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Old 03-23-2012, 05:51 PM   #29 (permalink)
sendler
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Join Date: May 2011
Location: Syracuse, NY USA
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Honda CBR250R FI Single - '11 Honda CBR250R
90 day: 105.14 mpg (US)

2001 Honda Insight stick - '01 Honda Insight manual
90 day: 60.68 mpg (US)

2009 Honda Fit auto - '09 Honda Fit Auto
90 day: 38.51 mpg (US)

PCX153 - '13 Honda PCX150
90 day: 104.48 mpg (US)

2015 Yamaha R3 - '15 Yamaha R3
90 day: 80.94 mpg (US)

Ninja650 - '19 Kawasaki Ninja 650
90 day: 72.57 mpg (US)
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Quote:
Originally Posted by renault_megane_dci View Post
70 mph with a tuned 125 in a faired bike is a little disappointing given a CBR 125 would do 80 mph with pretty much the same engine (2 valve single.

I guess it is all about gearing (the CBR is 6 speed when the GN is 5) and fairing (a CBR 125 is really a small bike)
Nobody I have ever talked to has been able to do much more than 75 mph on a CBR125R regardless of gearing. But it would go faster with a full Vetter style streamliner body and could probably keep up with them in competition. You can get them close to 15hp with a loud exhaust.
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