter app
Water resistance: yes (IP67)
Finish: 3K carbon matt or glossy
Weight according to the manufacturer: 329g (without bottom bracket / chainrings)
Weight weighed: N / A
Scope of delivery: 1x crank including power meter without bottom bracket / chainrings!