cycle computer to eliminate the damn 85 mph speedo

[rspector]

Whats the best and most cost effective to buy, it would be nice if it was backlit? also are most of them compatible with the 19 inch wheel, and what do you attach the wheel sensor too , to ensure that it doesn't fly off

 

[mark m]

Whats the best and most cost effective to buy, it would be nice if it was backlit? also are most of them compatible with the 19 inch wheel, and what do you attach the wheel sensor too , to ensure that it doesn't fly off

One disclaimer - I have not installed mine yet, so this is from my initial efforts at setting it up and thoughts on mounting.

I bought a Sigma BC1600, it has a permanent odometer, reads to about 150mph, is backlit and cost me $20USD off E-bay. They are all compatible with your wheel, you simply measure the tire circumference and input it into the computer during setup. I am planning on epoxying an earth magnet to the wheel spokes and expect no issues with that at all. A little JB Weld will have no problem holding a 5 gram magnet in place. A bigger problem is mounting the sensor on the fork leg. There is JUST enough wire to get it onto the upper portion of the slider and then you must fabricate a spacer of some sort to get the sensor close enough to the magnet for it to work properly. I need a good 1.5 inches of spacer to get mine close enough. I have thought of using a piece of sheet metal or a piece of UHMW plastic, but have not found the time and ambition to get it done yet.


Mark

 

[scotty]

do you have a cable driven speedo??
On my 1980 Kwacker. i just found the closest year mechanical job that went over 85. is that possible in your case.

 

[bgmart450]

I installed a Sigma. No problems. Glued the rare earth magnets to the front disc inside the inner center part and epoxied the pickup to the fork. No spacer needed.

I later removed the cable tie and still no issues. I have since lost the outter set of magnets (I think due to the cover I was using) but I still pick up speed with no problems

 

[chrissinc]

You guys go more than 85 MPH?

 

[terry]

What model bike mate? Only America had that 85 Mph speedo thing, so why not just buy a new or used speedo from a Brit or European model of the same year?

You'll also be able to buy a throttle assembly with a headlight on/off switch that'll plug straight into your wiring harness! Cheers, Terry. :twisted:

 

[Anonymous]

Yes, you can find an insturment cluster from a 78,79 GS 1000e and swap the internals out and into your original cases. They fit right in. The hardest part and most delicate is opening the cases by carefully (with a small screwdriver) prying the beauty ring up a mm at a time. Works like a charm though and can be put back into place without notice.

The digital sounds like it has cool features though. 8)

 

[jhw84]

do you have a cable driven speedo??
On my 1980 Kwacker. i just found the closest year mechanical job that went over 85. is that possible in your case.

Years or brands dont matter. All that matters is that your front wheel is the same size as the donorbikes. I did that on my Honda, works like a charm.

 

[gsBert]

i have a sigma bc800 on my rattbike, works fine, epoxied a magnet to the inside of my disk holder, holds fine, and strapped the pickup on the fork with the provided rubbers. works like acharm. no problems, and good until 300 km/h. unfortunately not backlit, but i can read it by the glow of the red and blue cherries following me

you might simply want to get a dash from a canadian bike, they go upwards of 220 km/h (canadaian bikes are faster, yeah!)

 

[johnnyh750ex]

Terry - great idea. Any contacts where I can find one for my '81?
Any salvege yards nearby.
My Lockhart oil cooler came from Mick Hone cycles in I believe Melbourne, been a while so I forget. Some of my parts came from Montreal and Toronto as well. Betwee those parts and the US made aftermarket parts, is it still Japanese?

 

[terry]

Terry - great idea. Any contacts where I can find one for my '81?
Any salvege yards nearby.
My Lockhart oil cooler came from Mick Hone cycles in I believe Melbourne, been a while so I forget. Some of my parts came from Montreal and Toronto as well. Betwee those parts and the US made aftermarket parts, is it still Japanese?

G'Day Johnny, yeah, Mick Hone is here in Melbourne, I go there when I need to buy "hard to find" stuff, and am too impatient to get it on Ebay. He's good, but expensive.

I reckon if you can get a Canadian speedo like Bert suggested, you should go for it, as shipping from Oz is expensive. I think my speedo goes up to 220 Kmh, or it might be 240? I've got a GS1000S speedo for a 1979 model that goes up to 140 Mph, but I doubt it'll fit your bike? Cheers, Terry. :twisted:

 

[johnnyh750ex]

Terry - Thanx but yes, the '81 dash is different. Let Mick Hone's know the oil cooler is working great. I'll find one somewhere. Right now working on the luggage and a new front tire. Always something....