GStwin.com GS500 Message Forum

Main Area => Projects / Builds, Racing and Tech => Topic started by: bobcat on July 23, 2012, 09:04:36 PM

Title: Bicycle computer installed
Post by: bobcat on July 23, 2012, 09:04:36 PM
It all started when my gs500 doesn't have a clock - originally i was only gonna put an old digital watch around the handle bar but after goggling a bit and notice some ppl putting bike computers on their bike, i decided to give it a go as well.

I'm in Australian and 99bikes had Sigma 1009 computer instore special for A$34 http://99bikes.com.au/shop/accessories/sigma-bc-1009-sts-wireless-computer (http://99bikes.com.au/shop/accessories/sigma-bc-1009-sts-wireless-computer) Didn't see the need to get the 1609 or the wireless version coz I'm just testing at this stage. Didn't want to spend a lot yet.

installation is pretty straight forward, similar to a bicycle http://www.sigmasport.com/en/produkte/bikecomputer/topline_2009_wired/bc1009/produktvideo/temp.html (http://www.sigmasport.com/en/produkte/bikecomputer/topline_2009_wired/bc1009/produktvideo/temp.html)

the unit was mounted on the handlebar
(http://i40.servimg.com/u/f40/17/60/52/88/photo_20.jpg)

and wire down to the front brakes.  The hardest thing is the find the right place to mount the magnet.
(http://i40.servimg.com/u/f40/17/60/52/88/photo_19.jpg)

(http://i40.servimg.com/u/f40/17/60/52/88/photo_18.jpg)

I've ordered some rare earth magnet from ebay as suggested by other installer online http://www.ebay.com.au/itm/10PCS-8mm-x-1mm-Super-Strong-Round-Rare-Earth-Neodymium-Magnets-Magnet-Kid-Toy-/170855552573?pt=AU_Hardware&hash=item27c7c8d63d (http://www.ebay.com.au/itm/10PCS-8mm-x-1mm-Super-Strong-Round-Rare-Earth-Neodymium-Magnets-Magnet-Kid-Toy-/170855552573?pt=AU_Hardware&hash=item27c7c8d63d)
so when they come I'll probably epoxy the magnet onto the rotor(//)
Title: Re: Bicycle computer installed
Post by: iclrag on July 24, 2012, 02:51:40 PM
Out of curiosity, what all does this accomplish? other than the clock and looking cool
Title: Re: Bicycle computer installed
Post by: Unsane on July 24, 2012, 10:53:02 PM
... from the OP's link:

General Functions

Languages setting, 7 languages
Automatic start/stop
Battery status display receiver/ transmitter
Backup function (storage chip)
Bike Functions

Actual speed
Average speed
Maximum speed
Trip distance
Comparison of current and average speed
Total distance (Not shown while riding)
Time Functions

Riding time
Clock
Total distance (Not shown while riding)
AVERAGE SPEED

Comparison of current and average speed
LOW BATTERY INDICATOR

Timely battery change reminder
SERVICE INTERVAL

Programming the kilometres until the next service inspection by means of the UNIVERSAL FSB
INTEGRATED STORAGE CHIP

Pre-settings and total values are retained during battery change
Title: Re: Bicycle computer installed
Post by: iclrag on July 24, 2012, 11:41:16 PM
Sweet, i read through that, i was mostly curious what the OP wanted specifically out of it, maybe all of it? sounds like a cool toy
Title: Re: Bicycle computer installed
Post by: Unsane on July 25, 2012, 03:40:47 AM
I would imagine digital speedo, trip computer functions, service reminders, etc
Title: Re: Bicycle computer installed
Post by: bobcat on July 26, 2012, 11:09:47 PM
initially i was only after a clock, and was gonna just strap a digital watch on - but i only had a kiddie watch lying around at home, and the cheap $2 shop nearby don't have any cheap watches around. 

so that's why i got the cycle computer instead, cost the same as a new cheapo watch anyway

but now that i've got it installed for over a week i've discovered my speedo is out by almost 10k (which explains why the cars behind me were a bit frustrated when I stuck to the speed limit)

and it's handy to have an extra trip computer in addition to the bike one. I use the bike one to keep track of fuel usage, and the one on the bike comp for actual trip distance.
Title: Re: Bicycle computer installed
Post by: adidasguy on July 26, 2012, 11:30:32 PM
#5163

It is known that the speedometer is 10% fast. That is, you're going 10% slower than what the speedo reads. The odometer is correct. Probably many bikes are that way. If you get a speeding ticket, you can't blame Suzuki for a speedometer that read 30 when you were going 35. If the speedometer reads 30, you're going really going closer to 27. Ergo - if you go by the speedometer, you aren't speeding.
Title: Re: Bicycle computer installed
Post by: yamahonkawazuki on July 26, 2012, 11:45:24 PM
the bike speedo if magnets not in right place. i.e too close to center of wheel or too far out, throws the reading off. i have used them on my motorised bicycles. those or a gps or both