Search found 51 matches

by classicalgas
Feb 13 2019 7:52pm
Forum: E-Bike General Discussion
Topic: Catrike with Grin All Axle front hub motors
Replies: 29
Views: 2821

Re: Catrike with Grin All Axle front hub motors

"Commercial tadpole trike needs more weight to the rear, it"s too front heavy without any motor. I think they are something like 70/30 from the box. Rear wheel needs all grip it can get, that increases safety. My DIY velo is 35/65." Grip isn't the limiting factor, tipping (up on two wheels) is. It's...
by classicalgas
Feb 13 2019 7:32pm
Forum: E-Bike General Discussion
Topic: E-bike Powered by Tool Batteries?
Replies: 9
Views: 446

Re: E-bike Powered by Tool Batteries?

This looks like another good reason to consider tool packs for ebikes...an easy to build, cheap (as solar charging goes) and efficient solar charge station for your tool packs..from box store parts (mostly) https://www.greenbuildermedia.com/buildingscience/power-your-jobsite-cordless-tools-with-this...
by classicalgas
Feb 03 2019 2:26pm
Forum: E-Vehicles General Discussion
Topic: The tipping point is just a few years out
Replies: 63
Views: 1385

Re: The tipping point is just a few years out

..."on-demand autonomous electric vehicles owned by fleets"...That futurist is out of touch with the real world. A cheap, older, (possibly electric) car in your driveway is going to stay more useful to most people than a self driving car have to schedule... for a looong time. The focus of tech in th...
by classicalgas
Jan 19 2019 4:51pm
Forum: E-Bike General Discussion
Topic: Sortimo electric cargo trikes
Replies: 55
Views: 2289

Re: Sortimo electric cargo trikes

"aerodynamics are no better than a TT rider on an upright (the extra wheel doesn't help)"... various charts say a TT bike and tucked rider has about 20% less drag than an upright commuter bike( even without fenders) so that trike is much cleaner than a (non race) upright already That difference tran...
by classicalgas
Jan 01 2019 11:46pm
Forum: E-Bike General Discussion
Topic: Sortimo electric cargo trikes
Replies: 55
Views: 2289

Re: Sortimo electric cargo trikes

"Until you come to a hill, or are pulling away from a stop. Then the "aero" makes you even slower."...and then you more than make it up on the next long flat or downhill where the draggy bike will hit terminal speed. "ALL" high efficiency vehicles put an emphasis on areo...even those where the test ...
by classicalgas
Dec 26 2018 9:20pm
Forum: E-Bike General Discussion
Topic: Sortimo electric cargo trikes
Replies: 55
Views: 2289

Re: Sortimo electric cargo trikes

" Velocars have been around more than 70 years now; if they were capable of becoming a quasi-mainstream transportation option, they would have done it already." Cyclecars (velocars without pedals) have been a significant percentage of road vehicles in a few times and places..usually when fuel cost w...
by classicalgas
Dec 26 2018 8:51pm
Forum: E-Vehicles General Discussion
Topic: EV efficiency - new record
Replies: 19
Views: 784

Re: EV efficiency - new record

The Sport Lotus Elise weighs 798 kg (1800 lbs)...and still has airbags and power windows, and probably AC and electric power steering, though I can't be sure. A 2018 IC Morgan trike weighs 1200 lbs, with no high tech materials used whatsoever. Just for comparison, a base model '90 Miata weighed bare...
by classicalgas
Dec 25 2018 12:26pm
Forum: E-Bike General Discussion
Topic: Sortimo electric cargo trikes
Replies: 55
Views: 2289

Re: Sortimo electric cargo trikes

"It wasn't always fun, but it was practicable. Not that different from walking around in the same conditions." The wind chill on a downhill, or a motorcycle at traffic speeds, can make 45 F feel like freezing...quite a lot different than walking. You guys did notice how that German trike is being ma...
by classicalgas
Dec 25 2018 11:54am
Forum: E-Vehicles General Discussion
Topic: EV efficiency - new record
Replies: 19
Views: 784

Re: EV efficiency - new record

OK, it's light, but if you put that much tech into a single seat or tandem velocar with electric boost, it would weigh, at most,250 lbs empty. I'd agree, the big, heavy typical passenger vehicles on the road today are stupidly wasteful. Light vehicles aren't new, we've done them long before carbon f...
by classicalgas
Dec 24 2018 10:01pm
Forum: E-Bike General Discussion
Topic: Sortimo electric cargo trikes
Replies: 55
Views: 2289

Re: Sortimo electric cargo trikes

Bikes do not offer "plenty " of weather protection. I commuted 30 miles a day in Washington state, year round, for years. Half the year it was frocking miserable. Rain, cold, rain and cold, snow and slush, traffic speed far above what I could manage, and few alternatives to mixing with traffic along...
by classicalgas
Dec 24 2018 9:46pm
Forum: E-Bike General Discussion
Topic: Sortimo electric cargo trikes
Replies: 55
Views: 2289

Re: Sortimo electric cargo trikes

"If velomobiles were viable, they'd be common. " You could say the same for electric vehicles. Most of the issue(velo scarcity) is cost, you can buy a pretty nice used car, or brand new motorcycle, for the cost of a velo.Another issue is that the typical LEO will often stop one as an unlicensed moto...
by classicalgas
Dec 24 2018 1:22am
Forum: E-Vehicles General Discussion
Topic: EV efficiency - new record
Replies: 19
Views: 784

