XX Small/X Small: 48 - 51cm head circumference

Large/X-Large: 23

SPOKES: Stainless Steel

a fully sealed rear cassette

Offset: 31mm

SD B-85 4 Hole Crankset Colour:Black XX Small/X Small: 48 -The all new SD B 85 Crankset performs as well as it looks. It is very rigid and light for fast out of the gate acceleration, and thanks to the hidden chain ring bolts it has a clean and sleek look. SD B 85 cranksets have a unique way of installing your chainring. There is no need anymore for two piece chainring bolts. The hex bolts (no 5) screw directly into the crank arms for easy installing and changing your chainring. If you're looking for that