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August 5th, 2013, 02:53 PM
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#1 |
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ninjette.org member
Name: Zach
Location: Colorado Springs
Join Date: Mar 2011 Motorcycle(s): 96 Ninja 250EX , 87 CBR 1000, 86 TRX 260R, 86 KXT 250, 84 ATC 200X, 82 ATC 250R (w/CR480) Posts: 134
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Highway speed in relation to rpm..
Just had a few questions relating to rpm's at highway speed..
Just put a new used motor in the ninja and took it for it's first long trip more than just around town... Almost 300 miles round trip... Cruising on highway speedo said 75 mph I'm guessing it was more like 65 mph actual 75 speedo equals out to about 8700-9000 rpm and 80 is just under 9500.. Do those numbers sound about right.. Is it recommended to cruise at or above 9000rpm or should I look into possibly a front sprocket change to get the numbers down... I'm just concerned with the long term affects of running at 9000 rpm or over for a prolonged period of time |
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August 5th, 2013, 03:13 PM
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#2 |
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The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much.
MOTY 2015, MOTM - Nov '12, Nov '13
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Sounds about right and nothing wrong with riding for hours at high RPMs. The lil bike loves da rrrrrrr's. Just keep the oil changed and full and ride on. A 15t front and 44/42 rear should make it much more mild.
__________________________________________________
Goal: Shake A Million Hands | Look through the corners | Track Day Prep | Closest track? | The Mid-Ohio School |
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August 5th, 2013, 03:21 PM
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#3 |
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ninjette.org member
Name: tom
Location: nyc
Join Date: May 2013 Motorcycle(s): '89 klr 650, '00 250r Posts: 177
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yup sounds right, i have the stock rear and +1 cs, i think 75mph indicated is about 8500 rpm. gps said it's 71 though.
if your unsure check here http://faq.ninja250.org/speed/ |
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1 out of 1 members found this post helpful. |
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August 5th, 2013, 04:10 PM
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#4 |
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ninjette.org member
Name: Brian
Location: Atlanta
Join Date: Dec 2012 Motorcycle(s): 250 Ninja Posts: 179
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With the Pirelli MT75's and 15/39 gearing, my 04 indicates 7500 rpm at 75 mph.
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