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#1 |
ninjette.org member
Name: Peter
Location: Toronto
Join Date: Apr 2010 Motorcycle(s): 09 Ninja 250r Blue Posts: 32
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Top Speed?
Hey guys
Was wondering what you all have experience as your top speed swith a stock Ninja 250. Not downhill, no back wind, just a straight modest top speed. I ask Cuz the most my Ninja goes is 93 mph and I think it should be more. I've heard anywhere from 95mph to 105mph. I have done the shim DIY and snorkel removal, 2 washers on each. |
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#2 |
I'm lovin' it.
Name: Mike
Location: Melb, Australia
Join Date: Feb 2009 Motorcycle(s): '09 Black 250R Posts: A lot.
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Those "95-105mph" figures are indicated, but as most people will tell you the speedo is off by roughly ~8-10%.
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Son: When I grow up I want to ride a motorbike. Father: You can't do both son. |
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#3 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
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when my ninja was stock, it's jetting was rancid. couldn't get her above 85ish on flat ground according to gps. did a jet kit and now it tops out at the rev limiter fairly easily... not sure what speed this is since i stopped carrying a gps with me since it's been jetted, but the speedo reads about 110... should be about 95-100.
side note- it's a bad idea to run it that high on public roads.
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#4 |
ninjette.org certified postwhore
Name: Rick
Location: Alexandria, Louisiana
Join Date: Jan 2009 Motorcycle(s): 05 Blue Ninja 250 Posts: Too much.
MOTY - 2017, MOTM - Jan '19, Oct '16, May '14
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My "indicated" top speed has been 110 mph. My actual is probably 105. Keep in mind that it took me at least 2 miles to finaly get to that speed.
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#5 |
ninjette.org certified postwhore
Name: Eric
Location: Iowa City
Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot.
Blog Entries: 54
MOTM - Sep '18, Feb '16
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the speedo is off by 10 %.So at 110 you should be indicating about 100 and at 55 you should indicate about 50.
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#6 |
ninjette.org guru
Name: Samer
Location: Jupiter, Florida
Join Date: Sep 2009 Motorcycle(s): 09 Ninja 250R SE Posts: 376
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It does seem somewhat slow because I've hit 100 mph GPS on mine and I have not modified a thing on mine. South Florida is pretty much all flat so it is an even playing field.
Do you tuck in all the way? It almost goes without saying but I'm just wondering what it could be. You should be pretty much right on the red-line in 6th gear, and the speedometer should read somewhere slightly above 100 mph. |
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#7 |
ninjette.org certified postwhore
Name: Eric
Location: Iowa City
Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot.
Blog Entries: 54
MOTM - Sep '18, Feb '16
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Aerodynamics are everything when you only have 30 hp to fight the wind with.
Be careful getting into a tuck on the street. First of all you r view of the road ahead is not good.And even if you are only going 55 .The cops will see you and figure you are on a sport bike all tucked down .You must be speeding. |
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#8 |
You are sleeping
Name: Casey
Location: LMFAO!!!
Join Date: Nov 2009 Motorcycle(s): 2 Posts: A lot.
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This seems to be correct in my case. The amount the speedo is off is proportionate to how fast you are going. I.e.. the faster you go, the more the speedo is off. I indicate 101 when I'm going 90ish. About 50mph when indicating 55
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#9 |
The Sportisi Master
Name: Matt
Location: Chico
Join Date: May 2009 Motorcycle(s): 2008 Ninja 250 Posts: A lot.
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fastest guy on here is Eric and he is at 112 with mods. I think 105 confirmed is max with the rider weight at 120 pounds.
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#10 |
ninjette.org guru
Name: Samer
Location: Jupiter, Florida
Join Date: Sep 2009 Motorcycle(s): 09 Ninja 250R SE Posts: 376
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#11 |
ninjette.org sage
Name: Josh
Location: Richmond VA
Join Date: Oct 2009 Motorcycle(s): 2008 Triumph Bonneville Black Posts: 627
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100 indicated. I have yet to borrow a gps to check against the speedo.
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#12 |
2012 is here,let's ride!!
Name: dex
Location: visalia,ca.
Join Date: Sep 2009 Motorcycle(s): 2009R,'12 suzuki +500 Posts: 354
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by experience 102-104mph flat straight shot road
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#13 | |
The Sportisi Master
Name: Matt
Location: Chico
Join Date: May 2009 Motorcycle(s): 2008 Ninja 250 Posts: A lot.
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Quote:
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Sportisimoto USA is born. |
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#14 | |
ninjette.org member
Name: Kensai
Location: New Jersey
Join Date: Sep 2009 Motorcycle(s): Blue 2009 Ninja 250R Posts: 103
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Quote:
try sliding a paper across a table; easy enough right? now try it again with a brick on top of it... |
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#15 | |
ninjette.org dude
Name: 1 guess :-)
Location: SF Bay Area
Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much.
Blog Entries: 7
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Quote:
As for the second example, if that piece of paper with a brick on it had a nice set of wheels on it and the same force pushing it along the table, it would reach the same terminal speed as a hollow brick of the same size. ![]()
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Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered) |
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#16 |
ninjette.org member
Name: Kensai
Location: New Jersey
Join Date: Sep 2009 Motorcycle(s): Blue 2009 Ninja 250R Posts: 103
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I stand corrected
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#17 |
love to ride
Name: George
Location: Bloomington, IN
Join Date: Apr 2010 Motorcycle(s): 2010 Kawasaki Ninja 250r Ebony/Candy Persimon Red Posts: 53
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my local speed limits max out at 70 mph so of course I have never even tried to go over that!
