Adjustable Classic
1-1/8" Thread less Dual Spring Fork with Disc Brake Mount
Specifications:
Axle Size:3/8in
Hub Spacing: 145mm.
For 26''-29'' x 3.0,4.0 FAT Tire
Material: Alloy/Steel
1-1/8" Stem for the fork
https://www.ebay.com/itm/125380556085
1-1/8" Headset for the fork
https://www.ebay.com/itm/125456548797