Cannondale Hollowgram Round (Ai-compatible)

  • Model
  • Color
  • Made from
  • Surface coating
  • Made with
  • Chainring shape
  • Compatible cranksets
  • Weight, grams
  • Chainline, mm
  • Offset, mm
  • Chain compatibility

    Standard - Compatible with 9,10,11-speed chains and 12-speed SRAM Eagle/KMC chains

    12-speed - Compatible with 9-11 speed chains as well as 12-speed chains, including Shimano 12-speed

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  • Special tooth shape guarantees a tighter contact with chain and softer pedaling (in comparison with regular chainrings)

  • Chamfered edges and wide mud gap keeps the ring from getting muddy

  • Increased tooth height improves chain retention while the bike is shivering and jolting

  • Overall bicycle weight reduction in the range of 150-400 grams (with no front derailleur and chainguide)

  • Manufactured using highly durable aluminum alloy

  • Variable teeth thickness prevents chain dropping


  • You get a wide range of chainring sizes to choose from, starting from 26T

  • You can reach an optimal drivetrain chainline value with variable chainline technology (VCLT)

  • You save bike weight by not using crankset spider and you can opt for the chainring with an appropriate specs for your drivetrain


Specifications for Cannondale Hollowgram Round (Ai-compatible)

Model 26T, Offset 4.6mm or 28T, Offset 4.6mm or 30T, Offset 3.6mm or 32T, Offset 2.6mm or 34T, Offset 1.7mm or 36T or 38T, Offset -0.8mm or 40T, Offset -1.4mm or 46T, Offset -6mm
Color Black or Silver or Blue or Gold or Green or Orange or Red or Violet
Made from 7075-T651 Aluminum Alloy
Surface coating Anodizing
Made with CNC milling
Chainring shape Round
Compatible cranksets Cannondale Hollowgram Si/Si 2016, SiSl2
Weight, grams 39 (26T), 45 (28T), 53 (30T), 57 (32T), 62 (34T), 70 (36T), 78 (38T), 84 (40T)
Chainline, mm 49.4 (28T), 50.4 (30T), 51.4 (32T) 52.3 (34T), 53.7 (36T), 52.9 (38T), 52.3 (40T)
Offset, mm 4.6 (26T-28T), 3.6 (30T), 2.6 (32T), 1.7 (34T), 0 (36T), -0.8 (38T), -1.4 (40T), -6 (46T)
Chain compatibility Standard or 12 speed for CN-M9100, CN-M8100, CN-M7100, CN-M6100