I've returned to riding after a long (40 year) hiatus. I now live in the mountains of NC in the USofA. Question: Why do I have to lean much more on ascending curves compared to descending curves?
Am blessed with some super mountain roads, very steep, very tight switchbacks. When ascending, it feels like I'm leaning well past 45 degrees to get the 650DL around the corner. This is in 2d gear at fairly low speeds (20-25mph). Going downhill, I don't have to lean that much.
Just curious, why does the bike/rider combo need that much lean going uphill?
I know that the suspension is loaded very differently in each case. Going uphill, at least 2 factors load the weight on the rear: 1. The front wheel is higher so the weight is naturally shifted to the rear. 2. The bike is using the engine to overcome gravity, so this shifts weight to the rear as well.
Going downhill, the opposite is true. The weight shift is to the front as the bike/rider are tilted forward and engine braking plus brake system are pushing the masses forward.
Does this suspension shift change the steering geometry that much? It must but I don't understand why. I have not seen this discussed anywhere in a book or online.
Any thoughts from you smart Stromtroopers?