DT400 to Supermoto 400 build-street legal

Discussion in '2 smokers' started by Stealthy1, Feb 25, 2013.

  1. Stealthy1

    Stealthy1 Adventurer

    Joined:
    Jul 27, 2012
    Oddometer:
    31
    Location:
    North Central WI
    I have a 1978 DT400 that I really enjoy riding around town and on backroads, the down fall is it has knobbies front and rear, so thought about what I could do to make this a fun get to work bike. Here is the bike I started with.
    [​IMG]
    My goal was to create a vintage super moto, street legal, out of the DT400 to be known as SM400. Part of the project was to use bolt on parts so I can easily return it to the stock configuration. I bought a set of TW200 forks, along with a front rim with a brake hub. I also have a parts DT400 so had extra rims and parts from that. I laced the rear rim from the DT400 to the front hub from the TW200, then laced the TW200 front rim to the DT400 rear hub. Tires are 18 x 4.10 Kenda trail masters, 80/20 on road off road. Front fender is an Acerbis Supermoto with a tw200 high mount bracket, Rear fender is a spare DT fender painted black.
    [​IMG]
    [​IMG]
    #1
  2. Stealthy1

    Stealthy1 Adventurer

    Joined:
    Jul 27, 2012
    Oddometer:
    31
    Location:
    North Central WI
    a couple more pics. [​IMG][​IMG]
    #2
  3. KayAitch

    KayAitch Adventurer

    Joined:
    Sep 11, 2012
    Oddometer:
    95
    I love it. :D
    #3
  4. dsilver1007

    dsilver1007 Been here awhile

    Joined:
    Jan 15, 2013
    Oddometer:
    791
    Location:
    Honea Path SC
    That thing looks killer! How does it ride?! more pics
    #4
  5. Stealthy1

    Stealthy1 Adventurer

    Joined:
    Jul 27, 2012
    Oddometer:
    31
    Location:
    North Central WI
    [​IMG][​IMG][​IMG][​IMG]
    #5
  6. dsilver1007

    dsilver1007 Been here awhile

    Joined:
    Jan 15, 2013
    Oddometer:
    791
    Location:
    Honea Path SC
    That looks fun, does it ride well on the street?
    #6
  7. Stealthy1

    Stealthy1 Adventurer

    Joined:
    Jul 27, 2012
    Oddometer:
    31
    Location:
    North Central WI
    I just finished this build so have not been able to ride it yet due to snow and salt on the roads. I will take it to FL for two weeks in April, can't wait to try it out!
    #7
  8. dtysdalx2

    dtysdalx2 PITA but useful

    Joined:
    Aug 1, 2004
    Oddometer:
    14,800
    Location:
    Moneyapolis, MN
    Sweet!

    I had a 1979 DT125 as a kid.
    #8
  9. bogieboy

    bogieboy Long timer

    Joined:
    Feb 5, 2013
    Oddometer:
    1,042
    Location:
    Clifton Springs NY
    That is pretty much what i want to do to my KE100...after i swap the 250cc piston port motor i have into the frame...hehehe talk about a hooligan bike there... Sub 200# 250 smoker...
    #9
  10. joexr

    joexr Banned

    Joined:
    Jan 4, 2011
    Oddometer:
    5,022
    I like the early anti-lock brakes.:rofl
    #10
  11. Stealthy1

    Stealthy1 Adventurer

    Joined:
    Jul 27, 2012
    Oddometer:
    31
    Location:
    North Central WI
    :roflYeah, The brakes are lacking on the DT400, how ever I have a plan for that! I am looking for a disc brake left side fork lower, a hub with disc and caliper, and the handlebar controls with master cylinder from a late model tw200. Then it will be simple to convert to disc brakes in the front, just have to find it all for the right(cheap) price!
    #11
  12. davesupreme

    davesupreme grand poobah

    Joined:
    May 1, 2011
    Oddometer:
    3,139
    Location:
    palm harbor, fla
    where ya' gonna ride in fla?....
    #12
  13. Stealthy1

    Stealthy1 Adventurer

    Joined:
    Jul 27, 2012
    Oddometer:
    31
    Location:
    North Central WI
    Will be riding in the Englewood area. April 6-18
    #13
  14. Stealthy1

    Stealthy1 Adventurer

    Joined:
    Jul 27, 2012
    Oddometer:
    31
    Location:
    North Central WI
    I have about 100 miles on the bike now, motor is super strong, handles great in the corners, much better feeling then stock configuration. I have been running it with the spark arrestor out and it definitely crackles! Of all the vintage two strokes I have done this one is the most fun to ride. I have been seriously considering an IT400 transplant motor for this bike, but it sure is fun the way it is. I am looking for a disc brake tw200 left fork lower and rim to convert next. Brakes are the weak point
    #14
  15. Sniper X

    Sniper X De Oppresso Liber

    Joined:
    Jul 18, 2006
    Oddometer:
    33,474
    Location:
    Central New Mexico, 7420ft above sea level
    Being someone into SuperMoto I have a suggestion. Next time you need tyres, get Avon Distanzias and o a bike that light, use a 110 up front,. and a 130 in the rear. It will be quicker everywhere even in accel and braking than with those oversized tyres. Looks cool for sure.
    #15
  16. Stealthy1

    Stealthy1 Adventurer

    Joined:
    Jul 27, 2012
    Oddometer:
    31
    Location:
    North Central WI
    Thanks for the suggestion. I will look into the Avon's. Are they available in 18's? I thought I would be using this bike on gravel but probably will no now as I don't want to get it full of dust!
    #16
  17. 150ron

    150ron Long timer

    Joined:
    May 4, 2012
    Oddometer:
    1,678
    Location:
    Valencia, ca
    Wow, what a beauty, what kind of top speed does it have?
    #17
  18. Stealthy1

    Stealthy1 Adventurer

    Joined:
    Jul 27, 2012
    Oddometer:
    31
    Location:
    North Central WI
    I honestly don't know! I did run it up to 80mph the other day, thought it was right around 6300 rpms, and am using 15-45 gearing if I remember correctly. I have to be carefull as the highways are 55 mph where I live. Checked on the Avons, Don't see any in 18".
    #18
  19. MacNoob

    MacNoob piney fresh

    Joined:
    Jun 2, 2010
    Oddometer:
    1,954
    Location:
    The mosquito-y Center of Canada
    I love it! I bet you have trouble keeping the front wheel on the ground....
    #19
  20. cc-rider

    cc-rider Adventurer

    Joined:
    Apr 15, 2007
    Oddometer:
    15
    Location:
    Ohio
    Sweet Bike :clap
    #20