Search found 3599 matches

by tomjasz
Feb 24, 2018 10:16 am
Forum: General Discussion
Topic: la Nina rears her ugly head
Replies: 666
Views: 23218

Re: la Nina rears her ugly head

Bizarre weather in MN, but it means streets are clear and it's errands by bikes.
Screen Shot 2018-02-24 at 9.14.59 AM.png
Screen Shot 2018-02-24 at 9.14.59 AM.png (46.31 KiB) Viewed 14 times
by tomjasz
Feb 24, 2018 9:54 am
Forum: E-Bike Technical
Topic: portable air compressors for tires
Replies: 53
Views: 1271

Re: portable air compressors for tires

My 48v compressor arrived today but.... it seems to be 12V. It has car cigarette lighter connector not the IEC connector shown in the product pictures, no sticker saying 48V on the unit, and the motor itself is stamped 12V. I've emailed banggood for their story..... EEGADS! Another 12V I don't need...
by tomjasz
Feb 24, 2018 2:24 am
Forum: E-Bike General Discussion
Topic: Zip Tie Failure
Replies: 16
Views: 334

Re: Zip Tie Failure

Years of backcountry adventures in my misspent "yoo" introduced me to NRS straps.Nothing worse than tilting and loosing gear from poorly secured gear. A bit expensive but not oppressive. https://www.nrs.com/product/1441/nrs-1-color-coded-tie-down-straps. https://www.nrs.com/product/1446/nrs-15-padde...
by tomjasz
Feb 24, 2018 2:14 am
Forum: Items for Sale - Used
Topic: Mac motor rear cassette side cover
Replies: 2
Views: 39

Re: Mac motor rear cassette side cover

$$? Shipped?
by tomjasz
Feb 24, 2018 2:12 am
Forum: E-Bike General Discussion
Topic: Advice on my first build: DD rear hub 48V 1000W
Replies: 30
Views: 1425

Re: Advice on my first build: DD rear hub 48V 1000W

So after a long delay of trying to get PayPal to work with leaf bike UPDATE: after a rapid e-mail conversation with Peter Chou from Leaf-bike apparently the 2S - 26 inch 48V 500W rear hub motor is in fact direct drive. But from what I understood, it differs from the bigger 1000W model in that it ha...
by tomjasz
Feb 24, 2018 2:03 am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 299
Views: 25434

Re: kWeld - "Next level" DIY battery spot welder

It's starting to look like the 12V car starter lead-acid battery truly is the best option for someone who does not want to use LiPo. The 12V style is everywhere, but I recall there are 6V lead-acid starter batteries for older cars and golf carts (perhaps rare, and hard to find though...) Big and he...
by tomjasz
Feb 23, 2018 3:21 am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 299
Views: 25434

Re: kWeld - "Next level" DIY battery spot welder

As a LiPo alternative I would like to try a 4S4P made of LifePo4 A123 26650 like these: http://www.batteryspace.com/A123-System-Nanophosphate-LiFePO4-26650-Rechargeable-Cell-3.2V-2500-mAh.aspx While 12v LA batts are bulky, but I can pick them up for the core charge from battery sellers. When done r...
by tomjasz
Feb 21, 2018 2:57 pm
Forum: E-Bike Photos & Video
Topic: BBSHD Takes on the Luiz Fire Road
Replies: 7
Views: 329

Re: BBSHD Takes on the Luiz Fire Road

NICE battery pack!
by tomjasz
Feb 18, 2018 3:43 pm
Forum: E-Bike Technical
Topic: Anderson Technical Information Thread
Replies: 9
Views: 686

Re: Anderson Technical Information Thread

I melted and wore out most of the Andersons I had above 20A, both for battery and phase wire. They totally can't deal with a lithium switch current from the main battery. Now I use gold plated 60amp phase wires, and 3 euros french 2 pin 240V plugs which snap into place for the battery wires. That's...
by tomjasz
Feb 17, 2018 6:42 pm
Forum: E-Bike Technical
Topic: Anderson Technical Information Thread
Replies: 9
Views: 686

Re: Anderson Technical Information Thread

It pays to poke around for parts. Ebay is where I find the best prices. Some items, not connectors, are fine from China. I got 20 of these for $2.89.Powerworx and acer-racing have had the best prices and consistently American made. I use them on most of my stuff since I don't run high power. Over 30...
by tomjasz
Feb 17, 2018 6:36 pm
Forum: E-Bike General Discussion
Topic: cable operated hydraulic brakes
Replies: 33
Views: 438

Re: cable operated hydraulic brakes

I have a set of BB7 cable discs on my fastest bike. I dunno if there's really much difference. I found that KoolStop eBike (grey pads) and KoolStop MTB pads First ordered in Aug 2014 on the recommendation of Chalo,Kool Stop MTN Mountain Bicycle Brake Pads (Threaded, Salmon). Are nearly as good as th...
by tomjasz
Feb 17, 2018 6:30 pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 1507
Views: 112120

Re: New "TSDZ2 Torque Sensor Central Motor"

I really want this to be a successful motor, but so far I have had none of the problems with 4 BBSxx motors. Just no torque sensing. I'm about to end the pain and just go all geared hub drives with decent torque sensors for Axel systems. Nuff. Unless one really NEEDS a mid drive. I still think the T...
by tomjasz
Feb 15, 2018 11:10 pm
Forum: E-Bike Technical
Topic: portable air compressors for tires
Replies: 53
Views: 1271

