kenco
XS650 Enthusiast
Has anyone fitted a digital speedo to ther bike, Ive got the pick up sensor to mount on the fork leg but where is best to mount the sensor on the wheel itself, Any one got any ideas ?
K
K
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Gidital speedo
- Thread starter kenco
- Start date
I sank a hole for the magnet in the head of a sprocket bolt and screwed down the pickup with the endcap bolt on the swingarm.
pyrocentric
XS650 Addict
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I picked up my magnets from radio shack, tiny neodynium discs. I just stuck it to the outer edge of the brake rotor. No need for glue, that sucker won't move. I attached the sensor to the right fork just above the brake caliper with two zip ties. Been running that way for a year now. I'll try to get a photo.
kenco
XS650 Enthusiast
Thats a good idea, there are some on ebay. I would apprecate it if you could send me some pics. Thanks. Ken
pyrocentric
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Mine is just a $10 bicycle speedo I picked up from walmart, but it works fine to 99mph. The sensor uses a reed switch so it may fail in time. I have an extra in my saddlebag. If you use this model, be sure you mount the sensor as I did, NOT as the instructions say. After dismantling one it's clear they didn't know the best position for the reed switch.
There is a slight delay in the readings, so it's only accurate when you're cruising. The only thing it's missing is a backlit display. The stock speedo checked about 5mph too fast at 60mph.
kenco
XS650 Enthusiast
Blimey that was quick. I got a speedo from china which was the same as ones from acewell. the sensor is a hall effect, but i think it works on the same principal. Did you work out the wheel circumfrance from the diameter of the brake disc or or do you still do it to complete wheel size.
pyrocentric
XS650 Addict
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You want the circumference of the wheel, the distance around the middle of the tire. I made a chalk mark on the pavement and wheel and rode the bike across my parking lot through 5 complete rotations...about 30 feet. I measured the distance and divided by 5. Or you could just roll one rotation and measure with a yard stick. Whatever distance you get will probably need to be converted to millimeters. Use google..."convert 40 inches to millimeters"
Where you mount it on the wheel doesn't matter, one rotation is one rotation. Since it won't stick to the aluminum rim without glue, I just put it on the steel disc.
You could epoxy the sensor in place and hide the wire if you want a neat job. I was in a hurry.
Where you mount it on the wheel doesn't matter, one rotation is one rotation. Since it won't stick to the aluminum rim without glue, I just put it on the steel disc.
You could epoxy the sensor in place and hide the wire if you want a neat job. I was in a hurry.
