DID Chain 520x110 Prostart VX3 YCRF_balance_bikes New Flexible Fin Technology (FFT)

New Flexible Fin Technology (FFT) allows for improved stopping power and more progressive brake control

Designed for maximum versatility for those with an active lifestyle

Stretch inner cuffs with thumbhole

Tread pattern designed for easy rolling and smooth ride

1/4" 7/16" socket

DID Chain 520x110 Prostart VX3 YCRF_balance_bikes New Flexible Fin Technology (FFT)FEATURES Greater rigidity brings smoother handling, reduced power loss, and quicker response Average tensile strength 9,220 ft lbs. Pre stretched at the factory VX Series replaces the Professional O ring V series and the Premium X ring VM Series Clip type master link included Highest value in all D. I. D Series Superior longer life than previous VM Series NOTE: Connecting link not interchangeable between the new VX and the former V and VM.