The chart below can be used to estimate the proper crank size.
Your choice of cranks may vary depending on rider style and skill level.

CRANK SIZING

RIDER INSEAM

CRANK LENGTH

20"

140mm

21"

145mm

22"

150mm

23"

155mm

24"

160mm

25"

162mm

26"

166mm

27"

171mm

28"

175mm

29"

177mm

30"

180mm

31"

182mm

32"

185mm

34"

190mm