Honda CBR250R.

Discussion in 'Road Warriors' started by Paulvt1, Oct 27, 2010.

  1. Gryphon12

    Gryphon12 Long timer

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    Carnation, WA USA
    My understanding of the neuro-science (as of about 5 years ago) is that the RAS at the back of our brains is responsible for screening the 40,000+ variables per minute our brains "see" in our environment down to something that our conscious minds can handle and make decisions about.

    When it comes to driving, we are all trained a little bit differently. Most "I didn't see you" car-on-motorcycle accidents happen because the driver of the car has been "trained" to only see other cars and big trucks as threats worthy of triggering action. Our eyes are our dominant sense, and the "screening" dictates most of our reactions.

    When it comes to noise, the training our brains get is even more varied. Urban vs. rural, high vs. low background noise, etc. My buddy in the Air Force learned to sleep in his barracks under the take-off path at the end of an AFB runway, but it took time to train himself to ignore the noise.

    When audible car alarms first came out, all of us paid attention when they went off. Since most were "false" alarms, now we tend to ingore them and in some cases, not hear them.

    Some exhaust sounds are routinely ignored. Like some small engines, and higher-pitched exhausts (even on high-revving sport bikes). Some sounds aren't routinely ignored. Like an 18 wheeler starting to move. Like a loud Harley revving next to you. Like racking a round into the chamber of a 12-guage pump-action shotgun.

    The studies I've read say that when it comes to noise, our "ignore" vs. "take action" threshold varies tremendously based on our personal experiences. Taking a "loud noise" precaution to try to break through a car driver's RAS screening to get his/her attention may or may not work. But because we all screen noises differently (and because some cars screen outside noised much better than others), it may be worth something. It just can't be the only thing.

    Bright colors help, but drivers still don't see us. Loud noises MAY help, but drivers still don't hear us. Riding a motorcycle is inherently dangerous, and we all mitigate that danger in different ways. Defensive riding, constant awareness, good skills, practiced strategies for escape routes all play their part. Ultimately, we are each responsible for our own choices. Just make sure that you are looking and listening for the other guy, too.
  2. Asphalt Assault

    Asphalt Assault Been here awhile

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    Dec 14, 2008
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    Vallejo, CA
    Did a nice little loop this weekend with a large riding group up here in the Bay area. The little CBR never missed a beat and really excels in the tight stuff.
    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
    Not the best shot, but I did not care for all the plastics and removed the lower cowling along with a portion of the fairing without noticing any real differences. Heated grips, larger shield and custom seat are in the works. After riding an F800S for several years, I can honestly say that this bike can handle almost any type of riding you throw at it. While it's not the most enjoyable machine on extended jolts of the freeway, I really can't complain as it handles just below 80mph on a daily basis.
  3. DiabloADV

    DiabloADV Semi-Occasional

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    Your pic doesn't show...I'd like to see what it looks like with the lowers removed. Thinking of the semi-faired look myself...can you re-post.
  4. Turtlebone

    Turtlebone Adventurer

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    Sep 18, 2012
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    San Diego
    Thanks guys for all the responses. After reading up on here and cbr250.net, I was able to have a much more enjoyable experience on my next ride. MUCH better :)
  5. sendler

    sendler Been here awhile

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  6. Treadless

    Treadless seeking adventure

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    :baldy Now just why did I have to go look at that. :lol3
  7. Toysrme

    Toysrme Been here awhile

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    bahahahahahahaha that's hillarious
  8. Nixels

    Nixels Face fears - live life

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    Riding the US in search of writing manuals
    Then it could be the Honda 305 Dream CBR. :deal

    :lol3
  9. sendler

    sendler Been here awhile

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    The new piston is high compression though and would need premium gas. At least.
  10. Toysrme

    Toysrme Been here awhile

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    It would need more than premium gas.
    Better break out a J&S box. LoL

    And hope the notoriously low quality metallurgy is fine long-term!
  11. bungie4

    bungie4 Frostback

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    Sudbury Ontario
    This.

    A buddy bought a piston ring set from some Chinese company that managed to run exactly 12 revolutions before it split cleanly in two. Inspection later revealed it was the first class heat treatment it got (none) that caused the failure.

    Pays your money, kiss it goodbye.
  12. Toysrme

    Toysrme Been here awhile

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    we use to re-do DIY repair work all the time at the dealer. the chiense can't even make gasket kits for cars that sell millions of units per generation, who wants to buy a block and piston they wont sell 1,000 of?
  13. DOUBLE-O G

    DOUBLE-O G Smooth Operator

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  14. garrett the nerd

    garrett the nerd Sprocket Protector

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    Like everything about that except those bags; they look like they belong on an 80's-era Suzuki GS :huh
  15. sendler

    sendler Been here awhile

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    Here is the dyno chart of the CBR250R with the optimum shift points painted on to give an idea of how much power band we are using and how it related to the engine torque band.
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    [​IMG]
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    .
  16. larryboy

    larryboy Chopper Rider

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    On a set of 50,000 mile tires.
    Never heard of anybody shifting at the torque peak, torque gets you moving, I shift at the HP peak...nice to know I've been shifting right according to my butt dyno right at 8500, falls on its face right about 8600 anyways.

    Raining cats and dogs, ordered winter tires last week and they're not here yet...should be fun today!!

    :freaky


    14,000 on the stock tires, probably 6k left in them, but I don't really trust the rear in the wet.

    Gonna put on some BT45's for the winter, then finish off the stocks in the spring. Thinking about trying the radials that come on the WR250R for next summer.
  17. rs42sport

    rs42sport Been here awhile

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    glenview, il
    Damn Larry already at 14k... Any problems so far?? How many miles to a tank now or is there no change...
  18. larryboy

    larryboy Chopper Rider

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    On a set of 50,000 mile tires.

    I should put a drive chain on it, I lube it twice a day trying to get more out of it. Seems pretty good once it gets some heat in it, then lumpy and ugly when it cools down. :lol3

    MPG's have stayed the same at 58. If I get favorable winds both directions I've come close to 61 mpg. Low of 48 mpg pushing a wicked head wind, little guy wouldn't pull 6th that day. High of 68 mpg riding back roads under 60 mph.

    Local dealers still can't get the ZG wind screens for the 250, it's on their website for ordering as of last week...gonna order the touring screen.


    No problems with the bike itself, runs great and doesn't burn oil.
  19. Bugz

    Bugz Been here awhile

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    Jan 30, 2011
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    I think you're looking wrong at the graph. The right lines show the shift points, the left lines (which all have the same colours as the right ones)) show where you will get after you shifted up.

    Imagine pinning the bike in second (yellow line) thus around 9800 rpm, the rpm will drop to 7300iesh

    Im only not sure about the 1st gear. Seems like a really big RPM drop to me.
  20. sendler

    sendler Been here awhile

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    First gear has to redline. It is that much jump to second.