Crank arm length: 170

Lockring interface: 8 notches

S: 21-28mm internal rim width

This is the youth model so it's perfect for grom sized heads

spare hanger and cable etc

POC Joint VPD Air Knee Pads - L - Basalt Blue PLP|Largest Cog Crank arm length: 170Lightweight and flexible padding that is barely noticeable ideal for riders who want complete freedom of movement and reliable protection. The VPD Air padding is both highly flexible and highly ventilated for optimal freedom of movement, comfort and temperature control. The pad is housed in reinforced stretch fabric that stays securely in place thanks to an inner lining of anti slip neoprene and an elastic strap with velcro fastening. A low profile