Search found 1390 matches

by Warren
Mar 21 2021 8:30am
Forum: EBike General Discussion
Topic: Solid tires?
Replies: 42
Views: 2147

Re: Solid tires?

Probably has horrible as all airless tires in the last 130 years.

https://www.autoblog.com/2021/03/20/met ... rs-trucks/
by Warren
Mar 09 2021 10:33am
Forum: EBike Build Threads
Topic: Nazca Pioneer solar recumbent build
Replies: 72
Views: 2776

Re: Nazca Pioneer solar recumbent build

I think the best would be a motor mounted under the seat with a gates belt on a large sprocket on the rear wheel. That's what Warren was talking about on the first page of this thread too. The secret sauce is those sprockets that bolt onto a disk brake rear hub in place of the disk. It's definitely...
by Warren
Mar 07 2021 4:36pm
Forum: Large EV General Discussion
Topic: Chevy Bolt first drive
Replies: 161
Views: 31463

Re: Chevy Bolt first drive

Warren, Have you had notification of a Factory recall from GM regarding a possible issue with the Bolt battery pack ? I understand GM are recalling many (all ?) Bolt’s for a pack replacement following some unexplained fires in the LG packs. Hyundai Kona EV’s ...also with LG supplied packs, are also...
by Warren
Feb 05 2021 11:37pm
Forum: EScooter/EMotorcycle Build Threads
Topic: Electric Roadster
Replies: 126
Views: 6942

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: 243

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: 484

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: 320
Views: 37631

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: 484

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: 484

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: 484

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: 320
Views: 37631

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 Build Threads
Topic: My RC Mid Drive with Single Stage Reduction
Replies: 375
Views: 55493

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: 925

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 Build Threads
Topic: My RC Mid Drive with Single Stage Reduction
Replies: 375
Views: 55493

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: 401

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: 401

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: Bike Mechanical & Structural
Topic: RANS recumbent frame kit for Bafang M series mid-drives
Replies: 4
Views: 253

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: 72
Views: 2776

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.