Flop is proportional to trail, according to this article:
[https://www.adventurecycling.org/default/assets/resources/20140601\_MechanicalAdvantageTrail\_Heine.pdf](https://www.adventurecycling.org/default/assets/resources/20140601_MechanicalAdvantageTrail_Heine.pdf)
Bikes that will be turned at low speed need more 'power steering.'
Hopefully the terms in the article jibe with your math.
Dec. 5, 2020, 7:18 a.m. - Ceecee
Flop is proportional to trail, according to this article: [https://www.adventurecycling.org/default/assets/resources/20140601\_MechanicalAdvantageTrail\_Heine.pdf](https://www.adventurecycling.org/default/assets/resources/20140601_MechanicalAdvantageTrail_Heine.pdf) Bikes that will be turned at low speed need more 'power steering.' Hopefully the terms in the article jibe with your math.