Endless Sphere

Right on. Thanks, guys!

Hey guys, ballpark question here: If I were to hook up a bicycle crankset to a generator, and connect the generator directly to a hub motor such that human pedaling would (almost) directly power the hub, what kind of efficiency loss am I looking at? I realize that I would be paying an efficiency pen...

Dude, I work in software. Solutions...

Solutions To Imagined Problems You Don't Really Have

You touched a nerve with me on this one. Drives me up the wall.

Hey guys, I've just recently finished my second bamboo bike. This one is the world's first "fat bike" made of bamboo - like a Surly Pugsley if you're familiar with snow / sand biking. Check it: http://dillerdesign.com/random/bike/fat_bamboo_v1/beauty_and_the_beast.jpg Here's a very terse b...

Been a while since I've visited E-S, thought I'd take a peek around again... This thread caught my eye, since I live in MN. DUDE. Pogies. Get some @$*#ing pogies. http://barmitts.com/ I can wear regular summer full finger cycling gloves down to about +10F ... colder than that, you'll need some regul...

I should have clarified that this would be for a human power only bike, and I'm posting here for the expertise available on this forum.

I plan on making an electric fat tire bike, but not this one.

I've run some DC-DC converters on my road e-bike, worked really well.

The studs are from a French company called UgiGrip. They're 11mm long. I wish I could have gotten my hands on some 10mm length studs instead. Basically you can get tungsten tipped studs in the US, but they're expensive, something like $1 per stud! These, I got off Ebay, 1,000 count for $42. While th...

Just sharing some pics of some carbide tipped studs that I added to my Surly Larry fat tires:
http://dillerdesign.com/random/bike/stu ... rry_tires/

Hey guys! Been a while since I've posted here. I have a problem that is unique to this forum, but not all that unique in general. I wish to use a low drag generator hub like the very nice Shmidt SON hubs , but I can't. Those hubs have an O.L.D. of 100mm, very typical of a fork dropout. The bike I'm ...

StudEbiker wrote:Not only do I get to do my crazy paper boy impersonation from "Better Off Dead"...

Hehe. TWO DOLLARS!!

So far so good.

I haven't posted here in a while, because I haven't e-biked in a while, been too busy off roading with my new-used Surly Pugsley (which I might electrify later this winter) . I must say getting back on an e-bike after having been without gave me the EV grin all over again :D It's fall, which means c...

Fedex, UPS, and USPS all tell me that my lame civilian self can't ship a battery though them. What gives? How does one sell and ship a used e-bike battery?

The second car that actually hit the dude, was very very likely having his view of the oncoming bike blocked by the car in front. Something to remember. If you take the lane to cross at a big light, most likely you are behind a car, and look like a space in the traffic to the cars across the inters...

So is this something other than a Gruber Assist drive?

Having experience with both Power Grips and clipless pedals (I call them click-in pedals), I will say this: Power Grips are nice because they're cheap, simple, don't require special shoes, and keep your foot from falling off while biking off road. You can pull up on them if they're fit snugly to a g...

Ah, okay. Yeah, I've fluctuated up to seven pounds when going from very hydrated to very dehydrated.

Did you hook this light into your main battery pack, or are you running it off of the small rechargables? I actually sold the unit to a friend, I was running off the little rechargeable pack they come with. I've since moved onto a pair of the older model, the 900 lumen (though it's more like 700), ...

I've always loved the Surly Pugsley but wanted front suspension. Now that "29er" forks... The folks at the mtbr Fat Bikes sub forum have referred to this fork repeatedly: http://www.universalcycles.com/shopping/product_details.php?id=3531 Apparently if you reduce the travel sufficiently, ...

Here's another perspective of the bike, those tires are WIDE, can't wait.

The little cutie isn't going to have enough power to get you thru the snow, except at near walking speeds, which may not be a bad idea in the snow and ice. Right. I wish I had two throttle modes. One "normal" and one "tractor". There are some modes of ice that are dangerous even...

jondoh wrote:how many volts? What is the wattage of your controller?

36V Headway pack, 22A controller, so about 800W peak.

At its top speed - 16mph / flat ground / no wind - it consumes 200 to 250W.

wasp wrote:i have lost 12 pounds in 2 weeks now that i am pedaling lol

Are you serious?! That sounds unhealthy. If you're not getting sick, then nice going, but damn...

This image should work (credit to this guy's blog):

I ride on a single speed Cute 128 rear hub with an Infineon controller. It tops out at 16 mph and I worry about driving it hard up hills (and, I wish it had more torque for more serious hill climbing ability). I want to build another e-bike. This will be a snow e-bike, I want it trail worthy in Nove...

lester12483 wrote:With my vpower 36v 20ah battery. I got 60 miles distance going about 14mph steady. Im 210 lbs.

No pedaling?