Battery_Chick

Thanks Steady Spin. Safe for woman to go solo? Cellphone signal in case of difficulty?

Hi Hubbers. I'm coming down for a birthday party on the weekend of the 30th and keen to ride Karkloof on the 28th and 29th, possibly even the afternoon of the 27th (traveling down from Jhb). I don't typically ride alone, can anyone help me with the lay of the land? Are there groups I could join? People who would be willing to ride with me? I have a dual sus trail bike and fairly good skills, but not as fit as I would like. 20km rides are probably my speed

Yeah I got one with the second hand kit, it just needs batteries. I'll look into fixing that up and using it! Then I can k ow THE TRUTH!! (or something closer to it, taking into account tyre pressure, time spent in the air etc etc) 😄

I'd say yes but it's a factor to consider

No speed sensor

Well my smile is bigger... 😁

The good news is this Garmin came from a 29er! So what I'm reading now must be the accurate reading 🤣

Dang it! Maybe that's it! Hahaha!

Glad to bring a smile. Maybe one day I will remember that we made some route change and that's responsible. For now I'm putting it down to a weird confluence of data that looks consistently different!

No speed sensor, just GPS. It was a good line of thinking though

LOL, love the way you think! Unfortunately I'm not faster on the new, heavier bike yet, but I love him dearly and I will be quicker soon!

Thanks for the explanation of the sampling, I think it's probably safe to say that this is the real difference, and I'm just picking up a streak of unusual data. The good news I ride the route every week so I will keep on sampling, lol!

Now this may be due to barometric differences between the rides. I believe the devices we use often use barometric pressure to gauge elevation and changes in elevation.

Yeah I also can't see how it would change for such small changea in position. Another spanner in the works. I averaged 5 rides on the 26er and 3 rides on the 29er and I still have a 1.3% difference! At this stage I'm going to put it down to a difference in sampling or some difference in the route that I'm not consciously aware of. So strange!

OK so I have a strange observation and I wonder if anyone else has experienced something similar. The group I ride with do weekday rides following the exact same route every time. I recently upgraded from a 26 inch bike to a 29 inch bike and my ride distance, measured by a Garmin Edge 820, changed from 15.13km to 14.94km. That's 190m less and is a 1.3% difference. Now I thought it was a new downhill section that may be shorter, but looking at the map, both rides I'm comparing used the same route! Could it be possible for a Garmin mounted on the handlebars to measure a difference in how I track through corners on these new bigger wheels and could it be that big a difference? It seems so crazy yet I can't (yet?) see another explanation?? So, am I crazy or what?