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Thread: 4130 Chromoly Frame ATC250R

  1. #31
    Join Date
    Apr 2011
    Location
    Mexico
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    Quote Originally Posted by Poco Loco View Post
    You never hear anybody speak of shot peen. I worked in a shop where we did shot peen on aircraft parts. That would be a great investment to a freshly built raw frame. It releaves any stress in the steel from welding, reduces cracks drastically and is affordable.
    Good point Sr. Loco. We had a stress relief oven large enough to fit a 5 ton dump truck inside. It's main function we stress reliving electric motor housings, but we also used it to stress relive billets for some larger frame components and on all our jigs before we machined them. It makes all the difference in the world to the finished part.

    I think shot peening is as you say would be a great option for light walled stuff like this frame in this thread. We contemplated putting some used chromoly bike frames in the oven, but decided they would likely come out like pretzels The trick there is to relive the welds with a torch one at a time, but I never had the nerve to try it on an otherwise good frame.
    It sucks to get old

  2. #32
    Join Date
    Oct 2010
    Location
    Tucson
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    1,652
    I have been talking to Dave about building this same exact frame only for the cr500 since there's already more motor room in this frame! He is a little worried about vibration but is looking into it.. we shall see soon!

  3. #33
    Join Date
    Jun 2010
    Location
    House Springs MO
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    5,496
    I see one of these in bkm's future.

  4. #34
    Join Date
    Oct 2003
    Location
    STL
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    3,561
    interested in the cr500 motor option lol.
    TrikeFest 07,08,09,10,11,12,13,14 SandPuppie's Ride 07,08,09 Imperial Invasion 09, 13

  5. #35
    poohbee1's Avatar
    poohbee1 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Apr 2010
    Location
    terre haute indiana
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    404
    Anybody know what fork rake this is 85 ,86 or something else?

  6. #36
    Join Date
    Apr 2010
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    Indian Falls, NY
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    That's a good question. Probably 85 but no way of knowing.

  7. #37
    Join Date
    Jun 2010
    Location
    House Springs MO
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    5,496
    According to Dave, his jig was built off an 86 frame.

  8. #38
    Join Date
    Jul 2010
    Location
    O.C., Oregon
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    921
    I'm saving up for one of these. I hope to have one before summer if he's done with testing. I emailed him yesterday to ask a few questions.

    His answer is as follows- "The chassis is based from the 86 ATC and the weight depends on the version of the chassis. The Drag-Lite chassis for dunning and drag racing will end up about 13lbs lighter then stock with the MX version being about 6 lbs lighter then stock . I cant give a date as of yet when they will be available to buy because it all depends on how the testing goes. I'm building 3 test chassis so we will see how it goes. I wont stop until i have the chassis fitting and working like i want it to. - Dave

    I'm freakin stoked about this and can't wait until he's ready to put them into production!! I will have one as soon as they are ready!
    Last edited by 250rRoostmaster; 12-18-2014 at 11:15 AM.
    1985 250r-LED Performance 4mm Stroker motor
    1978 ATC70 w/ Piranha 140cc
    1972 - K1 - CT70 w/lifan 125cc
    2017 YZ 250x- Braap

    Youtube channel = http://www.youtube.com/user/ter5678/videos

  9. #39
    Join Date
    May 2010
    Location
    Ripon, Wisconsin, United States
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    861
    So Will this hold up for a 200 pound guy trail riding and private land riding this frame with inverts?
    ]1986 ATC 330R
    1985 ATC 250R vintage PSI racing ported motor
    Get your replacement ATC 250R decals and custom Big Bore #'s here http://shop.3wheelerworld.com/catego...=2&pagegroup=1

  10. #40
    Join Date
    Feb 2011
    Location
    Surprise, AZ
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    2,430
    "The chassis is based from the 86 ATC and the weight depends on the version of the chassis. The Drag-Lite chassis for dunning and drag racing will end up about 13lbs lighter then stock with the MX version being about 6 lbs lighter then stock.

    I would go with the MX version, If your at Glamis jumping dune to dune, jumping the gaps or jumping the canal, I would want the heavier frame.

  11. #41
    Join Date
    Jan 2014
    Location
    North Bend, OR
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    42
    I saw it asked but not answered about room for a 450 motor in it? By the pics I'm guessing no, but that would be awesome.
    ATC 70
    ATC 110
    Yamaha 225DX
    ATC 185s
    86 ATC 310r

  12. #42
    tecaterob is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Oct 2008
    Location
    Miami Fl
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    435
    Quote Originally Posted by socs28 View Post
    I saw it asked but not answered about room for a 450 motor in it? By the pics I'm guessing no, but that would be awesome.
    I asked the same ? I also sent him an email and didn't reply. I guess they are still testing away.
    3 86 Tecate 3
    1 87 tecate 3 (with kx 540 motor)
    1 87 tecate 4 (with 330 motor, 250r geometry)
    1 83 atc 70
    1 Kfx 50
    1 kfx 400 ( with 470 parting out bike)
    1 78 KZ 1000 ( with 1340 turbo)
    1 Aprilia SXV 550 Supermoto
    1 01 ZRX 1200 prostreet (sold)

  13. #43
    Join Date
    Jan 2014
    Location
    North Bend, OR
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    42
    Is this Dave Moore the one at www.davemooreracing.com? I need to talk to him about one of these. Is there a better way to get ahold of him?
    ATC 70
    ATC 110
    Yamaha 225DX
    ATC 185s
    86 ATC 310r

  14. #44
    Join Date
    Jul 2010
    Location
    O.C., Oregon
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    921
    I've sent him 2 emails over the past week about this with no reply. We have had a few email conversations about these frames though so I'm guessing he's just busy. He also has a phone number on his website.

    503-576-1490 Dave Moore Racing
    1985 250r-LED Performance 4mm Stroker motor
    1978 ATC70 w/ Piranha 140cc
    1972 - K1 - CT70 w/lifan 125cc
    2017 YZ 250x- Braap

    Youtube channel = http://www.youtube.com/user/ter5678/videos

  15. #45
    Billy Golightly's Avatar
    Billy Golightly is offline Always finding new and exciting ways to not give a hoot in hell Catch me if you can
    Join Date
    Sep 2002
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    Live Oak, FL
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    Blog Entries
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    He is still working on it. There are a few of us already on the unofficial waiting list (He wont take deposits and has said its done when its done on this first one) so just keep checking in on it is my suggestion

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