7iDP Transition Youth Knee Guards Black LXL Pair CheckoutTitle=Avid BB7S Road Cable Disc Brake Black Anodized Tubeless ready with tubeless tape

Tubeless ready with tubeless tape included Rear Axle 12mm Thru x 148mm Rim Width (Internal) 30mm Cassette Body Type Shimano Micro Spline Valve Presta Color Black Wheel Size 27

Press-on for both Presta and Schrader valves

They have a shifter mounting boss that fits Shimano bar end shifters and most Shimano downtube shifters

Durable rubber coating on steel links protects the bike frame

7iDP Transition Youth Knee Guards Black LXL Pair CheckoutTitle=Avid BB7S Road Cable Disc Brake Black Anodized Tubeless ready with tubeless tapeLightweight knee protection with moulding foam SM: 10. 5'' 12. 5'' (27 32cm), LXL: 12. 5'' 14'' (32 36cm) Take measurement 6'' above knee cap when leg is bent at 90 degrees TECH SPECS Color Black Size LXL Size Category Youth Size LXL