The CinQo Saturn - the second generation is here. Five
arms, each precisely instrumented in a (patent pending) arrangement and
now connected by the "Ring of Saturn". Add in the ANT+ Wireless
Communication with the convenience of a user replaceable CR2450 battery
and you've got Quarq Power!
Measures Power at the Crankset
The Quarq CinQo is a bicycle powermeter that is integrated into the
crankset of the bicycle. Specifically, the CinQo is a instrumented
crank "spider" that mounts on specific production cranksets.
ANT+ Wireless Communication
The ANT+ radio transmits the CinQo's power measurement digitally to
other ANT+ compatible bicycle computers. (Think of ANT+ as "Bluetooth"
for bicycles.) ANT+ computers include the Garmin Edge 705 and the iBike
iAero. The ANT standard is available to all bike computer
manufactures, so look for more ANT+ compatible bike computers in the
The CinQo System
The CinQo is only a power sensor, so to outfit your bike with a complete power measurement system, you need the following items:
CinQo Power Sensor - One of the three models from above – for SRAM, FSA or Rotor.
Compatible Crankset - One of the crankset models
listed above. You can either buy cranks directly from us, or if you
already own them (or purchase them elsewhere), you can send them in to
us to have the CinQo installed.
ANT+ Computer - Either the Garmin Edge 705 or the iBike iAero.
The CinQo is designed for attachment to the following production cranksets with separate spider assemblies.
Bontrager Race X Lite
Truvativ Rouleur Carbon
Quarq compatible FSA SL-K (available only from Quarq)
FSA Team Issue (with removable spider)
Pinarello MOST (with a removable spider)
The CinQo will only fit the SRAM or FSA cranksets that are listed
above and does not attach to any Shimano or Campagnolo cranks. Cranks
that have an integrated spider and crank arm such as Shimano or
Campagnolo are not compatible because the CinQo replaces the spider.
Strain Gage Technology
The CinQo powermeter measures power by measuring the torque (pedal
force) and the angular velocity (cadence). When you press on the
pedals, all parts of the bikes drivetrain displace (flex) slightly under
the load. The CinQo spider is carefully designed using Finite Element
Analysis to displace in a very controlled manner in specific locations
in response to applied load. Strain gages are used to measure the
displacement and thus calculate the applied torque.
Strain gage technology has been around for many years and is used in
other very popular bicycle powermeters including PowerTap and SRM
products. Although the basic measurement principles date back over 50
years, modern solid state electronics have improved greatly allowing
high accuracy and low power consumption for optimal battery life.
The CinQo uses 20 strain grids on 10 gages in Quarq proprietary arrangement (Patent Pending).