Double Vision

Discussion in 'Whizzer Motorized Bicycles' started by Quenton Guenther, Sep 3, 2007.

  1. Quenton Guenther

    Quenton Guenther Motored Bikes Sponsor

    Here are a few pictures of Roger Brophy's Double Vision Whizzer. Some are on other web sites and some are from my private files. Also included are a few photos of his collection.

    Attached Files:

    Last edited by a moderator: Sep 3, 2007

  2. retro_racer

    retro_racer Guest

    What kind of forks are on the double vision?They look like a custom set up of some type.
  3. Quenton Guenther

    Quenton Guenther Motored Bikes Sponsor

    The bottom of the forks looks very similar to the new edition Whizzer units but the rest looks custom made. I emailed Roger and asked him about them, so hopefully I will know soon, and let you know.
  4. Quenton Guenther

    Quenton Guenther Motored Bikes Sponsor

    Roger Brophy emailed me today and said the forks are from an 80's Peugeot moped, but many people told him they look like the forks on a JT1 Yamaha.
  5. Quenton Guenther

    Quenton Guenther Motored Bikes Sponsor

    After a few requests I located a few pictures of some really fast and different Whizzers, including a portion of my personal collection. Let me know if anyone wants to see the modified Whizzer NE motor or some of the parts needed to make it set records.

    Attached Files:

  6. Modified parts

    Hi Quenton, good to see you here! I would like to see the parts and how it all works, but if no-one else seems very interested it would be ok with me if you send directly to me(that way they will not know how I'm outrunning them?GRIN).

    Even tho replies here are sometimes slow (especially if it is more complex items, not things like "what bike did you screw your china-motor into"), I'm sure that those of us involved in this catagory would love to see what you've done.

    Some people may not realize, that the tricks to make one engine better, will work on other engines of the same type. They will therefore benifit.

    My new chassis are supposed to be arriving next week, with multiple improvements and I'm excited about that, and the upcoming Whiz-In.

    Lets see what you are willing to share?

    Thanks, Mike
  7. Quenton Guenther

    Quenton Guenther Motored Bikes Sponsor

    Hi Mike, I will share a few photos of heads & exhaust systems I have tested. When I get a little spare time I will pass on some information that should at least double the HP of a stock Whizzer NE motor.

    Attached Files:

  8. Power!

    Hi Quenton, and thanks for the quick reply! My Prototype, that i want to hop up should be on it's way back from AZ this next week. I have the Weber head, factory mushroom lifters, a new barrel coming ( I had to rebuild customers bike, he fried exhaust seat on NE), new stock piston, and new stock rings, somewhere I have a 06 (bigger) pipe and manifold, and will be looking for what to do to improve this one to go into the new Simpson Model 10 chassis.