Recent content by Rob Mcgregor

Hi Everybody- Thanks so much for all the great input. You guys are the best! Take care, Rob

Hi Everyone- Thanks again for all the great help and the excellent community you have built here. I'm debating whether I should get a pedal first or immediate start controller. Seems the benefit of a pedal first controller is that there is less chance of someone turning your throttle while...

Hi Everybody- Thanks so much for the informative replies. Is this the Puma? What is the top speed on this motor at 36V, 48V and 72V, 26" wheel? Can I get a controller for this at 48V? What is the drop out spec w/ and w/o disc brake...

Hi Johnbear, Drunkskunk and all- Thanks so much for the replies! I was under the impression that the Golden motor was gearless. Is it not? Does it sound like gears Johnbear? Has anyone set it up for 48V? I heard it doesn't run correctly w/ a Crystalyte controller. Maybe a 60/120 degree...

Hi Everybody- First off, I want to say you guys have an awesome forum here. You have built a really great community. Thanks so much for the sharing. I want to build an electric bike and a little intimidated by the options. I want to have a top speed of around 25 mph or higher. I'd like to...

Thanks Tyler and Josh and all. I really appreciate the input. Take care, Rob

Hi Josh and all- The geared motor thing worries me. All that friction has to put wear and tear to the hub. The brushless non-geared motors have so little mechanical wear in the design, it's kinda amazing. That said, the torque available with the EZ geared motor is much higher and therefore...

Hi Josh and all- I was under the impression that the simulator shows output power and not input power. Input power can be deduced from output power and efficiency. 100 watts output at 50% efficiency equals 200 watts input. I am assuming 250 watts advertised for the bike linked to in the...

Hi and thanks Josh, Tyler, Dee Jay, Drunkskunk, and Kyakdiver, It does seem the EZ/Puma motor decreases to about 50% efficiency at 10 mph at high voltage from about 60% at 36V. The Crystalyte motors seem to to have equal efficiency (around 70%) at high or lower voltage at 10 mph, at least...

Did you see the link on the bike from the original post on this thread? I don't think it looks like a grandma bike. What do you think? I appreciate the dialogue. Thanks and take care, Rob

That's pretty cool looking. However, I was hoping to work with something that is more stealthy and doesn't turn heads. Might get a little better aerodynamics from that bike. Looks comfy! Take care and thanks, Rob

Yes, I realize how fast 66V+ 35A+ is going to be. The thing is, I test rode a Schwinn World GSE electric bike which was very impressive. http://www.schwinnbike.com/products/bikes_detail.php?id=887 However, I saw room for improvement. It cut power at 18mph. That is faster than I've ridden a...

Yeah, I was thinking a bike like one of these w/ a 407 and a 72V 35A+ setup might work good. I'd like full suspension, aluminum frame, laid back riding, a light powerful battery that locks, and disc brakes. Trying to get it all I guess. I think it might be possible though...

Thanks Kyakdiver for the extra research. I should have gone that far. Makes me even more hesitant on the quality issue. Here's some other bikes I've looked into for a starter kit but with good options for upgrade. What do you think? http://www.allwebscooters.com/0286.asp I like the large...

Hey thanks for the feedback Arbiker! I've been doing a lot of research on building a bike but it seems kinda difficult to build something that is clean looking. This bike looks pretty stealth which is what I'm looking for and might be a good platform for modification in the future. I'm not...