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Technical Is there a perfect chop (height) for a roadster windshield?

Discussion in 'Traditional Hot Rods' started by jugheadjones, Nov 26, 2016.

  1. jugheadjones
    Joined: Jun 6, 2011
    Posts: 155


    Hi all,

    I'm about to chop my Model A windshield and I'm wondering if there's a sweat spot or a thread on how much to chop a roadster windshield?

  2. desotot
    Joined: Jan 29, 2008
    Posts: 1,747


    Probably wouldn't hurt to put a seat in the car that you can live with, set the car on the desired rake, then sit in the car and figure out how much you can lose without any part of your head sticking above the windshield frame. Unless you like taking out bugs with your forehead.
  3. Blue One
    Joined: Feb 6, 2010
    Posts: 9,411

    Blue One
    from Alberta

    I'm going to say that your head should not be above the top of the windshield.
    That's important for protection from bugs etc and also when you decide to put a top on.
    A roadster is nice open but the top is nice at times too.
    birdog likes this.
  4. BamaMav
    Joined: Jun 19, 2011
    Posts: 2,767

    from Berry, AL

    Take a side view pic, print it out, then cut the paper and see how it looks. Then do as suggested above, check it against your seating position.
    Doing it on a pic first will help you see if it looks right or not where you want the height set.
    19Eddy30 likes this.
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  5. clem
    Joined: Dec 20, 2006
    Posts: 2,149


  6. clem
    Joined: Dec 20, 2006
    Posts: 2,149


    Depends on the style of the car,...... 2" - 4"
  7. jugheadjones
    Joined: Jun 6, 2011
    Posts: 155


    Thanks guys. Some useful information.

    I'm actually running sans screen at the moment so I"m not too worried about bugs etc. To be honest is more about a screen that'll suit the car vs practicality. Silly to some I know. Here's some pics of the car.

    Screen Shot 2016-11-27 at 7.24.10 pm.png Screen Shot 2016-11-27 at 7.23.46 pm.png
    continentaljohn and dwollam like this.
  8. twenty8tudor
    Joined: Oct 5, 2010
    Posts: 795

    from Ohio

    I chopped mine down about 2 3/4"-3" i threw together a thin seat and I really like it.. Its easy to see out of..

    Using the stock style top I'm 5' 10" and have a lot of head room..

    Mine is the grey one.. Green one is is 2" I believe.. It's just boughten windshield post and frame from Brookville


    Sent from my iPhone using The H.A.M.B. mobile app
    Jet96 and dwollam like this.
  9. 2935ford
    Joined: Jan 6, 2006
    Posts: 2,970


    I've been vacillating back and forth about chop - no chop on my roadster.

    I really like the look of the chop but I do not want my head to then become the windshield.
    I'm also cheap and do not want to get into the expense of a new top for the chopped windshield.
    So maybe have two windshields.......a chop with my top off and the stock windshield when the top goes on and up!

    If I do decide to, 2" seems like the magic number for me.
    gas pumper likes this.
  10. Frank Carey
    Joined: Oct 15, 2009
    Posts: 438

    Frank Carey

    If your first concern is the esthetic - how it will look - then figure that out first and then place seat, steering, and pedals accordingly. Deciding what "looks best" is, of course, subjective but here's my $.02:
    Look at a 5-window coupe and figure out how much chop would make the side quarter window square. I think that gets the best look on a 5-window. Chopping a roadster the same amout would do it for me.
  11. bangerbob
    Joined: Jul 2, 2014
    Posts: 100


    Not chopped--just laid back. A 2 inch chop would have been to much. ModA 531.jpg
  12. Fogger
    Joined: Aug 18, 2007
    Posts: 1,352


    Model A windshield chop is more critical than a '32. Seat comfort and height must be determined and then the windshield cut for EP1120539_JPG.jpg visibility. I chopped my '32 3" and it looks right to me. My head isn't above the frame and even with the top lowered I still have room. Caution when designing your top and bows, don't have any wood above your head you'll eventually come in contact with it an wish you didn't. Good luck!!
    Atwater Mike likes this.
  13. dwollam
    Joined: Oct 22, 2012
    Posts: 711