Re: portable air compressors for tires

eCue wrote:
Feb 15, 2018 12:38 pm
I noticed the same pump fetcher posted on ebay with options for 48v 60v and 72v for around $20
15.99usd on banggood today
by tomjasz
Feb 14, 2018 12:38 am
Forum: E-Bike Non-hub Motor Drives
Topic: BBSHD Firmware Upgrade
Replies: 2
Views: 160

Re: BBSHD Firmware Upgrade

Does anyone know how to upgrade the firmware on the BBSHD controller and where to get the latest firmware? According to Luna the controllers currently being shipped from Bafang no longer have the issue with the non-progressive throttle while peddling. Luna has been gracious enough to offer to upgra...
by tomjasz
Feb 14, 2018 12:37 am
Forum: E-Bike Technical
Topic: portable air compressors for tires
Replies: 53
Views: 1271

Re: portable air compressors for tires

:D I'd just install a step down converter, wire in a DC plug to bypass the batteries, and run it off of the bike's batteries. Why bother when a 48-60V is so cheap? No reason. Didn't know you could get small cheap ones that took those voltages. I'm fine pumping by hand, but if I were to carry a compr...
by tomjasz
Feb 13, 2018 10:17 pm
Forum: E-Bike Technical
Topic: portable air compressors for tires
Replies: 53
Views: 1271

Re: portable air compressors for tires

wturber wrote:
Feb 13, 2018 8:49 pm


I'd just install a step down converter, wire in a DC plug to bypass the batteries, and run it off of the bike's batteries.
Why bother when a 48-60V is so cheap?
by tomjasz
Feb 13, 2018 10:16 pm
Forum: E-Bike Technical
Topic: portable air compressors for tires
Replies: 53
Views: 1271

Re: portable air compressors for tires

I've just come across one that takes AA batteries . More expensive but you can get those batteries most places (apart from on the trail!) but I guess rechargeables would be good, NiMH possibly better than alkaline. I'm not so sure about the AA size, possibly a bit small, so it's one of those review...
by tomjasz
Feb 13, 2018 10:15 pm
Forum: E-Bike General Discussion
Topic: How To, 50A BBSHD Controller Mod
Replies: 142
Views: 10767

Re: How To, 50A BBSHD Controller Mod

Hello, how do I know if my BBSHD controller has the 3077 MOSFETS? Also, in another article regarding replacing MOSFETS for old BBS02 (https://electricbike-blog.com/bbs02-controller-mods/) it was suggested to replace with these other types: https://www.digikey.com/products/en?x=12&y=14&lang=en&site=...
by tomjasz
Feb 12, 2018 11:31 pm
Forum: E-Bike Technical
Topic: portable air compressors for tires
Replies: 53
Views: 1271

Re: portable air compressors for tires

teklektik wrote:
Feb 12, 2018 10:27 pm
Where's the 3D printer guys when you need them?
Only half built...
by tomjasz
Feb 12, 2018 7:08 pm
Forum: E-Bike Technical
Topic: portable air compressors for tires
Replies: 53
Views: 1271

Re: portable air compressors for tires

fechter wrote:
Feb 12, 2018 3:35 pm


It's the one shown about 12 posts up.
Another angle:

Tire pump final top.jpg
Sorry I missed it. I like the idea!
by tomjasz
Feb 12, 2018 2:42 pm
Forum: E-Bike Technical
Topic: portable air compressors for tires
Replies: 53
Views: 1271

Re: portable air compressors for tires

fechter wrote:
Feb 12, 2018 9:33 am
Here's what mine looked like inside before I cut down the case:

Tire Pump insides.jpg
Thanks, how much case did you remove? Any chance of a picture? Always up for one of your project photos! THANKS!
by tomjasz
Feb 12, 2018 2:39 pm
Forum: E-Bike Technical
Topic: portable air compressors for tires
Replies: 53
Views: 1271

Re: portable air compressors for tires

dilkes wrote:
Feb 12, 2018 9:56 am
I ordered one.
When you "cut down the case" or did "case stripping", what did you put the guts into?
I store mine in a nylon bag.
by tomjasz
Feb 12, 2018 4:13 am
Forum: Battery Technology
Topic: LiPO and cold winter temp
Replies: 44
Views: 7947

Re: LiPO and cold winter temp

2-3 5v pads and a cheap controller. Insulate with foam. My buddy copied the plan and commute in below zero, with ZERO sag.
by tomjasz
Feb 12, 2018 3:30 am
Forum: E-Bike Technical
Topic: portable air compressors for tires
Replies: 53
Views: 1271

Re: portable air compressors for tires

I’m big on Banggood and generally pleased with their stuff. At $11.34USD I don’t expect it’ll take much of a beating but I seldom need a pump. I’m taking a flyer and going for one, last one i 5ook from the case, and cleaned up wiring and made it an even smaller package. I have never ordered from the...
by tomjasz
Feb 12, 2018 3:22 am
Forum: E-Bike Photos & Video
Topic: BBSHD Takes on the Luiz Fire Road
Replies: 7
Views: 329

Re: BBSHD Takes on the Luiz Fire Road

Great views and ride, thanks!