Originally Posted by
Iride01
Are you asking about actual elevation of where you currently are or the elevation gain/loss during your ride?
I know Florida is flat, but is it that flat? I go for a 25 mile ride here and I can easily rack up a 800 to 1000 feet of elevation gain and loss. Yet the tallest hill I go up is probably only 80 feet of elevation change, most just 20 feet of change.
Overall elevation gain/loss has been way off for about 2 weeks and I have no idea why. For the 7 months prior it was pretty accurate. All other functions on the Bolt still seem to be OK.
Where I live the highest point in town is 65 ft.; so yes, it's
really flat.
Originally Posted by
surak
I've had bad elevation with my Garmin 520, but not noticed it with my Bolt. Where is the elevation error coming from, throughout the ride or at certain points? Elevation is calculated by using barometric pressure. If you turn it on indoors before leaving or go between environments, put it in a pocket at some point, and such it will drift more. The altimeter port can also get clogged (this happened easily with the 520).
The error seems to be an accumulation of incorrect data over the course of the ride. My Bolt doesn't get turned on until it's outside and mounted on the bike. I also checked the altimiter port and it does not appear to be clogged.
It really isn't a big deal I guess, other than it just bothers me to have incorrect data for my rides. Elevation is not a focus and I never look at my elevation numbers because of how flat it is where I live. It only caught my attention when I traveled a couple hours north for a 100-mile event that had 3,773 ft. of climbing. At the end of the event my Bolt showed 6,049 ft. of climbing. Ever since that day the elevation readings have been wacky.