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Bad speedo drive gear?
#411706 11/10/2010 4:22 PM
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Has any one on here ever had any problems with their speedo drive gears going bad? I was riding last night when I noticed a grinding sound coming from my front end, I leaned forward to listen more closely and noticed my speedometer going hay wire and pegging out even though I was only going about 35 mph. I did put new tires on about a month ago and shortly after my speedometer was funky but I found the speedo cable to be loose and it was fine after tightening. Any info or suggestions would be great.

Re: Bad speedo drive gear?
Big_Evil #411707 11/10/2010 10:23 PM
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I had to replace my speedo cable once, but all parts wearout and break so its quite possible.


I have no faith in human perfectability. I think that human exertion will have no appreciable effect upon humanity. Man is now only more active - not more happy - nor more wise, than he was 6000 years ago. Edgar Allan Poe
Re: Bad speedo drive gear?
Big_Evil #411708 11/11/2010 1:00 AM
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Stickman Yogi
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Stickman Yogi
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The speedo on my '03 would go crazy (even at only 2000 km) and would peg out whenever it felt like it. In my case there was no grinding sound... simply a faulty instrument and apparently I'm not the only one. I eventually ditched the speedo for a digital one.


Live to love, love to live.
Re: Bad speedo drive gear?
Keith #411709 11/11/2010 1:04 AM
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Fe Butt
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Fe Butt
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The speedo drive at my front wheel went bad last summer. The washer with the ears that engages the wheel and drive went bad and took the drive with it when it did.Got a low mileage drive from Pinwall for $14 and been fine ever since.


I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
Re: Bad speedo drive gear?
Big_Evil #411710 11/11/2010 11:26 AM
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Obviously, be sure it's seated properly before replacing parts. If it's not seated right, the speedo will not work correctly.


Chris '03 Speedy.
Re: Bad speedo drive gear?
DunnSpeed #411711 11/11/2010 11:53 AM
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Make sure the cable is seated properly.Its easy to do but you probably over tightened the knurled connector on the back of the speedo. I had the same problem. Loosen it by 1/2 a turn and see if it gets better,then 1/2 more etc.


Bill. "I spent a lot of money on booze, birds and fast cars. The rest I just squandered." -George Best
Re: Bad speedo drive gear?
billpvegas #411712 11/12/2010 12:15 PM
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When those ears break off, the bearing can get chewed up.

Re: Bad speedo drive gear?
Lonzo #411713 11/12/2010 6:47 PM
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I took the front wheel off and everything looked good. I greased everything up and reassembled. Bill I took your advice on making sure the speedo cable wasn't over tightened, as I will admit I have a tendency to over tighten everything. So far everything seems okay and i haven't had any more issues. I did order a low miles speedo gear drive from Pinwall for $15 just in case as my bike is approaching 30k.


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