As to how quickly you brake, taking out some human factors, it’s the size of the contact patch, the type of material, weight, and surface. I’m discounting the brakes, as it’s more about how they’re used rather than what they are.
In my opinion MTB,s tend to stop quicker because they’re normally heavier and have larger tyres.
Yes if you put 1” slicks on and then grease the rims they wont stop, but generally
I wasn’t going that fast, I was in the worst position, on left moving up the inside of slow moving traffic, just waiting for someone to cut across. This is the Mile End road, two lanes of traffic, with side road’s every 25 yards. I normally stick to the middle but I was approaching a crossing where theirs a bottleneck, and the left offer’s an escape route.
I spotted the truck turning right (hard to miss) plus the old Nissan sports car and I knew he’d pull over without looking so was slowing, already. The Nissan then did what I expected and cut across, I hit the brakes; I didn’t even come to halt, I didn’t need to, when clunk!
I think he either bent a rim or folded his forks. His forks were of the “blade” type and tyres very skinny.
I waited at the next set of lights but he didn’t turn up.
