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First it was said that the SV6650 would be a good beginner bike and when looking at the old models that carried the same power as the Duc 620, then of course Japan upgraded it to its current power levels, putting it out of the hands of any smart beginner - lol - now Japan is pushing this as the newest beginner bike - http://www.ninja650.com/ - these are the same folks that tell their beginners that they must learn on a 250cc bikes their first year - whats wrong with this picture?
 

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I think they came out with the Ninja 650 as competition for the SV, since the SV650 was kind of in a class of it's own for Japanese bikes. Some people either don't want to start on a 250/500 for fear of "outgrowing" it, or just don't like the old design of the small Ninjas.
 

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i still think the sv is the best bike to begin on for people looking to become good riders. its not too powerful, but certainly powerful enough. It looks sporty. it has sporty ergos. it doesnt have too steep of a rake angle.
 

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There's a difference in ninja 650 and sv650. They may yield similar power in low and mid range, but the engines are quite different. Ninja 650 uses new vertical/parallel twin, same type found in ninja 250/500. While SV650/1000 has a regular sport v-twin powerplant refined from its TLS/TLR series, generally similar to RC51 and Ducs engines (besides the Desmo stuff). I don't know what the new 650r sounds like, but the old 250/500 sounded like low-pitched sewing machine, far from throaty v-twins.
 

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does the difference in v-twin design have anything to do with sound? i thought the 250/500 sounding like a sewing machine would be because of the displacement?
 

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I am no engineer, but inline 4s, inline triples, V-4, V-5, parallel twins, single, v-twins, and GP Big Bang engines all sounded different when I hear it. Most apparent are the difference between v-twins and inline 4 since they're most common on the road

Edit: engine or cylinders layout/configuration probably does have something to do with it, as is the cylinders firing order, Ducs and Japanese twins sound significantly different than Harleys and choppers.
 

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Z_Fanatic said:
I am no engineer, but inline 4s, inline triples, V-4, V-5, parallel twins, single, v-twins, and GP Big Bang engines all sounded different when I hear it. Most apparent are the difference between v-twins and inline 4 since they're most common on the road

Edit: engine or cylinders layout/configuration probably does have something to do with it, as is the cylinders firing order, Ducs and Japanese twins sound significantly different than Harleys and choppers.

ya i understand the differences between all of the others, i just kinda thought a sport twin sounded like a sport twin. but, i dont know how the layout is different other than it being parallel. so im sure if its really different, than it does have something to do with the sound
 
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