It is fact, not a hyped sales pitch. Crownring's dual radii work in your favor far more than the single radius chainring. There are other dual radii chainrings, but they strive to reduce the stroke to a single ratio. Only Crownring uses the dual radii to peak performance through fully utilizing the rider's power curve by optimally changing ratio during the downstroke.


Crownring lowers the demand where force is limited; the top of the stroke. Its second radius maximizes the greater power of the lower stroke. Crownring provides two ratios that work with you to best power through the resistances.

• More torque for uphill climb
• Higher radius for added speed
• Increases kinetic energy to subsequent strokes
  

Crownring is the only bicycle chainring that gives you maximum torque and greatest speed within the same stroke, all seamlessly without rider intervention or awareness.

• Lowers ratio to coincide with leverage decline.
• Reduces dead zone duration
• Maintains a usable ratio to the end of the stroke
  

The proof of Crownring's superiority is evident in its 40T version that matches speed and cadence with a 48T chainring. Crownring is smoother, and easier than any other unassisted bicycle drive.

• Smoother
• Easier
• faster
• Unassisted
  

Crownring can improve any bicycle that uses a direct drive crankset.

• Provides better performance for electric bikes
  
• Prolongs battery life for greater distance
• Fewer charge cycles increases battery lifespan
  

Crownring is faster, easier, with more natural comfort than any other available bicycle drive. It's not hard to prove. Riding is believing.


Please visit the Environment link on the left to learn how Crownring can become a benefit to climate change.