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CicloSport computer issue(8 posts)

CicloSport computer issueMike Prince
Mar 2, 2003 8:58 AM
Hi all,

Having a problem with my CM414 Alti M computer - intermittent speed readings. Replaced all batteries, reset the computer and cleaned the mount/computer contacts. Still having intermittent speed readings.

Anyone have any other ideas? The unit is about 9 months old and has been ridden about 3500 mi. I guess I could return it to Performance and get a replacement, but I'd rather save the hassle if there's something I've missed.

Thanks in advance,
re: CicloSport computer issueTi-Boy
Mar 2, 2003 5:40 PM
No solution, but I have a similar problem with my HAC 4. Changed the battery (jeweler) and nothing works correctly. Mine is 7 months old.
wireless? distance to the pickup?laffeaux
Mar 2, 2003 10:14 PM
I have a cheaper CicloSport wireless computer. I had all kinds of problems making it work. Finally I moved the fork mount way up the fork and it works fine now. Every other computer I've used allowed the magnet and pick up to be run near the hub, the CicloSport does not.
re: wireless? distance to the pickup?Mike Prince
Mar 3, 2003 6:40 PM
It is wireless, but the issue is at the mount/computer interface. FWIW, the transmitter is installed as high up on the fork as possible, so the signal from the fork to the HB sensor is not the issue. Ciclo seems to be different in that there is a receiver in the h-bar bracket which then transmits signal to the head unit vs most I have seen which go from the fork to the head unit directly.. I think the problem is here as I can get it to work on the road by moving the head unit around on the mount. Problem is that I can't get it to remain reading without holding it in place. Basically means I have to ride one-handed.

The contacts in the mount and on the bottom of the head unit look OK (no rust) and in the workstand everything functions perfectly. As soon as I get on the road I guess the vibration affects the functioning of the unit. Thought of putting some conductive grease on the contacts, but if I have to keep doing that I'll just return it to Performance for another unit.
Mar 5, 2003 2:12 PM
Not sure how to help.

When I first installed mine, there was an intermitting problem as well. If I removed the head unit and moved it away from teh bars it started to work all the time. After raising the wheel pick-up unit to teh top of the fork the problems fixed themselves. Since you've done that already, it's tough to say what the issue might be.

Is the magnet roatating right on the pick-up line on the sending unit? The manual does not say it, but according to the mechanic at the LBS the magnet needs to go directly over the line.
Send it back.Ian
Mar 6, 2003 5:24 AM

Ciclo had an issue with some of the early models brought to the US on this unit, the contacts did not quite line up. Like you said, if you hold it in one place, it works fine, but once you let go, it stops. Send it back and get a new one. You are not going to be able to fix it or solve the problem otherwise.

Did you replace 3 batteries?Mike P
Mar 4, 2003 9:40 AM
I had a problem with mine where the display would just fade out to nothing. I replaced the batteries in the sensor and the computer but did not know about the battery in the part that mounts to the handlebar. Once I replaced the third battery everything was fine. Been on those batteries for 5 months now; no problems.

YesMike Prince
Mar 4, 2003 9:54 AM
I did, but I may replace the bracket and computer batteries again as a last resort before I send it back. Thanks.