DONSP1986 4.0" Fat Tire Bike Fork works well with the 20"Fat Tire Bicycle/ Tricycle/ E-bike

Reference

1, 20" Bike Suspension Fat 4.0" tire Fork(Single Shoudle)

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

Single Shoulder

20" Bike Suspension Fat 4.0" tire Fork

Rebound Adjust, Manual Lockout
Outside Diameter of Up Tube: 32mm/1.26inch and 42mm/1.693 inch for lower leg
Disc brake bracket( center hole to center hole: 75mm) ;compatible with 20"*4 inch tire max
Spring to adjust the fork's softness and hardness
PLEASE NOTE1: the best safe speed if racing: 35km/h；

2, 20" Bike Suspension Fat 4.0" tire Fork(Double Shoudle)

20" Bicycle fork 4.0" Fat Tire, Bike Snow Fork Fat Air Suspension Bicycle Fork. Straight Tube QR 9mm * 135mm | 1-1/8inch Steerer, Fit for 20inch*4.0 Tire;
Travel: 170mm, Spread: 135mm, 9mm quick release. 1-1/8"(28.6mm) steer tube, 260mm length. Inner tube 1" (25.4mm)
11/8" Headset works well with the fork
Disc brake bracket( center hole to center hole: 75mm);compatible with 20"*4 inch tire max; Outside Diameter of Up Tube: 32mm/1.26inch and 43mm/1.693 inch for lower leg

Double Shoulder

Manual Lockout, Air suspension damping.
Outside Diameter of Up Tube: 32mm/1.26inch and 42mm/1.693 inch for lower leg
Disc brake bracket( center hole to center hole: 75mm) ;compatible with 20"*4 inch tire max
Travel: 170mm Spread: 135mm
PLEASE NOTE1: the best safe speed if racing: 35km/h；