2025 Honda Grom makes transmission noise while riding for a while (30 min.) on 5th gear that goes away when you downshift back to 2nd, factory defect that Honda is aware of (according to Grom forums). Some claim that this is "caused by the second gear rubbing against the countershaft and overheating". Honda dealership quoted $1200-$2000 for transmission repairs.
The worst 2025 Honda GROM125 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Transmission2
Problems by type
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- Transmission2
Recalls
No recalls on record for this model year.
Technical service bulletins for the 2025 Honda GROM125 8
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
What 2025 Honda GROM125 owners say
Most recent owner complaints, unedited.
Transmission makes whining / whirring noise as if a bearing is locking up...
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Questions about the 2025 Honda GROM125
Is the 2025 Honda GROM125 reliable?
Owners have filed 2 complaints about the 2025 Honda GROM125, close to a typical GROM125 model year.
What is the most common problem with the 2025 Honda GROM125?
Transmission and drivetrain, with 2 complaints.
How many recalls does the 2025 Honda GROM125 have?
No recalls on record.
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