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#18 | |
ninjette.org guru
Name: Andrew
Location: Vancouver, BC
Join Date: Jul 2009 Motorcycle(s): 2009 Kawasaki Ninja 250R Posts: 410
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Quote:
I'm 210, buddy of mine is 140. If we share the same 250R, run the same launch, shift points, tuck and statistically-impossible weather and road conditions, the 140lb rider will be faster, guaranteed. If you don't believe me, put a couple of 45lb barbell plates into a backpack and see how close you get to your own top speed. No really, try it. |
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#19 |
ninjette.org certified postwhore
Name: Eric
Location: Iowa City
Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot.
Blog Entries: 54
MOTM - Sep '18, Feb '16
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For what I do weight only matters because I" ONLY " Have one mile to accelerate. I am still gaining speed . For 1/4 mile weight is everything.
In theory weight dose not matter for top speed . But a 175 lb cyclist with 4 % body fat will go faster than a 175 ball of fat that watched to much TV. Because of the shape and aerodynamic drag from the larger sized rider. For the record ..Drag racing is Weight VS HP. And top speed racing is Aerodynamic drag VS HP. Both in a straight line. |
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#20 | |
ninjette.org guru
Name: Samer
Location: Jupiter, Florida
Join Date: Sep 2009 Motorcycle(s): 09 Ninja 250R SE Posts: 376
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Quote:
For anyone surprised by the top speed thing, one way to think of it is that the heavier person with the exact same shape as the lighter person will just take longer to get to top speed because it takes more energy to get there. Weight absolutely affects acceleration (obviously) and unless you're going on a completely straight road at one speed the whole way, it impacts gas milage as well. |
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#21 | |
ninjette.org dude
Name: 1 guess :-)
Location: SF Bay Area
Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much.
Blog Entries: 7
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Quote:
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Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered) |
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#22 |
Fighting Texas Aggie '05
Name: Neil
Location: Hutto, TX
Join Date: Feb 2009 Motorcycle(s): '07 ZX6R, '08 Versys, '09 250R Track, '93 F2/F3 Track Posts: A lot.
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corrected. no arguement from me that aero is THE much much more important factor, but it an objects mass does have an effect on the velocity at which a rolling object stops accelerating due to opposing forces even if it is so minute.
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#23 | |
ninjette.org certified postwhore
Name: Travis
Location: Warwick, RI
Join Date: Apr 2009 Motorcycle(s): 2009 Ninja 250R Posts: A lot.
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Quote:
![]() You can get an easy 5mph out of tucking. But yes the cops will be watching for you.
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#24 | |
ninjette.org certified postwhore
Name: Eric
Location: Iowa City
Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot.
Blog Entries: 54
MOTM - Sep '18, Feb '16
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Quote:
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#25 | |
Newb..... on a steeek! :D
Name: Mike
Location: Windermere, FL
Join Date: Feb 2009 Motorcycle(s): 2012 Harley Davidson XL883L Sportster Superlow Posts: A lot.
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Quote:
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#26 |
ninjette.org certified postwhore
Name: Eric
Location: Iowa City
Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot.
Blog Entries: 54
MOTM - Sep '18, Feb '16
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with a 10% error with the speedo . A first gen on flat ground with a tail wind could make a rider think they are going 120
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#27 |
Newb..... on a steeek! :D
Name: Mike
Location: Windermere, FL
Join Date: Feb 2009 Motorcycle(s): 2012 Harley Davidson XL883L Sportster Superlow Posts: A lot.
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Yah, I tried explaining that to him. Still wouldn't listen or believe me cause the cop told him he was doing 120mph, or so he claims it happened.
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#28 |
ninjette.org certified postwhore
Name: Dave
Location: Michigan
Join Date: May 2009 Motorcycle(s): 2009 Kawasaki Ninja 650RTE & 2009 Kawasaki Ninja 250R (SOLD) Posts: A lot.
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108 MPH! GPS confirmed
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#29 |
motorcycle rider
Name: Bruce
Location: Victoria, BC
Join Date: Apr 2009 Motorcycle(s): '14 Yamaha V-Star 650 Custom (silver) Posts: A lot.
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Hmm. There was a lengthy, positive review of the 250r in Motorcycle Consumer News a year or two ago where they took a stock 250r to a track and clocked a top speed of only like 96 mph or something. Maybe their test bike was a bit of a dog, but I can't see a stock bike doing much over 100 mph...
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#30 |
ninjette.org dude
Name: 1 guess :-)
Location: SF Bay Area
Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much.
Blog Entries: 7
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Just about all the published reviews have it between 92 and 95. Stock gearing/stock tires has the engine turning 12,300 RPM at 100 mph; and an unmodified bike isn't likely to have enough oomph left at that RPM to pull the bike at 100 mph; the power started tailing off well before then. Headwinds/tailwinds make a huge difference when we are so power-limited, so I have no doubt that some folks have seen a true 105 mph or even more on perfectly stock bikes in the right conditions, but duplicating it on flat ground with no wind is unlikely at best.
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Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered) |
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#31 |
ninjette.org certified postwhore
Name: Eric
Location: Iowa City
Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot.
Blog Entries: 54
MOTM - Sep '18, Feb '16
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all top speed comments be must stated under what circumstance.In other words. Was it top speed in one mile two miles 1/4 mile . Coming off the high banks at Daytona.
But your top speed without gear change and with favorable wind on flat ground in one mile is 97mph@ 12300 rpm. One tooth gear change will drop the RPM lots and raise speed a little Last futzed with by Racer x; May 29th, 2010 at 05:15 AM. |
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