Search found 1384 matches

by Warren
Feb 05 2021 11:37pm
Forum: E-Scooter and Motorcycle Build Threads
Topic: Electric Roadster
Replies: 86
Views: 4352

Re: Electric Roadster

This bike is a work of art. Your craftsmanship is amazing.
by Warren
Feb 02 2021 7:04pm
Forum: Battery Technology
Topic: Two lithium chargers in parallel
Replies: 4
Views: 192

Re: Two lithium chargers in parallel

Yes. I have been running parallel chargers since 2011. They need a diode in them to allow running in parallel, without one feeding into the other, but most apparently do. Did it with Chinese 5 amp chargers, and now with two Grin Satiators.
by Warren
Feb 01 2021 3:12pm
Forum: EBike General Discussion
Topic: Durable 10 speed cassette and chain?
Replies: 21
Views: 389

Re: Durable 10 speed cassette and chain?

I've noticed that even with a rather low power (750W) mid-drive the smallest cogs (11t and 13t) wear out really quickly. If you don't need huge range in the cassette, it would be better to stick to bigger cogs. Other option is to buy a bunch of cheap 11t and 13t cogs and replace them as necessary r...
by Warren
Feb 01 2021 2:58pm
Forum: EBike Build Threads
Topic: High performance & durability Cannondale Semi Recumbent
Replies: 319
Views: 36565

Re: High performance & durability Cannondale Semi Recumbent

Trikes are most popular because most recumbent buyers are old farts who have lost their sense of balance, and can stop half way through a climb, and rest without falling off. Trikes are, and always will be, less efficient than a similar single track vehicle.
by Warren
Jan 31 2021 2:50pm
Forum: EBike General Discussion
Topic: Durable 10 speed cassette and chain?
Replies: 21
Views: 389

Re: Durable 10 speed cassette and chain?

everything I saw from the flea bay links was Used (and likely worn?).. not New old stock.. and anything actually quality NOS costs a small fortune.. Yeah. Like I said, I bought a bunch back when this stuff was considered obsolete. Not a good as buying Bitcoin at $850 like my buddy, but I'm happy. lol
by Warren
Jan 31 2021 9:38am
Forum: EBike General Discussion
Topic: Durable 10 speed cassette and chain?
Replies: 21
Views: 389

Re: Durable 10 speed cassette and chain?

Laissez wrote:
Jan 31 2021 8:20am
Yep I know that I can get shimano altus, but it's really inferior compared to XT to be honest with you.
I don't know what you see when you use the link I posted, but I see NOS (new old stock) 1990's XTR, etc.
by Warren
Jan 30 2021 9:29pm
Forum: EBike General Discussion
Topic: Durable 10 speed cassette and chain?
Replies: 21
Views: 389

Re: Durable 10 speed cassette and chain?

You can look for NOS 8-9 speed derailleur, 8 speed shifter and cogs. That is all I run on my bikes, with SRAM 8 speed chain. I bought this stuff when it was just obsolete, before it became collectible. lol https://www.ebay.com/b/Shimano-Rear-Derailleurs-for-Mountain-Bike-8-Speed/177813/bn_5670514 ht...
by Warren
Jan 28 2021 1:19pm
Forum: EBike Build Threads
Topic: High performance & durability Cannondale Semi Recumbent
Replies: 319
Views: 36565

Re: High performance & durability Cannondale Semi Recumbent

I owned and rode an original 20/20 Rocket, a 26/26 converted original V-Rex, and rode this rowing 700c high racer 3,552 miles. Much of that was in the Blue Ridge mountains of Virginia. Rode down to Vesuvius, and back up. It is considered the steepest, hardest climb on the entire Trans America Bike R...
by Warren
Jan 21 2021 10:34pm
Forum: EBike Non-hub Motor Drives
Topic: My RC Mid Drive with Single Stage Reduction
Replies: 370
Views: 54059

Re: My RC Mid Drive with Single Stage Reduction

Ecyclist wrote:
Jan 21 2021 8:51pm
Warren wrote:
Jan 21 2021 7:09pm
Ecyclist wrote:
Jan 21 2021 1:25am
Are all these builds without freewheels on a motor and a chainring?
What is going on here?
I put 30K miles on a mid-drive with no freewheeling cranks. It is awesome.
Can I see your build please? 30K miles sound like a lot.
Sure. Click on the link under this post.
by Warren
Jan 21 2021 7:24pm
Forum: EBike Non-hub Motor Drives
Topic: reliable middrive for commute?
Replies: 21
Views: 837

Re: reliable middrive for commute?

Mid drives are more fun and more capable, watt for watt. Hub motor drives are more likely to get you to work on time, and less likely to leave you walking. Totally agree. I put 30K on a 250-500 watt mid-drive. I ate one rear derailleur, one freehub, and lots of chains. My monster DD required 150 mm...
by Warren
Jan 21 2021 7:09pm
Forum: EBike Non-hub Motor Drives
Topic: My RC Mid Drive with Single Stage Reduction
Replies: 370
Views: 54059

Re: My RC Mid Drive with Single Stage Reduction

Ecyclist wrote:
Jan 21 2021 1:25am
Are all these builds without freewheels on a motor and a chainring?
What is going on here?
I put 30K miles on a mid-drive with no freewheeling cranks. It is awesome.
by Warren
Jan 13 2021 1:45pm
Forum: Battery Technology
Topic: Imbalance When Empty?
Replies: 14
Views: 346

Re: Imbalance When Empty?

