Yamaha YBR 125
10 hp, 125 cc, 287 lbs2005 - 2016
Kawasaki Z1000
136 hp, 1043 cc, 481 lbs2010 - 2013
EngineYamaha YBR 125Kawasaki Z1000
Displacement125 cc1043 cc
Max power10 hp (@7 800 RPM)136 hp (@9 600 RPM)
Max torque6 lb ft (@6 000 RPM)80 lb ft (@7 800 RPM)
Redline10 000 RPM11 000 RPM
Idling speed1 250 RPM1 100 RPM
ManagementFuel InjectionFuel Injection
LayoutSOHC SingleDOHC Inline-4
Compression10.00:111.80:1
Oil capacity1.14 quart3.79 quart
Oil type10W30, 10W4010W40
Spark plug typeNGK CR6HSANGK CR9EIA-9
CoolingAirLiquid
Valves216
Bore54.0 mm77.0 mm
Stroke54.0 mm56.0 mm
Throttle bore38.0 mm
Weight to power28.66 lbs/hp3.53 lbs/hp
Power to weight87 hp/2500lbs707 hp/2500lbs
Battery typeYTX7L-BS, 12V 6Ah12V 8Ah
GearboxYamaha YBR 125Kawasaki Z1000
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain type
Gears count56
Primary ratio3.41.627
Final drive3.0712.8
1. gear2.643 (26 mph)2.6 (68 mph)
2. gear1.778 (39 mph)1.95 (90 mph)
3. gear1.316 (53 mph)1.6 (110 mph)
4. gear1.045 (66 mph)1.389 (127 mph)
5. gear0.875 (79 mph)1.238 (142 mph)
6. gear1.136 (155 mph)
ChasisYamaha YBR 125Kawasaki Z1000
Frame typeDiamond steelAluminium beam twin spar
Front susp.Telescopic fork, 110mm41mm USD, 4.72 in travel
Rear susp.Swingarm, 4.13 in travelMonoshock, 5.91 in travel