Sportbike World banner

1 - 5 of 5 Posts

·
Registered
Joined
·
16 Posts
Discussion Starter #1
Hi,

I was gonna get a 600 cc as my first bike but after reading everything on this site for a few months, i decided it's not a good idea. I really don't like how the ninja's look at all, but I like the sv650 and i read the forums and a lot of people said that the sv650 is an excellent first bike. I went to a local dealer, it looked nice. I sat on it, it felt just like the 600s. My question is why would the sv650 be ok for a beginner bike when a 600 cc wouldn't be because to me they both felt the same. And doesn't the sv650 actually weigh more than some of the 600 cc and it has a bigger displacement, so I'm kind of confused as to why the same people who said don't get a 600 cc said it's ok to start on a sv650. I'm 5 10, and 140 lbs, 21 years old and have no experience on motorcyles but will take an msf course before i buy one. I already decided i don't want a ninja or any bike that doesn't have that sporty look to it. So would the Sv650s be good and how come it's ok when it's a 650cc but a 600cc isn't ok? Thanks for ur help.
 

·
Registered
Joined
·
8,798 Posts
SV650 will be a great starter.
Here are the reasons. The SV is a twin, in a milder state of tune then the 4cyl inline supersports....
The general explanation goes somewhat like this... If you look at any bike stats you'll see HP and Torque. Assuming the Torque was the same, if it is at higher rpm, the engine will develop more power. If its at lower rpm, the engine will be more friendly, with a better low end. The point at which peak torque hits is controlled (mostly) with cam profiles.
Now, twins cannot spin as fast as inlines. Its because their pistons are heavier, and create more vibration when they change direction. For this reason, most twin engines are tuned to produce their power down low, also there are exceptions (Look at ducati supersport.

An Race-rep inline 4 (600cc) will produce virtually no power untill 6k rpm. Its real easy to stall... it produces some power between 6-10krpm, and around 10k they start making lots and lots of power. An SV650 on the other hand will start with decent power at around 2k. This power will climb very predictably with the rpm, untill it hits red line at around 9-12k (dont remember). So it makes less power, but in a more predictable fassion, without the suprisingly peaky nature of inline 600.

Another thing to look at is rake, trail, and wheelbase numbers. These in combination define the stability and manuverability of a bike. Really short trail, small rake, and short wheelbase bikes will be twitchy, responding very quickly to every input (wether its a correct or a mistaken one), and will have a lesser tendancy to try to come back up after being leaned. More rake, trail and wheelbase, will make the bike more stable, more forgiving to accidental inputs, and the bike will have more of a tendancy to stand back up after a lean, but it will require more effort to make it turn.

Hope that helps.
 

·
Registered
Joined
·
217 Posts
simply put, the SV is a much more predictable bike. the power is predictable, and so is the steering geometry. full out race reps are pushed to the limits in every way (chasis, engine, steering), and as a newbie, you dont want to be messing with that.
 
1 - 5 of 5 Posts
Top