Search found 169 matches

by mi7d1
Jun 10 2011 4:31pm
Forum: E-vents
Topic: Electric Vehicle Celebration Day July 9th
Replies: 2
Views: 1029

Re: Electric Vehicle Celebration Day July 9th

I don't know about a Tesla but I saw my first Nevco Gizmo at the EV Awareness Day five years ago. Fell in love with it at first sight. Took seveal years but I own a year 2000 model now. Number nineteen. I would enjoy attending again. It all depends on my work schedule. http://farm5.static.flickr.com...
by mi7d1
May 16 2011 3:06pm
Forum: E-vents
Topic: Portland, OR: Meet and Greet...
Replies: 71
Views: 11290

Re: Portland, OR: Meet and Greet...

Saturday is the bigger of the two days in my opinion. Gates open at ~8:00am. First race last year began around 11:00am. I looked for a race schedule for this year but it has yet to be posted. The HPC is in less than two weeks and the website isn't finished, Wow! Looking forward to seeing your Twike ...
by mi7d1
May 16 2011 1:57pm
Forum: E-vents
Topic: Portland, OR: Meet and Greet...
Replies: 71
Views: 11290

Re: Portland, OR: Meet and Greet...

As of last week, my Twike is back on the road... <snip> Phil Phil, would you be able to bring your Twike by Portland International Raceway (PIR) on Memorial Day weekend (May 28-29th). Many of us at OHPV and in the HPV world would enjoy seeing it. Might be a few other veolomobiles showing up. I'm de...
by mi7d1
Apr 22 2011 8:10pm
Forum: E-vents
Topic: Portland - PSU Friday, April 22 Earth Day Event
Replies: 31
Views: 4722

Re: Portland - PSU Friday, April 22 Earth Day Event

I had a great time. Many thanks to Greenerwheels and Neptronix for you work. Thanks Steve for the use of your chair. I'll need to bring one myself next time.

Bill
by mi7d1
Apr 11 2011 5:24pm
Forum: E-vents
Topic: Portland - PSU Friday, April 22 Earth Day Event
Replies: 31
Views: 4722

Re: Portland - PSU Fraday, April 22 Earth Day Event

I'd like to attend the PSU event with you guys. I can bring my e-assist velomobile

Bill



Edited to correct event date
by mi7d1
Apr 11 2011 2:33pm
Forum: E-vents
Topic: Portland, OR: Meet and Greet...
Replies: 71
Views: 11290

Re: Portland, OR: Meet and Greet...

I'd be happy to bring my velomobile. I have an invitation to attend an Earth Day event up around Seattle but the PSU event is easier to do on a work day.

Sun Coaster, please post the link to the new Earth Day topic post
by mi7d1
Mar 04 2011 3:27pm
Forum: E-Bike Non-hub Motor Drives
Topic: Where to buy Sturmey Archers internal hub?
Replies: 16
Views: 4272

Re: Where to buy Sturmey Archers internal hub?

Looking forward to seeing how much lecky/leggy torque these hubs can handle. Is there a disclaimer about the minimum chainring size you can use with these hubs? Being that up to 34T sprockets can be engaged on the cassette cluster, there is some serious potential for torque input with small chainri...
by mi7d1
Feb 22 2011 5:15pm
Forum: E-vents
Topic: Portland, OR: Meet and Greet...
Replies: 71
Views: 11290

Ride an e-bike? PSU researchers want to hear from you

Posted on BikePortland.org Feb 22, 2011 http://bikeportland.org/2011/02/22/psu-looking-for-e-bike-owners-for-research-project-48345 Here's some text from a flyer to recruit interview subjects: Have you purchased an electric bicycle? or converted your bike to electric-assist? What compelled you to pu...
by mi7d1
Jan 03 2011 3:03pm
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 261
Views: 45873

Re: mid-drive questions

Bill, This is the current link. http://www.hembrow.eu/personal/kreuzotter/espeed.htm Warren You got me there, I'd forgot to include that link also. One thing to not for the metric challenged is that the hembrow link is only in metric whereas the web archive link has the ability for bot metric and "...
by mi7d1
Jan 03 2011 2:15pm
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 261
Views: 45873

Re: mid-drive questions

Warren, are you familiar with the Bicycle Speed and Power Calculator? The original site is no longer online however one can still access it via the web archive's Wayback Machine. Here's a link to the calculator; http://web.archive.org/web/20080213094200/http://www.kreuzotter.de/english/espeed.htm Th...
by mi7d1
Dec 28 2010 4:14am
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 261
Views: 45873

Re: mid-drive questions

From http://www.ebikes.ca/troubleshooting.shtml item number eight in reference to the threaded collar shearing off on the C'lyte 400 series motors (emphasis mine) #8 Threaded Collar Shearing Off The aluminum side covers of the Crystalyte hub motors aren't engineered by NASA. Sometimes there are void...
by mi7d1
Dec 19 2010 8:51pm
Forum: E-vents
Topic: Portland, OR: Meet and Greet...
Replies: 71
Views: 11290

Re: Portland, OR: Meet and Greet...

neptronix wrote:Hey guys..
I forget the name of the chap who had the recumpence reduction drive but no bike.

