Yamaha YBR 125
10 hp, 125 cc, 287 lbs2005 - 2016
Kawasaki ZX-10R
207 hp, 998 cc, 454 lbs2016
EngineYamaha YBR 125Kawasaki ZX-10R
Displacement125 cc998 cc
Max power10 hp (@7 800 RPM)207 hp (@13 000 RPM)
Max torque6 lb ft (@6 000 RPM)84 lb ft (@11 500 RPM)
Redline10 000 RPM13 500 RPM
Idling speed1 250 RPM1 200 RPM
ManagementFuel InjectionFuel Injection
LayoutSOHC SingleDOHC Inline-4
Compression10.00:113.00:1
Oil capacity1.14 quart
Oil type10W30, 10W40
Spark plug typeNGK CR6HSA
CoolingAirLiquid
Valves216
Bore54.0 mm76.0 mm
Stroke54.0 mm55.0 mm
Throttle bore47.0 mm
Weight to power28.66 lbs/hp2.19 lbs/hp
Power to weight87 hp/2500lbs1139 hp/2500lbs
Battery typeYTX7L-BS, 12V 6Ah
GearboxYamaha YBR 125Kawasaki ZX-10R
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain type
Gears count56
Primary ratio3.4
Final drive3.071
1. gear2.643 (26 mph)
2. gear1.778 (39 mph)
3. gear1.316 (53 mph)
4. gear1.045 (66 mph)
5. gear0.875 (79 mph)
ChasisYamaha YBR 125Kawasaki ZX-10R
Frame typeDiamond steelAluminum perimeter
Front susp.Telescopic fork, 110mm43mm USD, 4.69 in travel
Rear susp.Swingarm, 4.13 in travelMonoshock, 4.49 in travel