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Sigeyi AXO Praxis DOON Carbon Road Power Meter Crankset

Niel Ubod May 26, 2024

$670.00$690.00

Sigeyi AXO power meter with Praxis DOON crank arms

Clear selection

Sigeyi AXO Praxis DOON Carbon Road Power Meter Crankset

The Sigeyi AXO Praxis DOON Carbon Road Power Meter Crankset combines the Sigeyi AXO power meter with Praxis DOON carbon crank arms. The Sigeyi AXO power meter measures power from both legs and is accurate to +/- 1.0%. This power meter also features a rechargeable battery with 300 hours of ride time, auto-zero functionality and left and right leg power balance.

Praxis DOON carbon crank arms are the company’s flagship crankset. They are lightweight at only 342 grams (172.5 mm) and use a 30 mm spindle. This makes them compatible with a wide range of bottom brackets. The DOON cranks also have an updated preload collar which ensures reliability and easy adjustment.

 

Key Product Details

Compatibility:

This power meter fits 30 mm bottom brackets and 110 BCD 5-bolt or 110 BCD 4-bolt chainrings based on the version ordered. See Compatibility tab for more information.

Power Measurement:

The Sigeyi AXO power meter measures power at the spider and is therefore able to measure power from both legs.

Key Features:

Dual-leg power measurement, carbon crank arms, accurate to +/- 1.0%, 300 hours of battery life, rechargeable battery, active temperature compensation, left/right power balance, ANT+ and Bluetooth compatibility, auto-zero (automatic calibration). See Specs tab for more information.

Advice From Our Staff:

The Sigeyi AXO Praxis DOON Carbon Road Power Meter Crankset combines the accurate, affordable and lightweight Sigeyi AXO power meter with top-of-the-line Praxis DOON crank arms. These are lightweight carbon crank arms and which use a 30 mm spindle. This is a great power meter crankset for riders who are looking for a lightweight power meter upgrade for their road bike.

 

Options For This Power Meter

BCD: This power meter is available in the following BCDs in order to fit your choice of chainring sizes:

  • 110 5-Bolt | 110 4-Bolt

Crank arms: The Praxis DOON crank arms come in the following sizes:

  • 165 mm | 170 mm | 172.5 mm | 175 mm

 

Professional Assembly (Optional)Sigeyi Build Checklist

We are happy to professionally assemble your power meter crankset if you select this option when ordering. This ensures your crankset is correctly built and saves you time. Professional assembly includes:

  • Mount the power meter to the cranks and tighten to factory specifications
  • Apply multi-purpose bicycle grease where necessary
  • Install chainrings on the power meter (if chainrings are ordered)

Please note – while we tighten everything to factory specs, it is still your responsibility to routinely check your power meter crankset to make sure all bolts and nuts remain securely fastened.

 

Other Versions to Consider

Sigeyi AXO Praxis Zayante: For riders who are looking for a more affordable carbon crankset, we recommend the Sigeyi AXO Praxis Zayante Carbon Road Power Meter Crankset. This crankset features the same Sigeyi AXO power meter, but paired with Praxis Zayante crank arms.

Compatibility

Chainrings: The power meter fits 110 BCD 5-bolt or 110 BCD 4-bolt chainrings based on the version ordered. In many cases, you can use your existing chainrings assuming they use the same configuration as the power meter you order.

Bottom Bracket: This power meter fits 30 mm bottom brackets. If you currently use a crankset with a 30 mm spindle, you should be able to re-use your existing bottom bracket. However, if you are changing spindle sizes, you will need to replace your bottom bracket.

Sigeyi AXO Praxis DOON Crankset Specs

NameSigeyi Praxis DOON Carbon Crankset
Bike TypeRoad
Location of Power MeasurementSpider
Left or Both Legs MeasuredBoth
Independent Left/Right MeasurementYes - Power Balance
InstallationMore involved (60 min. estimated)
Crank Arm MaterialCarbon Fiber
Communication ProtocolANT+ and Bluetooth SMART
Claimed Accuracy+/- 1.0%
Active Temperature CompensationYes
Weight447 grams (172.5 mm)
Battery TypeRechargeable
Battery Life300 hours
Method of Cadence MeasurementAccelerometer
BCD110 5-bolt or 110 4-bolt
Spindle Size30 mm
Q Factor147 mm
Praxis Warranty2 years
Sigeyi Warranty2 years

In the Box

  • Sigeyi AXO power meter
  • Praxis DOON carbon crank arms and spindle
  • Charging cable
  • User's manual
  • Decals: Black, Red, Green, Silver, Blue

Tools Needed for Installation

You will need the following tools for installation of this product. You can purchase many of these commonly used tools in our store.

  • 8 mm Allen key

Common Questions and Answers

Question: I see you sell several different Sigeyi power meter cranksets. What are the differences?

Question: How do I determine what length my current cranks are so I can make sure I get the same size?

  • Your crank arm length should be printed or stamped on the inside of the left crank arm, usually near the pedal end.

End of crank arm showing crank arm length

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