Honda GROM125/A 2020 Manual page 52

Maintenance Fundamentals
NOTICE
Use of a new chain with worn sprockets will cause
rapid chain wear.
#
Cleaning and Lubricating
After inspecting the slack, clean the chain and
sprockets while rotating the rear wheel. Use a
dry cloth with high flash-point solvent. Use a
soft brush if the chain is dirty.
After cleaning, wipe dry and lubricate with the
recommended lubricant.
Recommended lubricant:
Pro Honda HP Chain Lube or equivalent
50
Never use gasoline or low flash point solvents
for cleaning the drive chain.
A fire or explosion could result.
Avoid getting lubricant on the brakes or tires.
Avoid applying excess chain lubricant to prevent
spray onto your clothes and the motorcycle.