Bicycles, E-Bikes & Micromobility worked example

Frame Paint Scrap at 1.73% target maximum paint scrap rate: a worked example

What does the result look like when target maximum paint scrap rate reaches 1.73%? The full calculation is worked below with real intermediate numbers. a bicycle or micromobility paint line needs to measure paint scrap for a color, model, shift, supplier, or coating process

The inputs for this scenario

  • Frames scrapped for paint defects: 18 parts (unchanged)
  • Painted frames inspected: 720 parts (unchanged)
  • Target maximum paint scrap rate: 1.73 % (raised for this scenario; the documented default is 1.5)

Working through the calculation

  • Applying the documented formula (Paint scrap rate = scrapped painted parts ÷ inspected painted parts × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 2.5 % paint scrap for paint scrap rate, the number this scenario is built around.
  • At this operating point the engine returns -0.77 points for paint scrap gap to target.
  • At this operating point the engine returns 18 parts for scrapped painted parts.
  • At this operating point the engine returns 720 parts for inspected painted parts.

How this compares with the baseline

  • Against the tool's baseline example, where target maximum paint scrap rate sits at 1.5% and the headline result is 2.5 % paint scrap, this scenario lands almost exactly on the baseline at 2.5 % paint scrap.
  • A figure at this level is achievable when target maximum paint scrap rate is genuinely sustained, not just peaked for a shift. It is a single-period ratio with no defect-type breakdown, so it tells you how much you are scrapping but not which defect or root cause is driving it.

Results at a glance

  • Paint scrap rate: 2.5 % paint scrap (headline result)
  • Paint scrap gap to target: -0.77 points
  • Scrapped painted parts: 18 parts
  • Inspected painted parts: 720 parts

Run it with your numbers

  • Every input above is editable in the live Frame Paint Scrap calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.