· Double row sprocket (40B/50B series) · Single row sprocket (08B series) · A-shaped synchronous wheel · B-shaped synchronous wheel · Spiral tooth · Umbrella tooth · Bevel gear · Spur gear 1.5 die A-shape (pressure angle 20 °) · Spur gear 2 die A shape (pressure angle 20 °) · Spur gear 1.5 die K/B shape (pressure angle 20 °) · Spur gear 2 die B (pressure angle 20 °)