I am interested to see how that project is going. Please PM me, reduction-drive-havin'-dude :)
I believe that would be Greg http://endless-sphere.com/forums/member ... ile&u=7297

Bill
by mi7d1
Dec 08 2010 1:06am
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 261
Views: 45873

Re: Crystalyte mid-drive questions

Bill, "I see he was also using a 13/44 combo for a 3.38:1 ratio. Which, if you use the company numbers for no-load rpm, gives him 84.2 rpm at 80%. Right where I would want to be. "Perhaps I should have used a smaller freewheel like you mentioned" Actually, I suggested a bigger chainring, because yo...
by mi7d1
Dec 07 2010 11:20pm
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 261
Views: 45873

Re: Crystalyte mid-drive questions

Sturdly, "Dom Harvey had a 48 volt 408 in his BB drive, built about 4 years or so ago now." Wow! He did just what I had suggested. He made a left hand threaded adapter, for a southpaw freewheel. http://www.flickr.com/photos/89372267@N00/134108200/in/set-72057594115596918/ Man, I wish I still had ac...
by mi7d1
Dec 07 2010 11:08pm
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 261
Views: 45873

Re: Crystalyte mid-drive questions

Bill, "I'm interested to know where you're getting the no-load 356.4 rpm for a 408 motor." From their website. http://www.crystalyte.com/Mspecs.htm I haven't checked that simulator yet. I would assume the company is using actual measurements, not simulations? Warren Very interesting between the two...
by mi7d1
Dec 07 2010 9:54pm
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 261
Views: 45873

Re: Crystalyte mid-drive questions

Bill, Now I am confused. Let us say your friend is using the 409 wind of his motor. The 36 volt no-load speed is 317.9 rpm, so the 80% (most efficient?) speed is 254.3 rpm. With his 16/48 reduction, he would have a cadence of 84.8 rpm...pretty comfortable. For you, 408 wind, 356.4 rpm no-load, 80% ...
by mi7d1
Dec 07 2010 8:03pm
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 261
Views: 45873

Re: Crystalyte mid-drive questions

It just dawned on me that the 2008 E-S link I posted about the e-Power Challenge was or could be misleading. That link was about when I was running a C'lyte 406 hub motor in my rear wheel with a 48v 18Ah SLA pack. In April of 2009 I was building my bottom bracket drive for the May 2009 race date. Wi...
by mi7d1
Dec 07 2010 7:26pm
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 261
Views: 45873

Re: Crystalyte mid-drive questions

mi7d1, Looks like your reduction is 16/48. According to their spec page, a C408 runs 356.4 rpm on 36 volts, no load. That means your cadence is 95 rpm at 80% of no-load. Am I figuring correctly? Warren With my bottom bracket drive I'm using a C'lyte 408 motor with an 18t freewheel and a 46t chain r...
by mi7d1
Dec 07 2010 7:11pm
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 261
Views: 45873

Re: Crystalyte mid-drive questions

mi7d1, You must be running a internal gear hub in the rear, correct? I can't see how you could spin at 30 mph for 44 miles with that tiny chainring, and a normal 11 tooth cassette high gear in back. I suspect your buddy's Stokemonkey wouldn't do any better than your rig. Hills take a huge amount of...
by mi7d1
Dec 07 2010 3:47am
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 261
Views: 45873

Re: Crystalyte mid-drive questions

If I don't then the motor will pull my feet around in circles and that's not fun. This is just unacceptable to me. I think it's avoidable with enough freewheels in the system. How free running are the DD hub motors? Is it acceptable to spin the DD hub with no power using pedals only? If it is then ...
by mi7d1
Dec 06 2010 11:21pm
Forum: E-Bike Non-hub Motor Drives
Topic: Warren's 350 MAC mid-drive (finally) recumbent
Replies: 261
Views: 45873

Re: Crystalyte mid-drive questions

I'm a little late to the thread but wanted to say that I use a C'lyte 408 with a 36v 20Ah LiFePO4 Headway battery pack driving my bottom bracket. Speed wise it'll do just under 30mph at under 14Wh/mile with a 44 mile range running wide open. A friend of mine who has a Stokemonkey gets better than 7W...
by mi7d1
Dec 06 2010 1:50am
Forum: E-Bike General Discussion
Topic: Whats your top speed with 48 volts?
Replies: 23
Views: 1491

Re: Whats your top speed with 48 volts?

In 2008 I raced in the ePower Challenge with four 12v 18Ah SLA batteries (48 lbs) and a C'lyte 406 hub motor in a 26" wheel. The track had two feet of elevation gain and something like 12 corners that killed time due to wheel scrubbing of a tadpole trike. My race results were as follows; 4 12V AGM 1...
by mi7d1
Dec 06 2010 12:50am
Forum: E-vents
Topic: Portland, OR: Meet and Greet...
Replies: 71
Views: 11290

Re: Portland, OR: Meet and Greet...

I too had a great time. At the event I was remorseful that I didn't bring my bike. Yesterday, I had my dog euthanized due to kidney failure he was 14 years old Pomeranian and haven't been in the mood for much of anything. Hopefully we can get together again sometime soon so that I can participate wi...
by mi7d1
Nov 17 2010 8:18pm
Forum: E-vents
Topic: Portland, OR: Meet and Greet...
Replies: 71
Views: 11290

Re: Portland, OR: Meet and Greet...

I should be able to attend the meeting. My velomobile needs some work on the electrical lighting system but there's always the "Gizmo to fall back on as long as I charge at dnmun's place.

Bill
SE Pdx
by mi7d1
Oct 27 2010 6:58pm
Forum: E-vents
Topic: Portland, OR: Meet and Greet...
Replies: 71
Views: 11290

Re: Portland, OR: Meet and Greet...

Don't forget me, guys. Weekends work best as that's when I'm most likely to be available.

Bill