G-Form Youth Pro-X4 Knee Guards - Black Small/Medium CheckoutSpec= 210x60 Trek Built for the cold

Built for the cold

Steel inner ring Color Gray Rings 50/34 Number of Chainrings Double Crank Length (mm) 170 Crank Intended Use Road Drivetrain Speeds 9 BB Included No Pedal Spindle 9/16" Spindle Interface Type Shimano Hollowtech II Chainring BCD 110 Shimano Asymmetric Chainline/Hub Compatibility 135/142 Road Disc Hubs > 415 mm Chainstay Defined Color Gray Size 170Mm

Wrap-around seat design with integrated roll bar creates a cocoon of protection and complies with stringent German and Japanese safety standards

Spring curve of the shock improves performance for less progressive bikes that require more end-stroke support

Designed and developed to offer the ultimate combination of lightness

G-Form Youth Pro-X4 Knee Guards - Black Small/Medium CheckoutSpec= 210x60 Trek Built for the coldThe G Form Pro X4 Knee Guards are designed to provide athletes with superior protection and comfort. These knee guards feature SmartFlex technology which remains flexible during movement but hardens on impact to absorb energy and protect against injuries. The breathable fabric ensures optimal ventilation while the ergonomic design offers a secure and comfortable fit. Additionally the guards are machine washable for easy maintenance. SmartFlex