Quote:
Originally Posted by Walkabout
Torque is far more to do with the stroke of the engine, a classic feature of 600+cc singles, than it is related to the overall engine capacity.
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Actually, in a first approximation, torque is proportional to engine capacity.
A good first guess is 10 Nm / 100 cc for regular 4-stroke engines not turbocharged.
A bit more than the above figure for power-optimized engines, a bit less for quieter engines.
Examples:
CRF1000L 98 Nm 9.8 Nm/100cc
Versys 650 64 Nm 9.8 Nm/100cc
WR450F 49 Nm 10.9 Nm/100cc
Multistrada 1260 129 Nm 10.2 Nm/100cc
Hayabusa 154 Nm 11.5 Nm/100cc
BMW R1200GS 125 Nm 10.7 Nm/100cc
Triumph Street 675 68 Nm 10.1 Nm/100cc
Now if you take older/quieter engines
CRF250L 22 Nm 8.8 Nm/100cc
CB500X 43 Nm 8.6 Nm/100cc
GSX750 66 Nm 8.8 Nm/100cc
DR650 54 Nm 8.3 Nm/100cc
HD 883 68 Nm 7.7 Nm/100cc
KLX150 11.3 Nm 7.8 Nm/100cc
RE Himalayan 32 Nm 7.8 Nm/100cc
Seems to hold, don't you think?
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