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Setting Wheel Circumference on cycle computer.(7 posts)

Setting Wheel Circumference on cycle computer.pedalpete
May 23, 2003 3:15 PM
I've got a sigma targa, and I've had to replace the battery.

I've been trying to find out how to reset the circumference, but the manual on-line doesn't say how, and I can't remember how I did it originally.
I've been pressing button's randomly to no avail.

Does anybody know how to do this?

Hopefully it's the same for all sigma's. If you have any ideas, i'd be willing to try them.
re: Setting Wheel Circumference on cycle computer.ukiahb
May 23, 2003 4:48 PM
I'm not sure which screen you need to be at ...maybe total mileage?...but there is a small button on the back of the computer that if held down for a few seconds will put it into reset mode....then the buttons on the front allow you to jump between fields and increment the settings. I agree that the pictoral/multilingual Sigma manual is not so good...
re: Setting Wheel Circumference on cycle computer.Juanmoretime
May 24, 2003 12:52 AM
I don't mean to bash Sigma but they suck. I had a Sigma 1400 and it was the crappiest computer I have ever owned. I went back to Cateye. I had a Cateye Mity 3 for almost 5 years on one of my bikes and it worked flawlessly the entire time, original battery the whole time. My Sigma would only go about six months on a battery. The only reason I replaced my Cateye was that I broke the locking tab off the mount and it was less expensive to buy a whole new computer than to buy the mount.
I've had the opposite experience...pedalpete
May 24, 2003 10:38 AM
I've had issues with Cateye and Vetta connections coming loose, and the computer not reading anything.
I think the Sigma's are really well build. Stronger connections, consistent computer.
I've had mine for 3-4 years (I can't remember exactly when I bought it), and it has outlasted my frame on one battery.

The manuals such, but I'd never go back to another computer.
I've had the opposite experience...ukiahb
May 24, 2003 4:09 PM
I think the different models may perform differently, the BC1400 uses two batteries, while the BC800 only uses one. I've also had complete reliability from my BC800 and am totally sold on Sigma's....used Avocets for many years, but had lots of trouble with them.
Agree with JMT4bykn
May 25, 2003 4:41 AM
I just switched back to Cateye Mity3 after a couple years with a Sigma. Easier to use and setup. The Sigma tended to be more finnicky to set up the sensor/magnet. I do miss the max speed function, but without hills here I never used it that much anyway.
Try thislorenmb
May 26, 2003 8:17 PM
http://www.sigmasport.com/media/produkte/bikecomputer/alteanleitungen/pdf/anleitung_targa_00.pdf