KCvale
In memory of KCvale 1959 - 2019
Just to start with your original post statement along the lines of it being suicidal to ride any MB without discs period...I will agree that the hill you have shown is a nice looking hill, but does it decend for 6 kilometers (3.7 miles).
I am in complete agreement that a motorized bike should not ever be ridden without a front and rear brake and won't even let a repair out without them but come on, even a coaster with a front C is good enough for most dry flat conditions.
Sure I prefer Dual V's and they are fine on most small short grades even a little wet but you seem to be basing this 'you are suicidal if you don't use discs' mantra on a hill you have to go down that bike riders won't coast down motor or not.This is also the precise reason why people who cycle up the mountain (as depicted by the results from my trip down it) only travel up the road, but take their bicycle down the hill on their car
Sure a motor adds 20 pounds or so but heck, just hold the kill button in and it acts as third brake on way down and I bet it decent slower than the bike with no motor!
My point is if you live in a frigg'n rain forest with crappy roads and 3+ mile long steep hills your brake needs are different than a guy like me living in the relatively flat and dry desert Southwest.
Here, dual V's are the best option for cost and ease of replacement and just having at least 2 brakes is pretty much good enough so just consider that before you continue to expound to the world that EVERY motorized bike on the planet is a death machine regardless of where it is operated without $500 worth of new brakes OK?
It really does just make you silly bud.
Thanks ;-}