Yamaha MT-125
15 hp, 124 cc, 309 lbs2019 - 2022
Honda Grom
9 hp, 125 cc, 225 lbs2013 - 2018
EngineYamaha MT-125Honda Grom
Displacement124 cc125 cc
Max power15 hp (@9 000 RPM)9 hp (@6 750 RPM)
Max torque8 lb ft (@8 000 RPM)7 lb ft (@5 350 RPM)
Redline10 000 RPM9 300 RPM
Idling speed1 200 RPM1 400 RPM
ManagementFuel InjectionFuel Injection
LayoutSOHC SingleSOHC Single
Compression11.20:19.30:1
Oil capacity1.14 quart
Oil type10W30
Spark plug typeNGK CPR6EA-9
CoolingLiquidAir
Valves42
Bore52.0 mm52.0 mm
Stroke58.6 mm58.0 mm
Throttle bore24.0 mm
Weight to power20.58 lbs/hp24.99 lbs/hp
Power to weight121 hp/2500lbs100 hp/2500lbs
Battery type12V 5.5Ah12V 3.5Ah, YTZ5S
GearboxYamaha MT-125Honda Grom
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain type420 106 links
Gears count64
Primary ratio3.0423.35
Final drive3.422.267
1. gear2.833 (24 mph)2.5 (28 mph)
2. gear1.875 (37 mph)1.55 (45 mph)
3. gear1.364 (51 mph)1.15 (61 mph)
4. gear1.143 (60 mph)0.923 (76 mph)
5. gear0.957 (72 mph)
6. gear0.84 (82 mph)
ChasisYamaha MT-125Honda Grom
Frame typeSteel deltaboxBack bone type
Front susp.KYB 41mm USD, 5.12 in travel31mm USD, 3.94 in travel
Rear susp.Swingarm monoshock, 4.49 in travelMonoshock, 4.09 in travel