Yes thats how it is, and one more reason could be the BMS. Lets say the BMS does balance the pack at 4.10V with accuracy of 0.01V and then the pack get discharged to the end of the curve, that small difference from the beginning could increase to 0.10V then. Yup. Our 2017 Bolt, like most until half...
by Warren
Jan 13 2021 1:25pm
Forum: Battery Technology
Topic: Imbalance When Empty?
Replies: 14
Views: 346

Re: Imbalance When Empty?

You all may be interested to hear what GM thinks about cell voltage variation. Back in 2017, when the Chevy Bolt came out, their service manual said that all cells in their 96s3p packs, from 4.16V down to 3.28 V, should be within 0.03 V. If any cells fell outside that value, the battery section cont...
by Warren
Jan 11 2021 10:37pm
Forum: EBike General Discussion
Topic: RANS recumbent frame kit for Bafang M series mid-drives
Replies: 4
Views: 142

Re: RANS recumbent frame kit for Bafang M series mid-drives

Oh wow. You know, i called that company asking for parts a while back, and they were super friendly and fun to talk to. I'm happy to see they are pioneering still and not stagnating. .. it does look unnecessarily overbuilt and under-suspended. I feel this could be done much better.. it will have a ...
by Warren
Jan 10 2021 10:04pm
Forum: EBike Build Threads
Topic: Nazca Pioneer solar recumbent build
Replies: 50
Views: 1729

Re: Nazca Pioneer solar recumbent build

k2orbust wrote:
Jan 09 2021 6:04pm
They say regen saves a ton of brake wear, so that is something we can look forward to.
I have 29K miles on my DD cargo bike. I am still on the original brake pads! The regen drops out below 12 mph, at which point I usually coast ten feet, and then tap the brakes to put my feet down.
by Warren
Jan 07 2021 10:00pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Enclosed motorcycle?
Replies: 10
Views: 552

Re: Enclosed motorcycle?

Not sure what Craig is doing these days. He had a deer headbutt him off that scooter, riding in his cul-de-sac several years ago. The head trauma left him pretty beat up. His sons may be doing something. I know they ride Zeros now. They are friends of Terry Hershner
by Warren
Jan 03 2021 11:24pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Enclosed motorcycle?
Replies: 10
Views: 552

Re: Enclosed motorcycle?

The Swiss Ecomobile has been around for an age: It was replaced a decade ago by the Monotracer, and is now built in the Czech Republic, and called the Monoracer. It is gorgeous, but still crazy expensive. https://www.peravescz.com/electric-version/ https://youtu.be/ARLl_QDXXng?list=PLVvzYlefm5vagxL...
by Warren
Jan 03 2021 11:11pm
Forum: EBike Build Threads
Topic: Nazca Pioneer solar recumbent build
Replies: 50
Views: 1729

Re: Nazca Pioneer solar recumbent build

Aha, a mid drive setup with a jack shaft. I was actually suggesting the motor drive the left side of the rear wheel, not through the gears. That way you can run more power without wrecking the bicycle freewheel, and still have regen. That rear swingarm looks long enough that you could mount it belo...
by Warren
Jan 02 2021 6:53pm
Forum: EBike Build Threads
Topic: Nazca Pioneer solar recumbent build
Replies: 50
Views: 1729

Re: Nazca Pioneer solar recumbent build

Small DD motors in big wheels are not a good idea. Here is what I have been considering to replace my 350 watt MAC mid-drive, which is down after 30K miles, with a failed freewheel in the planetary gearset. I have a new 559 mm (26") rear wheel with a rim brake compatible rim, and a disc compati...
by Warren
Dec 30 2020 10:29am
Forum: EBike Build Threads
Topic: Nazca Pioneer solar recumbent build
Replies: 50
Views: 1729

Re: Nazca Pioneer solar recumbent build

Welcome aboard! Not nearly enough recumbents on here. I will be very interested in seeing your progress.
by Warren
Dec 25 2020 3:29pm
Forum: General Discussion
Topic: The Lost Recumbent
Replies: 9
Views: 651

Re: The Lost Recumbent

The oil embargo launched the rebirth of quite a few open, and enclosed, trikes. I used to have all the articles, books, journals, and periodicals from the 1970's through the early 2000s. I shipped it all off to UC San Diego Engineering School some years ago, I think it was. https://www.delo.si/asset...
by Warren
Dec 23 2020 12:48pm
Forum: General Discussion
Topic: The Lost Recumbent
Replies: 9
Views: 651

Re: The Lost Recumbent

Neuxstone wrote:
Dec 21 2020 2:23pm
This was BEFORE there was any Tadpoles...
First Tadpole or does anybody know of one before that?
There were tadpole trikes, an velomobiles in the mid 1970's.
by Warren
Dec 23 2020 12:44pm
Forum: General Discussion
Topic: The Lost Recumbent
Replies: 9
Views: 651

Re: The Lost Recumbent

Yeah. That was pretty interesting. I fooled with recumbent trikes back in the late 1980s. I had an idea for a lean steer trike, and had some guys in Indianapolis build one from my design for me. It was a real hoot to ride. I decided recumbent trikes were fun, but too low and wide for safety around c...