Triumph Street Triple 660 S
55 hp, 765 cc, 419 lbs2017 - 2018
Suzuki SV650
75 hp, 645 cc, 434 lbs2016
EngineTriumph Street Triple 660 SSuzuki SV650
Displacement765 cc645 cc
Max power55 hp (@9 300 RPM)75 hp (@8 500 RPM)
Max torque39 lb ft (@5 200 RPM)47 lb ft (@8 100 RPM)
Redline12 650 RPM10 000 RPM
Idling speed1 200 RPM1 200 RPM
ManagementFuel InjectionFuel Injection
LayoutDOHC Inline-3DOHC V-twin
Compression12.47:111.20:1
Oil capacity3.29 quart
Spark plug typeNGK CR9EIA9
CoolingLiquidLiquid
Valves128
Bore75.0 mm81.0 mm
Stroke48.48 mm62.6 mm
Throttle bore39.0 mm
Weight to power7.62 lbs/hp5.79 lbs/hp
Power to weight328 hp/2500lbs431 hp/2500lbs
Battery typeYTX-9BSYTX12-BS, 12V, 10Ah
GearboxTriumph Street Triple 660 SSuzuki SV650
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain typeRK XW-ring, 118 linkDID525V8
Gears count60
Primary ratio1.85
Final drive2.88
1. gear2.62 (67 mph)
2. gear1.95 (90 mph)
3. gear1.57 (112 mph)
4. gear1.35 (130 mph)
5. gear1.24 (141 mph)
6. gear1.14 (153 mph)
ChasisTriumph Street Triple 660 SSuzuki SV650
Frame typeTwin-spar aluminumTrellis steel frame
Front susp.Showa 41mm USD SFF, 4.33 in travel41mm fork, 4.92 in travel
Rear susp.Showa monoshock, 4.88 in travelLink-type suspension