Start with the complete system
Rear sleeves are simple-looking components with a large influence on the character of a drift trike.
What changes the result
Material, thickness, surface condition, and fit affect how readily the rear wheels lose traction. Smooth concrete, rough asphalt, and painted surfaces can produce very different wear and grip.
The decision standard
Inspect sleeves for uneven wear, deep cuts, distortion, and movement around the tyre. Replacing them before failure is not only maintenance; it helps keep the handling response predictable from one session to the next.