Join Date: Oct 2016
Location: Vancouver, BC, Canada
Reading through the OP's posts, I think he clarifies a bit - and he's trying to make his point.
1) he owns a 2018 V-Strom 1000
2) it had rained for six straight days. He couldn't ride so he kept his bike inside.
3) on the seventh day (oh dear...) the skies parted, and it was clear and 17C / 62.6 F. While he didn't specify the unit of measurement, I take it from the fact that his area "rarely goes below freezing" that it also rarely gets down to -8C / 17F, and that he wouldn't ride in that amount of cold.
4) He went for a ride, and after the ride inspected his bike, and noticed the rust.
I think there is a rush to assume that he rode in the dead of winter - I believe considering he contacted Suzuki Germany and Greece that he likely lives in Europe, and from the text I'm going to guess he lives in Greece. Suzuki Motorad may have been the first address he found to reach out to on social media, who knows.
All of that said, I'm a terrible mechanic and I have no suggestions to whether the issue happened as a result of road salt or not. He has a fair point - a 250km / 155 mile ride should not beat the bike like that. I would think that the 6 days of rain would have washed the salt / de-icer away. Perhaps he road into the mountains, where they had re-applied. And perhaps it is rare enough wherever he lives that there are generally signs/warnings when the salt/melter is applied, and there were none.
I don't know. I know that there are many many times that I have not washed my bike off after a ride. If it was 17 / 63 degrees, sunny, and dry, I wouldn't think about it - and haven't thought about it - many times. I also don't know that my discussion adds anything, except to say that lets remember not everyone is in the deepest darkest depths of winter at this time of the year.
2011 Wee-strom and loving it.