Road Bike, Cycling Forums banner

3df

  1. General Cycling Discussion
    ROTOR will add and new mid-range variant to the 3D crank family at Sea Otter; the new 3DF crank. The 3DF offers some of the technological features of the 3D+ at a price point closer to the 3D cranks. It's 30mm UBB (universal bottom bracket) axle makes it lighter than the 3D crank and compatible...
Top