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-   -   Schwinn Speedometer Question. (https://www.bikeforums.net/bicycle-mechanics/871798-schwinn-speedometer-question.html)

Daniel Sundance 02-08-13 09:28 AM

Schwinn Speedometer Question.
 
3 Attachment(s)
I removed the front rim to clean the gunk surrounding the hub and after I was done putting it all back together I test rode and the speedometer wasn't working. I'm quite sure I put it back exactly as I it was from the start, is there at certain position it has to be in? Or is it just broken now?

Thanks!
Daniel.

http://bikeforums.net/attachment.php...hmentid=298175http://bikeforums.net/attachment.php...hmentid=298176http://bikeforums.net/attachment.php...hmentid=298177

Sandiegodan 02-08-13 10:49 AM

I'm not an expert on this mounting, but doesn't the pickup device need to be inside the fork in order to pick up the rotation of the wheel?
Dan

dsbrantjr 02-08-13 10:50 AM

"I'm quite sure I put it back exactly as I it was from the start"

I'm pretty sure that you didn't. I believe that the plate you have on the outside of the fork needs to be on the inside, next to the wheel. There should be a pin which engages the wheel between the spokes which rotates along with the wheel and drives the speedometer via the cable. Hopefully you have not bent or sheared off the pin the way you have it mounted. Remove the wheel, make sure the pin is straight and put the plate onto the axle, making sure the pin goes between two spokes, then mount the assembly onto the fork, with the plate between the fork and the wheel and tighten the wheel nuts securely. If the speedometer reads backward you need to put the plate on the opposite (right) side of the wheel.

FBinNY 02-08-13 11:01 AM

+100.

The speedometer has to be inside the fork, with the driving tab engaged in the spokes so the wheel will turn it. It cannot be outside the fork since than the driving tab will be stopped in half a turn when it hits the fork blade.

BTW- The first question would have been is whether it worked before, If so, we know the unit was OK. But now you need to take it off and confirm that the driving tab didn't break off because you mounted it wrong.

HillRider 02-08-13 11:29 AM

If that speedometer is broken from the improper installation and if you aren't absolutely wedded to that type, be aware that a modern electronic cyclometer can be had for $20 or less. It will be far more accurate (if calibrated properly), give a ton of other useful information, be a lot lighter and produce much less drag.

Daniel Sundance 02-08-13 08:14 PM

Clever Clever! Thanks guys, I did indeed install it wrong!

Turbo231 02-08-13 11:22 PM


Originally Posted by HillRider (Post 15251441)
If that speedometer is broken from the improper installation and if you aren't absolutely wedded to that type, be aware that a modern electronic cyclometer can be had for $20 or less. It will be far more accurate (if calibrated properly), give a ton of other useful information, be a lot lighter and produce much less drag.

Hard to beat analog for coolness though...

http://compare.ebay.com/like/2809735...cbt=y&bigimg=y

Have 2 similar...you can't adjust them so I know they are off a bit...but how perfect do you need to get on a recreational bike? They look cool anyway.


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