Grantmac
10 kW
Its about how nobody needs to ride anything except steel frames road bikes from the 90s, if that doesn't work where you ride then you aren't a proper bicyclist anyways and are just playing around.
speedyebikenoob said:Jeez um, I have no idea what this thread is about anymore
serious_sam said:You've been on a roll up to this point. But this comment is pure bullshit. Get down off your high horse.
Chalo said:Guys talking about fad stuff like it's necessary.
Ah, I see.fatty said:I worked as a tech, so I think I'm entitled to share my opinion on it. Tech jobs didn't (and don't, to my knowledge) cover health insurance and match retirement contributions. The only way to make it is to open your own shop.
Chalo said:After a handful of tech startups, and being employee #5 at one of the high profile private space programs you have heard of, I decided I was retired. So I retired to what I had been doing for a long time at my own expense... making and fixing bikes.
I had the new richest man in the world introduced to me personally by the previous richest man in the world, in my machine shop.
What I do now is of more lasting value.
fatty said:It's fortunate to have accomplished colleagues on this forum, but makes your dismissal of modern tech all the more inexplicable.
Chalo said:It's not modern. Most of it's just mundane motor vehicle tech fetishistically misappropriated for bikes.
fatty said:And while you may regard the trickledown of tech from motorcycle to mountain bikes to road bikes as unnecessary "fad stuff," this isn't a bike forum. You're posting on a forum dedicated to turning bicycles into.. light electric motorcycles. So even though I ride rim brakes and bolt-on axles, I regard hydraulic discs and thru-axles as quite relevant and desirable, as should everyone else pushing into light e-moto territory. Everyone that values safety, at least.
MadRhino said:Some just can’t figure out what it is to brake a bike from 60 mph in emergency situation.
donn said:Or is it a forum where I often see the regulars trying to talk some sense into people who drop in with questions about using a bicycle as a platform for a motorcycle? The only official documentation of what it's dedicated to, is "General Discussion about electric bicycles."
fatty said:So if the frame is strong enough, the safety concerns become axles (thru-axles) and wheels (Boost flange spacing), braking consistently from greater speed (hydraulic discs), and lights to see and be seen. Drivetrain reliability and battery protection are tertiary safety concerns.
Exactly.donn said:I don't know.
Grantmac said:Even at 30mph you may need proper brakes if the terrain you are on is steep enough. I know I'm rarely faster than 20-25mph where I ride but I'm regularly running a 9" disc setup to the point where it's too hot to touch.
donn said:For braking at motor vehicle speeds, would you not be concerned about bicycle tires? Breaking loose is certainly a concern for motorcyclists, with much better tires than could be installed on an ordinary bicycle. Would you worry about "endo" front wheel lockups? Would you expect bicycle riders to wear armor that can hold up to high speed pavement surfing?
donn said:I don't know. I mean sure, there's bound to be an element that does this sort of thing, and they have a lot of fun here on the sphere, but as any kind of standard for what electric bicycles are about, I can see why some people might dismiss it.
Chalo said:Even a road caliper brake can stand a bike on its front wheel. There is no more braking to be had after that.
If your brake rotor were 500 to 900g of aluminum, measuring 622mm in diameter, then it wouldn't be too hot to touch at those times.
fatty said:Chalo said:Even a road caliper brake can stand a bike on its front wheel. There is no more braking to be had after that.
If your brake rotor were 500 to 900g of aluminum, measuring 622mm in diameter, then it wouldn't be too hot to touch at those times.
This is nonsensically, dangerously wrong.
Ability to endo in a single max braking event on flat ground wasn't the question. He specifically stated downhill, where rim-brake surfaces got hot enough to first fade, then soften, and finally fail catastrophically.
You're either patently ignorant of disciplines outside 1980s low-speed casual street, or deliberately trolling.
donn said:MadRhino said:Some just can’t figure out what it is to brake a bike from 60 mph in emergency situation.
Anyone who needs to worry about braking from 60 MPH, needs to be looking beyond bicycle technology (including apparel.)
MadRhino said:Only here on ES we are well over a hundred to beat that speed building exclusively with bicycle components.
donn said:MadRhino said:Only here on ES we are well over a hundred to beat that speed building exclusively with bicycle components.
Over a hundred! Holy mackerel! That must be just about everyone there is!