Direct Mount for Cannondale Hollowgram -- MTB offset


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Cannondale makes one of the finest cranksets in the bike world.  With this beautifully machined chainring, we aimed to make a direct mount ring that could measure up to the sweetness of these cranksets!


  • This direct mount chainring will replace your existing spider/chainring on Cannondale Hollowgram SI & SISL cranks.
  • Provide a great chainline on most boost bikes.  See this explanation for details.
  • Not compatible with the new "F-Si" rear hub configuration.  These have a cassette that is shifted 6mm outward so the chainline is off by 6mm with our chainring, and the chainring will hit the chainstay.
  • For 1x9, 1x10, 1x11 and 1x12 drivetrains (including SRAM Eagle)
    • Compatible with all 10, 11, and 12 speed chains (Including SRAM Eagle)
    • If using a 9 speed drivetrain use a 10 speed chain (shifts and works well on a 9 speed drivetrain and fits the ring tighter for better chain retention).

Complementing products:


Tech Specs:

  • Design and manufactured in the Minneapolis, MN USA
  • Wolf Tooth’s patent pending Drop-Stop®  wide/narrow tooth profile for the ultimate chain retention and mud shedding ability
    • Recommend the use of a clutch style rear derailleur for the best chain security.
  • Material 7075-T6
  • Color - black
  • Chainline 48mm (same as xx1 spider on Cannodale) on 30t-34t and 50 on 36t
    • 30-34t are offset (dished in 9mm)
    • 36T is offset (dished in) 7 mm offset to provide adequate chainstay clearance
  • If you plan to ride in very muddy conditions, we recommend a chainguide or chainkeeper in addition to a clutch-type rear derailleur! Without these precautions, you may experience chaindrops and/or chainsuck.
    • Weight - 30T= 64g, 32T= 68g, 34T= 72g, 36T= 82g

    Free shipping on all orders over $50 USD!