Yamaha R3 Forums banner

1 - 20 of 119 Posts

·
Registered
Joined
·
391 Posts
Discussion Starter #1
Check out this picture of the R25's speedo at 12,500 RPM. 173 kmh or 107.5 mph. So figure with the increase of 50cc's R3 will get 115 mph is MORE than possible ;):D

 

·
Registered
Joined
·
308 Posts
That is really fast for a bike of this power. I would have expected that there would be a top speed limiter on the the R3 that would stop it from going quite that fast, even if it was mechanically capable of going that fast.
 

·
Registered
Joined
·
308 Posts
Is it possible that picture was taken on a prototype that might not have a rev limiter or top speed limiter installed yet? Or do they want the bike to go that fast so that people can take it to the track?
 

·
Registered
Joined
·
665 Posts
it's quite possible that it was from a prototype, i wouldn't doubt that.

too bad there's not more showing the bike that it was on.
 

·
Registered
Joined
·
391 Posts
Discussion Starter #10
Is it possible that picture was taken on a prototype that might not have a rev limiter or top speed limiter installed yet? Or do they want the bike to go that fast so that people can take it to the track?
if you want the truth 173 km is not THAT fast, for a motorbike that is. My boss is a Ducatisti and he was telling me he regularly gets up into the 200's when the road opens up...
 

·
Registered
Joined
·
376 Posts
Impressive for a 250cc bike most bike shakes and are unstable around that speed.
 

·
Registered
Joined
·
391 Posts
Discussion Starter #12
Impressive for a 250cc bike most bike shakes and are unstable around that speed.
agree, which is what bothers me about those folks who have been complaining since day one that R25 doesnt have this and R3 needs t have that (XBHP comes to mind ;):D) Especially the suspension has been a real point of contention. For a bike that "supposedly" has trash for a frame and trash for a suspension it looks surprisingly stable, for trash that is ;):D>:D
 

·
Registered
Joined
·
37 Posts
I'd bet big money this bike won't touch 112 stock! Love to EAT my words!!!!!! Put a 4' 10" 90# honey on it, all tucked in at say 5 o'clock in the morning (no wind) and... well, you might have a chance.
Man, I sure hope so!!!!!!!!!
 

·
Registered
Joined
·
222 Posts
I'm confident the rev limiter will be above redline like every other bike I've owned. They do it to protect the engine, not to limit speed or for safety concerns. You would likely only reach it going down hill at maybe 118 mph. A small displacement bike like this will be hard to reach red line in 6th gear due to wind resistance. I'm going to say 110 mph actual for the top speed....just a guess. The Ninja 300 top speed is 106 by most accounts. I could never get mine to that speed though....it takes a lot of nerve and a long straight road. Above 90 mph, acceleration was very slow. 95 was as fast as I've been on a Ninja 300. The bike was starting to feel less planted at that speed too. Confession: I have never reached the rev limiter on any bike. I just don't like to ride above red line for fear of damaging the engine.
 

·
Registered
Joined
·
37 Posts
And... just to push the point, you could never trust the bike's speedometer! (always optimistic, 5-7%) A radar gun or GPS is a must if you really want accuracy!!
 

·
Registered
Joined
·
222 Posts
The only bike I have that is accurate is the Zero S. It communicates via Bluetooth with your I-phone so you can adjust regenerative braking, top speed, and power in eco mode via a Zero app. You can also get more accurate read outs of remaining charge, GPS, top speed, etc. then compare the readings from the app on your phone vs. the readings from the bike.
 

·
Registered
Joined
·
665 Posts
And... just to push the point, you could never trust the bike's speedometer! (always optimistic, 5-7%) A radar gun or GPS is a must if you really want accuracy!!
I actually found a smartphone GPS to be great for finding out your speed, surprised how accurate it can be, plus something everyone has.
 

·
Registered
Joined
·
376 Posts
I'm confident the rev limiter will be above redline like every other bike I've owned. They do it to protect the engine, not to limit speed or for safety concerns. You would likely only reach it going down hill at maybe 118 mph. A small displacement bike like this will be hard to reach red line in 6th gear due to wind resistance. I'm going to say 110 mph actual for the top speed....just a guess. The Ninja 300 top speed is 106 by most accounts. I could never get mine to that speed though....it takes a lot of nerve and a long straight road. Above 90 mph, acceleration was very slow. 95 was as fast as I've been on a Ninja 300. The bike was starting to feel less planted at that speed too. Confession: I have never reached the rev limiter on any bike. I just don't like to ride above red line for fear of damaging the engine.
That's about right for the ninja 300. I don't see why anyone needs to ride above red line unless your in a drag strip or track (even then people dont redline at track.)
 

·
Registered
Joined
·
92 Posts
I will NOT be thinking about top speed at all when I look at this bike.
I DO want to know that it feels comfortable at motorway/highway speeds - say 70 - 80 MPH..
That will do for me.

How it performs in the mid-range, around the local bends, up the local hills, and general acceleration thrills is key for my purchase.
 

·
Registered
Joined
·
25 Posts
I will NOT be thinking about top speed at all when I look at this bike.
I DO want to know that it feels comfortable at motorway/highway speeds - say 70 - 80 MPH..
That will do for me.

How it performs in the mid-range, around the local bends, up the local hills, and general acceleration thrills is key for my purchase.


+1. Only reason I look at top speed, it gives an idea of how relaxed it is going to be during everyday ride. Personally I hate motorcycles which are screaming their lungs out at average highway speeds. 120 kmph ~ 7k rpm in 6th gear would be ideal, with enough room for overtakes without downshifts.
 
1 - 20 of 119 Posts
Top