Yamaha MT-03
41 hp, 321 cc2016 - 2018
Honda CBR250RR
45 hp, 249 cc, 346 lbs1990 - 1993
EngineYamaha MT-03Honda CBR250RR
Displacement321 cc249 cc
Max power41 hp (@10 750 RPM)45 hp (@15 000 RPM)
Max torque22 lb ft (@9 000 RPM)15 lb ft (@12 000 RPM)
Redline12 500 RPM19 000 RPM
Idling speed1 200 RPM1 200 RPM
ManagementFuel InjectionCarburetor
LayoutDOHC Inline-2DOHC Inline-4
Compression11.20:111.50:1
Oil capacity2.27 quart2.56 quart
Oil type10W40, Yamalube 10W40, Shell Rotella 10W40SAE10W–40, SAE20W–50
Spark plug typeNGK CR8ENGK CR9EH–9, NGK CR9EHVX–9
CoolingLiquidLiquid
Valves816
Bore68.0 mm48.5 mm
Stroke44.1 mm33.8 mm
Weight to power7.69 lbs/hp
Power to weight325 hp/2500lbs
Battery typeGTZ8V12V 8Ah, YTLBX7
GearboxYamaha MT-03Honda CBR250RR
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain typeDID428VS1, RK428SMO
Gears count66
Primary ratio3.0432.966
Final drive3.0713.058
1. gear2.5 (39 mph)2.733 (54 mph)
2. gear1.824 (54 mph)2.0 (73 mph)
3. gear1.348 (73 mph)1.59 (93 mph)
4. gear1.087 (91 mph)1.333 (111 mph)
5. gear0.92 (107 mph)1.153 (127 mph)
6. gear0.8 (123 mph)1.035 (142 mph)
ChasisYamaha MT-03Honda CBR250RR
Frame typeDiamondBackbone steel
Front susp.41mm Telescopic fork, 5.12 in travel37mm forks
Rear susp.Swingarm, 4.92 in travelMonoshock