    Not so much any worry about your head above the windshield, but do it so your eyes are below the top of the w/s frame. It is a pain to stretch up or slump down to get around a w/s frame right in your line of site. Wind will blow up and over the windshield missing your head unless it is a really really low w/s. Ever ride a motorcycle with wind shield? I always look over them, not through them.

    birdog likes this.
  14. jet36
    Joined: Aug 23, 2012
    Posts: 5


    The size of a Dollar bill. 20160812_163855.jpg
    continentaljohn, Jet96 and birdog like this.
  15. My wife saved her money and for Christmas bought herself this windshield for her '32. The girl's got good eyes for details.
    Perfect in my eyes too.[​IMG]

    Sent from my iPad using The H.A.M.B. mobile app
  16. mike bowling
    Joined: Jan 1, 2013
    Posts: 3,421

    mike bowling

    My "old" roadster ( sold) stock height and 4" chopped WS. I loved the way the lowered one looked, but the seat needed to be dropped too.
    I mocked up the chopped one with 3/4" aluminum angle iron to see how it looked

    Attached Files:

  17. 2 1/2" with about 2" off the seat bottom.

  18. jugheadjones
    Joined: Jun 6, 2011
    Posts: 155


    This is great. Thanks guys!

    I think I'm with you
  19. Smokin Joe
    Joined: Mar 19, 2002
    Posts: 3,773

    Smokin Joe

    Biggest thing for me is making sure you're not looking at the top windshield frame when you are trying to look down the road. Function first, looks second if you actually drive your car instead of trailering it to events. Nothing like pulling into a Hotel hundreds of miles from home with a sore neck and back from scrunching down to see under the windshield frame. As for bugs, they usually get thrown up a bit as they pass in the windstream over your windshield. Most of them will clear your head.
    Last edited: Nov 29, 2016
    robracer1 likes this.
  20. Love the visor you incorporated. Very unique.

    Sent from my iPad using The H.A.M.B. mobile app
  21. Jet96
    Joined: Dec 24, 2012
    Posts: 832

    from WY

    Donut-not exactly trad. but very clean and unobtrusive. Well done!
  22. Jet96
    Joined: Dec 24, 2012
    Posts: 832

    from WY

    IMG_3022.jpg IMG_3022.jpg 2-1/2" chop, leaned back til it looked right. Seat's a lot lower than stock so I look through it fine.
    Last edited: Nov 29, 2016
  23. m.ralph
    Joined: Nov 6, 2009
    Posts: 425


    On my 32 Roadster, the windshield was chopped 3 inches. Looks good and worked out great. Had the seat lowered, and my vision was in the center of the windshield.

  24. 28TUDOR
    Joined: Jan 25, 2007
    Posts: 419


    When your hat blows off, you've chopped a little too much.
  25. 4 inches and laid back a fe P2220223.JPG w degrees Seat is on the floor.
  26. bct
    Joined: Apr 4, 2005
    Posts: 2,954



    2" chop with seat frame 2" off the floor for adjusters
  27. sloppy jalopies
    Joined: Jun 29, 2015
    Posts: 2,744

    sloppy jalopies

    Might have missed it's post,
    But a deluxe '30 '31 roadster's windshield is chopped over an inch compared to a standard roadster's W/S from the factory...
    Got a pair of deluxe stantions today at the Topsham, Me. swap meet... $75 pr.... and a couple of new 16" inner tubes for a fin each...
    Neat how a frugal tiquer cut and threaded a mirror's shaft and screwed it into the stantion ... DSCN0569.JPG
  28. continentaljohn
    Joined: Jul 24, 2002
    Posts: 4,063


    Mine is 3 inch chop with package tray removed and seat all the way back , I think what gives it a wicked look is the posts leaned back along with the chop.

    Attached Files:

  29. gdaddy
    Joined: Mar 6, 2010
    Posts: 172

    from nw fl.

    might need to check legality , depending where you live .

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