​​​​21mm Socket 

13.5-14mm Axle 

Product Features
Thread: M14 x 1.5 Thread

This is the most common used nut and washer setup on 1000w motors

Includes: 1 Flat Washer + 1 Locate Washer

Material: Hardened Steel

Suits: Electric Scooters & High Performance Model

Many performance scooters also use M12 sizes, but some may use M14 instead — so check:

Most Dragon 1000w + Scooters

Most Kaabo 11 inch tyre models

Kaabo Wolf warrior 10 inch tyre uses M12x1.25 Bolts

Zero / Dualtron / Speedway / Fluidfare

Zero 10X

Dualtron Thunder / Mini

Speedway 5 / 4 Pro

Fluidfare Apollo (performance trims)