Free printable · Measure parts
Old part vs new part comparison sheet
The five minutes that stop a return. Check the new part against the old one before you fit anything, while it is still returnable.
Layout preview of page one. The PDF itself is typeset text, not an image.
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3 pages. No account, no sign-up, no newsletter. Print it, copy it, hand it to somebody else.
Version v1.0 · September 2026. Opens in your browser's PDF viewer, where you can print directly.
The problem it solves
The moment a part is fitted it usually stops being returnable, and the moment it is fitted is also when most people first compare it properly against the old one. Doing that comparison on the bench, in writing, takes five minutes and is the difference between a refund and a shelf full of wrong parts.
Who it is for
- Anyone who has just taken delivery of a part
- People buying used parts where the seller's description was thin
- Anyone who has already been sent the wrong thing once
What is on it
- A side-by-side dimension comparison table
- Fastener, connector and rotation checks
- A decision block: fit it, return it, or ask the seller first
- A record of the order in case you do have to claim
How to use it
- 01Do this before you fit anything, with both parts on the bench.
- 02Compare like with like: an old part is worn, so small differences in wearing surfaces are expected and differences in mounting features are not.
- 03If anything in the mounting or connector rows differs, stop and ask the seller before fitting.
Use it with the registry
Other sheets you may want
- Before you order a scooter part: checklistTwelve checks that take ten minutes and prevent the single most common expensive mistake these machines produce.
- Mystery part measurement sheetYou are holding a part. Nobody knows what it is called. This sheet records everything a supplier needs in order to find it for you.
- Scooter brake pad measurement and tracing cardChinese scooter pads are sold by shape, not by model. Trace yours, measure four dimensions, and compare against the listing photograph before you buy.
Free to print, copy, and share — including in forums, clubs and workshops. If you find a mistake on one of these sheets, tell us and it gets corrected. Every sheet carries a version so you can tell which one you have. All printables.