Re: EV efficiency - new record

"Yeah.. it's a large velomobile and not a car though, so you can't really compare the two." Huh?! It's got four doors, seats four people, has no pedals, and it will hit 85 mph. Not a velomobile by any definition I'm aware of. Yes, it's light, compared to most modern cars... but not compared to "comp...
by classicalgas
Dec 24 2018 12:31am
Forum: E-Bike General Discussion
Topic: Sortimo electric cargo trikes
Replies: 55
Views: 2289

Re: Sortimo electric cargo trikes

"On the first count, why limit to 500W and use fragile aero aids, when you could use more power more easily and cheaply, and skip the aero nonsense? "...because in most parts of the US, 500-750W is the maximum allowed power before it becomes a "motor vehicle" . Also because weather protection and ae...
by classicalgas
Dec 19 2018 10:45pm
Forum: E-Bike General Discussion
Topic: Sortimo electric cargo trikes
Replies: 55
Views: 2289

Re: Sortimo electric cargo trikes

There are several good reasons that many light EV designs are trikes. 1) In most jurisdictions, four wheels makes it a car, with safety standards, licensing and registration issue most startups would like to avoid, whereas three wheels is a motorcycle or electric bike...much easier to build, license...
by classicalgas
Dec 19 2018 9:26pm
Forum: E-Bike General Discussion
Topic: eBike mod ideas
Replies: 19
Views: 902

Re: eBike mod ideas

"The thermal epoxy I'm able to get my hands on don't have good thermal conductivity. Also not for outdoor use..." Then clamp with thermal grease. Heating the casing of a hub motor enough to solder(ever tried to solder aluminum? It's not easy) much less weld, fins to it will distort it, damage magnet...
by classicalgas
Dec 15 2018 3:38pm
Forum: E-Bike General Discussion
Topic: Lines erased E-Bike / E-Scooter / E Motorcycle
Replies: 248
Views: 7040

Re: Lines erased E-Bike / E-Scooter / E Motorcycle

Mixed use bike trails (and here in Washington, all the "bike" trails not part of the pavement shared with cars, are mixed use) have so many oblivious walkers, dogs on leashes extending across the path, wheelchairs, kids barely able to control their bikes, skaters, Xcountry ski's on wheels, skateboar...
by classicalgas
Dec 15 2018 2:12pm
Forum: E-Bike General Discussion
Topic: eBike mod ideas
Replies: 19
Views: 902

Re: eBike mod ideas

So far as good looking battery bags for a cruiser, Amazon has several leather and hard case bag options for motorcycles, in the $50 range per pair.
by classicalgas
Dec 15 2018 2:07pm
Forum: E-Bike General Discussion
Topic: eBike mod ideas
Replies: 19
Views: 902

Re: eBike mod ideas

You'll have a very hard time... "soldering/brazing"... fins to an aluminum hub motor. Thermal epoxy and/or a clamping system is a much better method.
by classicalgas
Dec 15 2018 1:57pm
Forum: E-Bike General Discussion
Topic: Sortimo electric cargo trikes
Replies: 55
Views: 2289

Re: Sortimo electric cargo trikes

60 mph, 20 kw isn't an electric bike, it's a motorcycle. The comparable trike would be a Polaris Slingshot...no one seems to be unhappy with the way they accelerate or corner. No real attempt at aero either. Here, an electric bike is limited to 750 w. More is a motorcycle and requires registration a...
by classicalgas
Dec 13 2018 11:56pm
Forum: E-Bike General Discussion
Topic: Sortimo electric cargo trikes
Replies: 55
Views: 2289

Re: Sortimo electric cargo trikes

The whole "leaning trikes are a solution in search of a problem" argument is silly. Put enough aero on a two wheeler to hit 35 mph on 500 watts (on level ground) and you'll have a scary, dangerous vehicle in a gusty side wind. Put enough aero on a tadpole to hit that same 35 mph on 500 watts,and you...
by classicalgas
Dec 13 2018 1:37am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 3326
Views: 114514

Re: Wind and Solar vs Coal, Gasoline, Nuclear

" We (and our ancestors) have done so for every other mass extinction." BZZZTTT! There have been no 90%+ mass extinctions in the history of the human race, the last one was 250 million years ago. The earliest humans (genus homo) existed no more than 3 million years ago. Homo sapiens (anatomically mo...
by classicalgas
Nov 25 2018 2:08pm
Forum: Items Wanted
Topic: Ford Think Fun electric bicycle or parts
Replies: 4
Views: 296

Re: Ford Think Fun electric bicycle or parts

There's one on the Seattle Craigslist as of nov 25
by classicalgas
Nov 25 2018 1:59pm
Forum: E-Vehicles General Discussion
Topic: 1890 E-Trike patent
Replies: 2
Views: 584

Re: 1890 E-Trike patent

"Wow, they even had the sense to put the two wheels in the right place."...not only that, they'd figured out that a short wheelbase reduced the likelihood of tip over. Good thing, considering how high the center of gravity looks to be on that rig.
by classicalgas
Nov 25 2018 1:37pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 3326
Views: 114514

Re: Wind and Solar vs Coal, Gasoline, Nuclear

" ... We either ramp it down fast, or go extinct. ... You lose tremendous credibility when you make statements like this." Oh? We have a thousand climate scientists saying that global climate change is killing people right now, others pointing out that things like permafrost thaw and ice sheet melti...
by classicalgas
Nov 25 2018 2:01am
Forum: E-Vehicles General Discussion
Topic: The trend of cities banning cars
Replies: 23
Views: 1180

Re: The trend of cities banning cars

You would think that the solution to big vehicles in the central city would be easy...just jack the prices of car size parking places up until no one can afford them.