Yamaha YBR 125
10 hp, 125 cc, 130 kg2005 - 2016
BMW S1000RR
193 hp, 999 cc, 204 kg2009 - 2013
MetricUS
EngineYamaha YBR 125BMW S1000RR
Displacement125 cc999 cc
Max power10 hp (@7 800 RPM)193 hp (@13 000 RPM)
Max torque9 Nm (@6 000 RPM)112 Nm (@9 750 RPM)
Redline10 000 RPM14 200 RPM
Idling speed1 250 RPM1 200 RPM
ManagementFuel InjectionFuel Injection
LayoutSOHC SingleDOHC Inline-4
Compression10.00:113.00:1
Oil capacity1.20 litre3.50 litre
Oil type10W30, 10W405W40, Motul 300V 5W40
Spark plug typeNGK CR6HSANGK LMAR9D-J
CoolingAirLiquid
Valves216
Bore54.0 mm80.0 mm
Stroke54.0 mm49.7 mm
Throttle bore48.0 mm
Weight to power13.00 kg/hp1.06 kg/hp
Power to weight76 hp/Ton946 hp/Ton
Battery typeYTX7L-BS, 12V 6Ah12V 10Ah
GearboxYamaha YBR 125BMW S1000RR
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain type
Gears count56
Primary ratio3.41.652
Final drive3.0712.588
1. gear2.643 (42 km/h)2.6471 (152 km/h)
2. gear1.778 (63 km/h)2.091 (192 km/h)
3. gear1.316 (85 km/h)1.727 (232 km/h)
4. gear1.045 (107 km/h)1.5 (267 km/h)
5. gear0.875 (128 km/h)1.36 (295 km/h)
6. gear1.261 (318 km/h)
ChasisYamaha YBR 125BMW S1000RR
Frame typeDiamond steel
Front susp.Telescopic fork, 110mm
Rear susp.Swingarm, 105.00 mm travel
Dyno chart of 2009 BMW S1000RR