Chainring size (in # of teeth)



38 teeth

40 teeth

42 teeth

44 teeth

46 teeth

48 teeth

50 teeth

52 teeth

54 teeth

Chainring ratio



53/39 Round

52/36 Round

50/34 Round

46/30 Round

48/32 Round

size chainring inner



non

35-teeth

37-teeth

34-teeth

36-teeth

38-teeth

39-teeth

42-teeth

44-teeth

size outer chainring



non

46-teeth

48-teeth

50-teeth

52-teeth

53-teeth

54-teeth

55-teeth

56-teeth

58-teeth

50-teeth aero

52-teeth aero

53-teeth aero

54-teeth aero

55-teeth aero

58-teeth aero

56-teeth aero