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SRM Composite Crank Arms

Josh Matthew August 21, 2025

$500.00

Carbon arms for the SRM Origin power meter. Available in sizes from 150 mm to 175 mm

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SRM Composite Crank Arms

The SRM Composite Crank Arms are made from a blend of carbon fiber and aluminum. This makes them a bit heavier than the full carbon SRM crank arms, but lighter than the SRM aluminum arms. They weigh 328 grams (172.5 mm) for the set and are available in sizes ranging from 150 mm to 175 mm. They are compatible with the SRM Origin power meter only. These crank arms are compatible with SRM Origin 30 mm and DUB spindles. This gives you a wide range of bottom brackets that can be used with your bike. They can also be used with the SRM Origin 24 mm spindle when paired with the SRM Origin 24 mm Adapter.

Please note, the SRM Origin Crank Caps and SRM Origin 24 mm Adapter are sold separately.

 

Key Product Details

Compatibility:

This crankset is compatible with 30 mm, DUB and  24 mm SRM Origin spindles. See Compatibility tab for more information.

Key Features:

Blended carbon and aluminum crank arm construction, aluminum pedal inserts. See Specs tab for more information.

Advice From Our Staff:

The SRM Composite Crank Arms are a blend of carbon and aluminum which makes for a more affordable yet still lightweight crankset. Our staff recommends this crankset to riders who are looking to balance price and weight with their SRM power meter.

 

SRM Crank Arm Comparison

ModelPriceBikeCrank ArmsFitsNotes
SRM Aluminum Crank Arms$300Road, Track or MTBAluminumSRM 24 and 30 mm spindlesSpindle not included
SRM Science Track Crank Arms$300TrackAluminumShimano Octalink bottom brackets
SRM Composite Crank Arms$500Road, Track or MTBCarbon compositeSRM 24 and 30 mm spindlesSpindle not included
SRM LOOK Carbon Crank Arms$900Road, Track or MTBCarbonSRM 24 and 30 mm spindlesSpindle not included
SRM CYBREI Carbon Crank Arms$900Road, Track or MTBCarbonFits DUB bottom bracketsSpindle included

 

Other Versions to Consider

SRM LOOK Carbon Crank Arms: The SRM LOOK Carbon Crank Arms are made from a full carbon construction and are SRM’s lightest, stiffest crank arms. This is a great option for riders looking for a premium crankset with maximum weight savings.

Compatibility

  • The crank arms are compatible with the SRM Origin Road, MTB and Track power meters only
  • Fits 30 mm, DUB and 24 mm SRM Origin spindles.

Please note, the SRM Origin 24 mm Adapter is required when using an Origin 24 mm spindle. This adapter is sold separately.

Specs

  • Interface: SRM Direct Mount
  • Crank Arm Material: Carbon fiber and aluminum
  • Weight: 328 grams (172.5 mm)

Tools Needed for Installation

You will need the following tools for installation of this product. You can shop for the required tools on our Tools Page.

  • 10 mm Allen key
  • 3 mm Allen key
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