Petrus
Well-known member
- Joined
- Jul 18, 2025
- Messages
- 727
- Location
- Vva. del Rosario - Málaga - España
- Bike
- R18, Nimbus Type C sidecar, Vespas
- Discussion starter
- #181
and now for something completely different - Monty Python
I think I have solved my question about why the bike has caught me out twice now, toppling over at slow/no speed. I find it disconcerting, unsettling as it is somehow different from over half a century of experiences. It is different from a heavy bike simply gradually getting ´heavier´ as it is leaning over. I needed to put my finger on it; just hád to figure it out.
It occurs with the steering turned and the bike leaning inwards. Imo it is the weight of the cilinder heads increasingly upsetting the balance. The inside one moving further away from the tire patch axis, the outside one towards it and there you go.
The cilinder weights change from balancing each other out to an increasing overturning moment. I think this unexpected addítional weight transfer is the crux.
I think I have solved my question about why the bike has caught me out twice now, toppling over at slow/no speed. I find it disconcerting, unsettling as it is somehow different from over half a century of experiences. It is different from a heavy bike simply gradually getting ´heavier´ as it is leaning over. I needed to put my finger on it; just hád to figure it out.
It occurs with the steering turned and the bike leaning inwards. Imo it is the weight of the cilinder heads increasingly upsetting the balance. The inside one moving further away from the tire patch axis, the outside one towards it and there you go.
The cilinder weights change from balancing each other out to an increasing overturning moment. I think this unexpected addítional weight transfer is the crux.
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