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  1. #1 BIG BORE KIT FOR DONG FANG 250 BOBBER ? 
    C-Moto Senior SR.MAILMAN's Avatar
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    I wanted to start this thread to see if their was any interest in a 70mm piston upgrade, to make a TRUE 250cc engine.

    Hopefully this link will have them in October this year.

    4 Stroke Big Bore Kits
    2011 Yamaha Star 250
    2010 DF 250 Bobber (sold)
    2009 Triumph Bonneville T100
    1993 Kawasaki Vulcan88(sold)
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  2. #2 Re: BIG BORE KIT FOR DONG FANG 250 BOBBER ? 
    Senior C-Moto Guru barnone's Avatar
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    Did you get a response from that site? I'm interested.
    Here is the one that I've been trying to get but it appears to be vapor ware. CG400?
    http://www.alibaba.com/product-gs/37...ine_400cc.html
    Someone could sell a bunch of these engines if they exist to the DF250RTB, DF250RTC, Heist,etc owners.
    Last edited by barnone; 08-20-2011 at 10:45 PM.
    Vince
    2015 Ural cT sidecar
    2009 Suzuki TU250X
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  3. #3 Re: BIG BORE KIT FOR DONG FANG 250 BOBBER ? 
    C-Moto Senior SR.MAILMAN's Avatar
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    Hello Bruce M,

    Thanks for your request.

    We hope that you will return to visit us often and follow our updates.

    Martin Beaumier
    MBE Motorsports inc.
    info@mbe-motorsports.com
    www.MBEMotorsports.com

    The web site mentions October, as a target date. I think he is putting out "feelers" to see what the interest might be...
    2011 Yamaha Star 250
    2010 DF 250 Bobber (sold)
    2009 Triumph Bonneville T100
    1993 Kawasaki Vulcan88(sold)
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  4. #4 Re: BIG BORE KIT FOR DONG FANG 250 BOBBER ? 
    Senior C-Moto Guru barnone's Avatar
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    Yeah, that is the reply that I got. Nothing else when I emailed them.
    Vince
    2015 Ural cT sidecar
    2009 Suzuki TU250X
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  5. #5 Re: BIG BORE KIT FOR DONG FANG 250 BOBBER ? 
    C-Moto Not-so-Noob
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    hmmm wouldnt this tech work with the CCW bikes since they basicaly have the same motor...
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  6. #6 Re: BIG BORE KIT FOR DONG FANG 250 BOBBER ? 
    Senior C-Moto Guru barnone's Avatar
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    Should work since they are both 167FMM (CG250) engines. However the gain is only 21cc or so. Doubt it will make a big difference in performance.
    We need a 400-500cc easy to swap engine.
    Vince
    2015 Ural cT sidecar
    2009 Suzuki TU250X
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  7. #7 Re: BIG BORE KIT FOR DONG FANG 250 BOBBER ? 
    C-Moto Not-so-Noob
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    Yea I have thought about swapping in a ninja 250 engine when I get my Heist... It actually 249cc, more hp and with the 6spd can actually go over 100mph.
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  8. #8 Re: BIG BORE KIT FOR DONG FANG 250 BOBBER ? 
    Senior C-Moto Guru barnone's Avatar
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    Swapping in a water cooled 250cc engine will be very complicated. You should be looking at a different bike if you want to go 100 mph.
    Vince
    2015 Ural cT sidecar
    2009 Suzuki TU250X
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  9. #9 Re: BIG BORE KIT FOR DONG FANG 250 BOBBER ? 
    C-Moto Not-so-Noob
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    Ok I should of said go over 75... I would just like to be able to take it on the highway from were my parents live to my inlaws so about 40min in 65mph zone. I see people doing all these modded carbs and custom head work figured it would cost around the same to just get a used ninja engine but with more benafit...
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  10. #10 Re: BIG BORE KIT FOR DONG FANG 250 BOBBER ? 
    C-Moto Not-so-Noob
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    What do you guys think the real world gain will be with the big bore kit?
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