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It's the trail force that's the important factor in keeping the bike upright, and this factor doesn't exist without friction coming from the front wheel. So it is a big deal. The gyroscopic forces are minimal, and bikes have been successfully ridden with them minimized (tiny wheels) or not present (same size wheel spinning opposite direction of the front wheel). http://www.newscientist.com/article/mg19325892.700 http://www.newscientist.com/article/mg19225812.400 http://www2.eng.cam.ac.uk/~hemh/gyrobike.htm
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Aug 9, 2009 17:30
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| # ¿ May 21, 2024 13:57 |
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NoCleverName posted:How long does it take your Ninjettes to warm up? I don't know if I'm being impatient with the warmup time, but the first time I ride my bike after it's cooled down, it takes forever to actually get going. Letting off the clutch as slow as I can stalls the bike. Giving throttle while I'm letting off the clutch stalls the bike. Eventually I can get it going and then it will behave better from that point onwards, but that initial start is always a bitch. I had to move it today, and it took probably 10 minutes until it would move without stalling. This was several minutes after it no longer required choke to idle.
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Aug 14, 2009 01:07
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Fiancee ditched her old-gen 250 for a 2009 slightly-used one. It's got about 1900 on it, full Yoshimura exhaust (good for 2.3hp or something - no joke) with jet kit (~.75hp or something), but it sounds pretty good, and she loves the everliving poo poo out of it already. She's very impressed with the better mid-range power, and increased throttle response, too.
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Aug 26, 2009 17:52
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Methusulah posted:I'm thinking an 08+ 250 or an ex500. I saw a super-bitchen-sweet r6 at the yamaha dealer that's actually the mechanics', has the goofy fender eliminated and is priced to own (6k) but then Z3n mentioned earlier about being comfortable on a bike, and I realize I'm not. cornering still gives me some trouble, and I'd like to stay on a 250, at least until i'm 25 and insurance goes down a bit. Full coverage on my ex250 was 16 bucks a month, and that gives my inner Clark Howard a hard on. My old Buell XB12 was like $250/yr, my current Speed Triple is like $300/yr (both full coverage). Things like an SV650 or FZ6 aren't too bad insurance wise, but few will be down in the vicinity of your 250. If you're looking for a faster bike that won't be a mint to insure, look beyond the R6.
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Oct 20, 2009 01:15
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Guys with the newer version 250's, does yours 'wheeze' occasionally? I think the tank is just venting, but my wifes wheezes out of the tank every.. oh, hour, I'd say. It's a weird noise, and there's no performance problems or anything, just a weird quirk.
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Jul 22, 2010 00:45
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