Yamaha YBR 125
10 hp, 125 cc, 287 lbs2005 - 2016
Honda CB650F
86 hp, 649 cc, 459 lbs2016 - 2017
EngineYamaha YBR 125Honda CB650F
Displacement125 cc649 cc
Max power10 hp (@7 800 RPM)86 hp (@11 000 RPM)
Max torque6 lb ft (@6 000 RPM)46 lb ft (@8 000 RPM)
Redline10 000 RPM11 200 RPM
Idling speed1 250 RPM1 200 RPM
ManagementFuel InjectionFuel Injection
LayoutSOHC SingleDOHC Inline-4
Compression10.00:111.40:1
Oil capacity1.14 quart2.74 quart
Oil type10W30, 10W40SAE 10W-30
Spark plug typeNGK CR6HSACR9EH-9
CoolingAirLiquid
Valves216
Bore54.0 mm67.0 mm
Stroke54.0 mm46.0 mm
Throttle bore32.0 mm
Weight to power28.66 lbs/hp5.33 lbs/hp
Power to weight87 hp/2500lbs468 hp/2500lbs
Battery typeYTX7L-BS, 12V 6AhYTZ10S 12V/8.6AH
GearboxYamaha YBR 125Honda CB650F
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain typeO ring #525, 118 links
Gears count56
Primary ratio3.41.69
Final drive3.0712.8
1. gear2.643 (26 mph)3.071 (57 mph)
2. gear1.778 (39 mph)2.235 (78 mph)
3. gear1.316 (53 mph)1.777 (98 mph)
4. gear1.045 (66 mph)1.52 (115 mph)
5. gear0.875 (79 mph)1.333 (131 mph)
6. gear1.214 (143 mph)
ChasisYamaha YBR 125Honda CB650F
Frame typeDiamond steelSteel twin-spar
Front susp.Telescopic fork, 110mm41mm fork, 4.72 in travel
Rear susp.Swingarm, 4.13 in travelMonoshock, 43.0.20 in travel