Proper Bike Co Avantguard 25T Sprocket
We wanted to make a high quality, low fuss, low price point sprocket. Based on the Vanguard but with no guard (Avant Guard….geddit?). CNC 7075 alloy. Sizes: 25t only.
Comes with a 23.8mm bore (for Odyssey Thunderbolts or Fit Indent) and adapters to fit 22mm (Fly or Animal) or 19mm (Profile) cranks.