A mixed fleet has several rim geometries in it. One blanket size guarantees a share of loose covers on day one.

Build a size list once

One diameter-and-thickness pair per vehicle type in the fleet.

Recorded against the account and reused for every reorder.

Then order by quantity per size

Reordering becomes a two-minute job rather than a survey.

New vehicle type joins the fleet? One more measurement pair.

Match the build to the duty

Wash-down fleets: silicone. Customer-facing fleets: sized fabric or microfibre.

Rental: builds rated for repeated refitting, which not all are.

Hold the colour and the mark

So the fiftieth cover matches the first.

Consistency across a fleet is visible from the driver’s seat.

Print the fitting rules

Send them with every delivery so fitters know what to reject.

A cover that moves is a cover that comes off.