The SRM is the performance measurement system on swear most cyclists. From track cycling to mountain biking, the SRM numerous athletes has provided valuable services on their way to the top.
An optimal training requires precise control. You can create an accurate performance profile over the combination of all measurable values such as speed, cadence, heart rate and power. This profile is the basis for a very specific training, strengths and weaknesses are most exactly shown and can be improved or expanded. Use the information gathered can be driven selectively in the optimum power range even during a race in which no slump is feared before the end of the race. So you can with the correct pacing, using the power meter, realize the best possible results for your performance level.
Eight strain gauges measure the introduced torque which is charged together with the instantaneous angular velocity to the entered power. The measurement is made without loss with an accuracy of +/- 1%. The measured values are transmitted via ANT + protocol and are all also ANT + devices dominant recyclable. Thus, Garmin Edge devices can be used with the SRM power meter crank.
Its sturdy Shimano XT crank arms of the power meter is also suitable for tougher gaits in intended use as Enduro or Dowhnhill. The stable and rigid drive 24 mm steel shaft and a rigid, weight-saving Hollowtech II crank design distinguishes the crank assembly. The Race Face Chainrings with Narrow-Wide tooth profile keep the chain without chain guide reliably in place. They are available with 30 to 36 teeth.
Material crank arms: aluminum
Material shaft: steel
Material SRM Spider: aluminum
Battery life PowerMeter: 700 hours
Accuracy Power Meter: +/- 1%
Data Transmission: Wireless
Standard: ANT +
bolt circle diameter: 104 mm
Chainring: 30, 32, 34 or 36 teeth
Length crank arms: 165, 170 or 175 mm
Q: 172 mm
Bottom bracket standard: 68/73 mm BSA, 89.5 / 92 mm Press-Fit
Weight: from 679g (without bottom bracket)
SRM Wireless PowerMeter 8
Shimano XT crankset
Matching inner bearings are separately available in the shop!
Note the instructions for Battery Recycling