Cannondale Hollowgram Oval (Ai-compatible) front and side UK cyclorise
Cannondale Hollowgram Oval (Ai-compatible) front and side UK
Cannondale Hollowgram Oval (Ai-compatible) slant UK
Cannondale Hollowgram Oval (Ai-compatible) weight UK

Garbaruk Cannondale Hollowgram Oval (Ai-compatible) | RRP FROM £59.99

Regular price $93.00

Compatible with all 9,10,11-speed chains, 12-speed SRAM Eagle, KMC, Shimano HG+ chains



  • Special tooth shape guarantees a tighter contact with chain and softer pedalling (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 aluminium 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


  • Even at-the-wheel distribution of pedalling torque

  • Improved responsiveness and pedalling smoothness, narrower dead spots and increased span of your gluteus and hamstrings

  • Easier uphill riding, especially on soft and slippery terrains

  • Increased pedalling efficiency


Model 26T, Offset 4.4mm or 28T, Offset 3.7mm or 30T, Offset 2.9mm or 32T, Offset 1.7mm or 34T or 36T, Offset -0.8mm or 38T, Offset -2.2mm
Made from 7075-T651 Aluminium Alloy
Surface coating Anodizing
Made with CNC milling
Ovality 12%
Timing 108° after TDC (top dead centre)
Chainring shape Oval
Compatible cranksets Cannondale Hollowgram Si/Si 2016, SiSl2
Weight, grams 40 (26T), 46 (28T), 53 (30T), 58 (32T), 63 (34T), 69 (36T), 78 (38T)
Chainline, mm 52.1 (26T), 52.8 (28T), 53.6 (30T), 54.8 (32T), 56 (34T), 57 (36T), 58.2 (38T)
Offset, mm 4.4 (26T), 3.7 (28T), 2.9 (30T), 1.7 (32T), 0 (34T), -0.8 (36T), -2.2 (38T)
Chain compatibility Compatible with all 9,10,11-speed chains, 12-speed SRAM Eagle, KMC, Shimano HG+ chains.
Colour Black or Silver or Blue or Gold or Green or Orange or Red or Violet