2021 Honda Grom — Should You Buy One?
Typical asking price: $2,800–$4,200. This is one of the more reliable vehicles in its class — here's what to watch for anyway.
Kestrel Take
The tiny 125cc hooligan bike that everyone loves and everyone modifies. exceptionally durable mechanically, cheap to run, and endlessly customizable. The whole inspection is about crash damage and the quality of the inevitable modifications.
What we checked
Checked against public records, 2026-09-25
We checked NHTSA for this exact year and model and it returned nothing. That is a fact about the database, not a clean bill of health — it usually means few of these were sold or few owners filed. What follows is our own write-up, unreconciled.
Known Issues for the 2021 Honda Grom
Ranked by wallet impact. These are documented, recurring problems — not freak accidents. How we decide that.
Groms get wheelied, stunted, and dropped constantly. Inspect for bent forks, cracked cases, and frame damage from hard use.
Repair cost: Not yet priced
Source: not yet checked against public records.
Most have exhaust, tune, and cosmetic mods. Check that engine modifications were done sensibly.
Repair cost: Not yet priced
Source: not yet checked against public records.
Small chains wear quickly if neglected.
Repair cost (estimate): $100-$300
Source: not yet checked against public records.
Small, light, and easily stolen; verify the VIN and title carefully.
Repair cost: Not yet priced
Source: not yet checked against public records.
Walk-Away Red Flags
- ✗Bent forks or frame damage from stunting
- ✗Sketchy engine modifications
- ✗A title or VIN that does not check out
- ✗A price too good to be true
Good Signs
- ✓Clean, un-stunted example
- ✓Sensible modifications with documentation
- ✓Verified clean title
- ✓Low miles
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Found a specific Honda Grom?
This page covers what goes wrong on the 2021 Honda Grom in general. A free read looks at the one you're considering— it checks that seller's asking price against the market and names the issues that matter most for this exact year.
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Known issues on this page are based on documented owner reports, NHTSA complaints, class-action records, and manufacturer technical service bulletins. Individual vehicles vary. A pre-purchase inspection by a trusted mechanic is always worth doing.
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