Yamaha YBR 125
10 hp, 125 cc, 287 lbs2005 - 2016
Suzuki GSX-R600
125 hp, 599 cc, 397 lbs2004 - 2005
EngineYamaha YBR 125Suzuki GSX-R600
Displacement125 cc599 cc
Max power10 hp (@7 800 RPM)125 hp (@13 500 RPM)
Max torque6 lb ft (@6 000 RPM)49 lb ft (@11 500 RPM)
Redline10 000 RPM15 500 RPM
Idling speed1 250 RPM1 300 RPM
ManagementFuel InjectionFuel Injection
LayoutSOHC SingleDOHC Inline-4
Compression10.00:112.50:1
Oil capacity1.14 quart3.41 quart
Oil type10W30, 10W4010W40, Motul 300V 10W40, Shell Rotella 10W40
Spark plug typeNGK CR6HSANGK CR9E, DENSO U27ESR-N
CoolingAirLiquid
Valves216
Bore54.0 mm67.0 mm
Stroke54.0 mm42.5 mm
Throttle bore38.0 mm
Weight to power28.66 lbs/hp3.17 lbs/hp
Power to weight87 hp/2500lbs787 hp/2500lbs
Battery typeYTX7L-BS, 12V 6Ah12 V 28.8 kC (8 Ah)/10 HR, FTX9-BS
GearboxYamaha YBR 125Suzuki GSX-R600
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain type
Gears count56
Primary ratio3.41.926
Final drive3.0712.812
1. gear2.643 (26 mph)2.785 (76 mph)
2. gear1.778 (39 mph)2.052 (103 mph)
3. gear1.316 (53 mph)1.681 (125 mph)
4. gear1.045 (66 mph)1.45 (145 mph)
5. gear0.875 (79 mph)1.304 (162 mph)
6. gear1.181 (179 mph)
ChasisYamaha YBR 125Suzuki GSX-R600
Frame typeDiamond steelTwin-spar black coated
Front susp.Telescopic fork, 110mmUSD, Telescopic, coil spring, oil damped, 120mm stroke
Rear susp.Swingarm, 4.13 in travelLink type, coil spring, oil damped, 5.12 in travel