DONSP1986 Bike 4.0" Fat Suspension 20“ Fork Single Shoulder Disc Brake Bicycle/Tricycle

DONSP1986 20" fork Bike Snow Fork Fat Bicycle Fork Mechanical Forks Locking Suspension Forks Aluminum Alloy Fit 4.0" Tire Spread 135MM, shoulder manual control + wire remote control two locking mode. Travel:135mm Spread 135mm. Spring to adjust the fork’s softness and hardness. 1-1/8"(28.6mm) steer tube, 295mm length. Inner tube 1" (25.4mm) Disc brake bracket( center hole to center hole: 75mm) ; compatible with 20"*4.0 inch tire max FIT 1 1/8" Headset and works well with the fork，1 1/8" headset：For 44mm Head Tube and 28.6mm Fork PLEASE NOTE1: the best safe speed if racing: 35km/h