Recent content by ralph cramden

lifeelectricvehicles.com I still have and ride my Scorpion 27 since 2014. It went through a rough patch where I had to send my power hub back (twice!) to China, where the drivetrain maker still supports it. Finally they really fixed it and it has been stable for several years. I have two...

Speed: as Einstein said, there is more to life than increasing its speed. The modern bicycle is the most efficient form of transportation for energy input. But if you crave speed you are negating the simplicity of that equation. I rode my old road bike for 26 miles today while my e-bike is...

I like your design and its focus on weight. 250 watts is the right motor to reduce weight. But your low range number is a problem. My current e-bike, went from a 9.3AH battery to a 10.5AH battery in the same form factor and weight. So I believe you could and should increase from the current...

Weight on the radcity? [Edit: I checked and it's about 60 lbs minimum]. The iZip is somewhat lighter, and the company probabably has better support, since they make their own hardware. iZip has many different models that have different characteristics. But as long as you enjoy what you have...

Actually it didn't "tank" in the usual sense of the word. BIONX had a contract with General Motors, but there emerged a dispute of some kind. GM was threatening to invoke clauses that would effectively appropriate BIONX technology. The owner, a billionaire already (he heads Magna International)...

1. If you are talking tough, you would have to go German or Dutch. There is a company that sells genuine Dutch bikes in California. They are the toughest. The problem is weight. These type bicycles prioritize weight below ruggedness. I can expand more on this theme if anyone wants me to. 2. Yes...

That is excellent. Anything under 50 lbs usually pushes one into the 4k price range. That rule has still not changed as far as I can tell. We don't need to consider Super Commuter if the XM700+ is available for under 4k.

Trek has good bikes and well supported. However the weight is not the best considering the price tag. The Super Commuter 8+, which is more expensive, is listed at 52 lbs. They don't list the weight specification for the 7+ (too embarrassing?). Under the Weight section they just say the combined...

In 2015 I bought a 37 lb. 7-speed hub electric bike from Prodecotech. They replaced the 250W motor two times. The third one failed 2 days after the expiration of the warranty. I brought it to a local "dealer" who spent a month and half working with Prodecotech to get the motor fixed. The third...