absoluteBLACK Oval Premium Double For Cannondale Road Spidering

absoluteBLACK premium 2X Cannondale Hollowgram compatible direct mount Oval chainrings are designed for Hollowgram crank family like SI, SISL, SISL2. Incredibly stiff and light. Super fast shifting thanks to our patented shifting ramp design. Sold as set only.

Chainrings use proprietary bcd mounting system, therefore they are sold as sets of 50/34 or 52/36T combination only.

Size (Mass +/-1g): 50/34T (178g), 52/36T 

Ovality: Optimized to each size separately. 34T- 6.5% ; 36T- 11.4%, 50/52T - 10-11.2% ; Timing of 108 -110.5° after TDC (top dead center) - Ideal for road climbing. Patent Pending

Advantages of Absolute Black Road Oval chainrings:

• One of a kind special oval shape that helps you climb easier and faster (Patent Pending)
  
• Over 15% stiffer than Rotor Qrings due to thicker, 5mm construction
  
• Bespoke Absolute Black 6 point ramp and recess shifting design shifts better than any other brand and model of oval chainring
  
• Finest design that provides excellent strength to weight ratio
  
• You will not "feel" the oval shape while pedalling
  
• Your pedalling action will feel smoother
  
• Helps reduce stress on knees and helping your legs remain fresher for longer
  
• You will be able to maintain better cadence while climbing
  
• Reduces possibility of leg cramps
  
• You will reduce chainring/cog shifts by at least 15%