Whizzer speedometer and drum brake

Discussion in 'Whizzer Motorized Bicycles' started by Traveler, Jun 18, 2010.

  1. Traveler

    Traveler Member

    I have a Whizzer speedometer that uses a cable to a device that attaches over the axle and on the spokes. My problem is I recently replaced the front wheel with a new wheel that came with a Sturmey Archer drume brake. Is there any way I can still use the speedometer? Thanks for any advice.
     

  2. MaxGlide

    MaxGlide Member

    I'm in the same boat

    I'm such a dummy, i just put a SA xf-d on my Whizzer too and now what do I do with the speedo?!

    Wayne
     
  3. Traveler

    Traveler Member

    If I have to choose between the drum brake and the speedometer, I'll keep the drum brake. I've heard a speedometer is required to license. As a last result, I'll mount my Droid phone with the GPS speedo app to get it licensed. Old technology meets new.
     
  4. Speedo Drive

    Hi Guys, that speedo drive is held on by the inner axle nut. Remove nut, slide off speedo drive, and re-install on the Sturmey.......OK?
     
  5. Traveler

    Traveler Member

    I am assuming the Sturmey brake arm and the speedo drive both go on the left side. If not, let me know. On the left side, the brake drum is too large for the speedo drive to engage the spokes, and there is that pesky brake arm getting in the way. It might work on the right side, but I am believing the speedo would not work that way, and there is still the problem of the speedo drive engaging something to make it turn.. If not, again please let me know. It's been 50 years since I have had a speedo like that.
     
  6. MaxGlide

    MaxGlide Member

    Thanks Motorbikemike

    Knee jerk reaction there. I'll look at how the gear interfaces with the hub/spokes when times comes. Just going to start putting the whole bike back together. I'll let you know Traveller if it works out.

    Wayne
     
  7. Traveler

    Traveler Member

    OK Wayne. Thanks.
    Jerry
     
  8. Brake reaction arm vs speedo drive

    Hi guys, well I have not used the XFD yet, but in most cases the reaction arm (pork chop) goes on the left hand side of the bike seen from where you are sitting on the bike.

    Most of the time, the Whizzer speedo drives were mounted on the right hand side (again, as seen from sitting on the bike).

    In the case that the little tabs do not go in-between the spokes, ANY method of being sure that the arm with opposing tabs spoins with the wheel, so long as it does not "load" too much pressure onto the drive, will work.

    I have used the Whizzer speedo drives on other applications before.

    Let us know how you make out.

    Mike
     
  9. Traveler

    Traveler Member

    Mike,

    If the speedo drive goes on the right side, that is good news. I can probably make that work. The XFD hub has some openings on the right side that would probably work. I took some measuremants of the distance between the two tabs on the drive and the openings on the XFD hub on the right side. I measured aroud 3 1/4 on the drive, and it looks like it will fit the hub on the right side of the bike. It may requre bending the tabs slightly, but it should work. Thanks.

    Jerry
     
  10. whizzer48

    whizzer48 Member

    I would say it will never work if it a cable drive. It has to be on the left side setting on the bike. If you put it on the right side the speedometer will run backward.


    If I am right is buy a digital speedo that is trip by a magnet. It don't care what side it the sensor is place. When setting up use the 26" tire setup. Now you use the gps to adjust the speedometer to match the speed.
     
  11. MaxGlide

    MaxGlide Member

    Whizzer48, that makes sense.

    Would one be able to mount the the SA brake on the left side then the speedo on the right side?
     
  12. Traveler

    Traveler Member

    Attached is a photo from a Schwinn forum of a 1948 Whizzer with the drive on the right side.

    Jerry
     

    Attached Files:

  13. SPJ

    SPJ New Member

    Hi Traveler,take a look at the photo of the "Worksman" front wheel and hub in my album ,the modern "Whizzer" speedo drive is manufactured to be mounted on the right side of the bike as seen when sitting on the bike. The drive unit tabs fit into pockets that were cast into the hub . I have seen other speedo drive units mounted on the left. I think it comes down to the speedo unit rotation requirement (clockwise or counter clockwise),that will determine witch side the cable drive unite must be mounted.

    Steve
     
  14. Traveler

    Traveler Member

    Thanks Steve. I did see the photo of your bike. My speedo is Whizzer and has a plastic case, so I am assuming it is a later version. It's pretty much like the one I had 50 years ago, except cheaply made. I think yours is nicer though and not the same according to your photo. I'll know when the headset bearings arrive in the mail. I have the front suspension partly torn down right now.

    Jerry
     
  15. SPJ

    SPJ New Member

    Hi Jerry, Just a bit of info, Whizzer USA sells two speedos on their webb site, one in a black plastic case, and one in a chrome plated metal case. I have one of each, they both use the same drive gear on the wheel and would be mounted on the right side as viewed when sitting on the bike. I had purchased the black plastic one with the intent to use it but the chrome one became available for sale by a fellow list member. I liked the look of the chrome case a bit better and decided to use it instead.
    Steve
     
  16. Traveler

    Traveler Member

    Thanks Steve. I'll try it out as soon as I get the headset bearings replaced. I'm still trying to find the right size.
     
  17. MaxGlide

    MaxGlide Member

    it works....

    Had a look at my XF-D and the two speedometers I have, a JC Higgins and a generic one.

    The XF-D I have is designed so the lever is on the left side of the fork as one looks down from a riding position. The speedo is designed to go on the right side, has an arm long enough to be tripped by the rotating hub of the XF-D and the direction it turns makes both speedometers function properly.

    No worries from my experience.

    Wayne
     
    Last edited: Jun 25, 2010
  18. Quenton Guenther

    Quenton Guenther Motored Bikes Sponsor

    Hi,

    You can purchase a drive assembly that will run on either side of the hub.

    The assembly has a double drive outlet to allow it to operate on either side of the hub.

    I use it on all my vintage Whizzers and it work correctly with either a Schwinn brake, a Strumey Archer hub, or just the bendix hub.

    Have fun,
     
  19. whizzer48

    whizzer48 Member

    Last edited: Jun 25, 2010
  20. Traveler

    Traveler Member

    Now I find that I can't remove the inner axle (inside the fork) nut on the right side of the Sturmey Archer hub in order to attach the speedo drive. It won't budge.
     
    Last edited: Jul 2, 2010
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