Electric Recumbent Bicycle Test
December 12, 2009 by
Filed under recumbent bicycle
Lightning Stealth recumbent bike converted to electric power (really a hybrid) hit 42 mph on its first test.
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Please do more videos about your electric bike
Drive assist for a recumbent? I don’t need to remind you that the very force keeping you upright is quite different than a standard two-wheeler. Test or not…you might have had a 42 mph road rash and broken legs.
This video was stolen from voypics
Perhaps this is the future?
I replaced the Chinese made spokes on the original wheel with new spokes, supposedly not made in China (possibly American or Swiss). I don’t know the gauge, but could check the diameter with a micrometer. It is most likely 14 gauge, but I can confirm. My front wheel is 20″ diameter and I wanted speed, not acceleration. It turned out it went too fast on 72V and a 26″ wheel. I now use 48V of LiFePO4 cells.
What gauge did you have on the broken spoke? I’m looking at the 405 to add to my recumbent, but I was opting for the front wheel to balance out the batteries in the rear. Why did you add it to the rear wheel? I’m also going for the lithium phosphate, but was thinking of staying at 36v to keep the cost down, and plus I’m too scared to ride at 42mph
Wow gotta love that. I will keep this in mind when I electrify my trike. Thanks for posting this!
The video shows the bike going 42 mph on a level street parallel to the ocean. The bike goes uphill very well. I climbed a 950 foot hill in Palos Verdes, California to an alternative energy festival about as fast as a friend made it driving his Prius. He was very surprised to see me enter at the same time as himself. The downside is that if you let this monster motor provide most of the torque then you’re going to break spokes (I broke a spoke later that day going up another hill).
now, how is it going -uphill- ?
We only need 36v to reach those speeds
To njander:
Actually, the video has a slide that answers your question. It’s a 72 volt lithium ion polymer battery. More specifically, it’s lithium manganese oxide chemistry. I have since changed to lithium iron phosphate, which, although it has lower energy density, it has higher power, longer life and is safer.
How many volts are you running? What kind of battery?
ya. thanks. but thats what I wanted it for, it exists for some one.
The 405 by Crystalyte is a high speed, low torque model. Don’t try any hills with it!
I almost wish i bought the 405…
… i forgot to ask – is your recumbent faster than a standard bike ?
… that is funny …
I was pedaling and using the motor at the same time. I have since discovered that at my top speed, the pedals aren’t doing anything but slowing me down, due to making me weave back and forth a little. I’ve gone a couple miles per hour faster without pedaling. However, I definitely have a stealthy quiet electric bike and want those young cyclists I pass to think I’m Lance Armstrong’s grandpa. For that reason I pedal furiously as I pass them at double their speed!
hi nxt ! thanks for the input – in this video you are pedalling and running the electric motor at the same time ? i ran into a guy walking from conneticut to taos nm with a 3 wheeled joggers baby carriage – he had fitted it out with a 30 gal sterilite case to put a tent in & carry food & water – i would have joined him & his dog ( cheaper to travel with & alot fewer problems than a woman ) ( smile ) – i would have made modifications to a motorized trike – do you think that is possible ? …
A trike is more stable if you’re worried about balancing a low recumbent on tight corners. Some of the low ones are very aerodynamic, but that also makes them harder to see in traffic. They also weigh a lot, which makes a difference on hills. I believe a two-wheeled recumbent is the best compromise of weight, aerodynamics and visibility in traffic… but then, I’ve never owned a trike.
many thanks for the input – is there any advantage to a recumbent “trike” ?…
The short answer is yes, if it’s the type that fits over the rear wheel with a friction roller. I’ve seen others that mount within the upright bicycle’s diamond frame and then use a chain drive to the rear wheel. You’d have to modify the mounting hardware to also fit above the rear wheel and chain drive it on the left side of the wheel to a large gear.
I used to use a two stroke gas engine to power a Turner recumbent, but the smell and sound made me go electric. Good luck!
hi nrg ! i’ve got a standard bike with an 85 cc 2 stroke – it hits 45 mph easily – do you think i could re-mount this engine somehow on a recumbent ? thankx …..