Search found 1256 matches

by 2old
Sep 28 2020 9:22pm
Forum: E-Bike Non-hub Motor Drives
Topic: Bafang bbs02 does not work with 73mm bb
Replies: 14
Views: 258

Re: Bafang bbs02 does not work with 73mm bb

FME with two different MTB's, a 2000 GT Zaskar and an inexpensive steel frame (Nashbar) with 68 mm BB, Lekkie cranks resolved the difference between the crank arms and chainstay (which was about 15 mm before the Lekkie cranks were installed). I tried an aluminum frame with 73 mm BB, but didn't use t...
by 2old
Sep 23 2020 9:02am
Forum: General Discussion
Topic: Kalkhoff 48v battery replacement.
Replies: 1
Views: 69

Re: Kalkhoff 48v battery replacement.

BionX had a very proprietary system; check ebikesca; I think they have a method to replace the controller and battery.
by 2old
Sep 21 2020 2:37pm
Forum: E-Bike General Discussion
Topic: a bike for my wife
Replies: 22
Views: 867

Re: a bike for my wife

+1 on the cargo bike. IMO much safer to mount a bike seat to or may have everything you need already mounted. Check Yuba and Tern if they're available in your area. Also, while they sell e-cargo, they also have analog that you could use as a donor.
by 2old
Sep 19 2020 7:39am
Forum: E-Bike Technical
Topic: Is regenerative braking really worth anything?
Replies: 104
Views: 2330

Re: Is regenerative braking really worth anything?

My first conversion was a geared 350w, 36V front conversion which was extremely enjoyable until my daughter "stole" it. Tried a 1200w, 52V DD and (for me) it wasn't fun since it seemed to overwhelm the front end and handling characteristics were affected adversely. Could have been me though.
by 2old
Sep 19 2020 7:31am
Forum: General Discussion
Topic: Just had an earthquake in Los Angeles
Replies: 124
Views: 14798

Re: Just had an earthquake in Los Angeles

Felt iy in the "OC", then back to sleep. At first it seemed to be increasing in scope, but subsided rapidly.
by 2old
Sep 18 2020 2:34pm
Forum: E-Bike General Discussion
Topic: Is DIY dying?
Replies: 33
Views: 869

Re: Is DIY dying?

Here's one that looks as trivial to install as anything I've seen and weighs under 6 lbs. Kind of spendy, but not all DIY is low budget. https://newatlas.com/bicycles/elevate-mountain-bike-motor/ It comes with a special rear disk brake, with I think an extra geared disk kind of like a chainring. Th...
by 2old
Sep 18 2020 11:23am
Forum: E-Bike Technical
Topic: 29r fork and wheel help
Replies: 3
Views: 116

Re: 29r fork and wheel help

AFAICT you're limiting yourself by requiring a coil spring fork. Most hubs from reputable companies use sealed bearings, but not sure about Shimano. There are a couple of bike experts; if they reply, you'll get excellent answers.
by 2old
Sep 18 2020 11:15am
Forum: General Discussion
Topic: la Nina rears her ugly head
Replies: 1848
Views: 134659

Re: la Nina rears her ugly head

I rode my eMTB with one Wednesday (AQI 120) when it was 98 degrees; not as much fun as usual, but better than riding the couch. Isn't your AQI exceedingly low now?
by 2old
Sep 18 2020 9:22am
Forum: E-Bike General Discussion
Topic: Is DIY dying?
Replies: 33
Views: 869

Re: Is DIY dying?

Lightest.bike seems to come out quite soon with a very lightweight mid drive. Also, hooking up a small hub motor as a mid drive is a really easy way to get a light, silent, low power setup with decent torque. IMO better in many aspects than the mid drives that are on the market now. Thats DIY :D Th...
by 2old
Sep 18 2020 9:21am
Forum: E-Bike General Discussion
Topic: Is DIY dying?
Replies: 33
Views: 869

Re: Is DIY dying?

Also, a four pound DIY mid-drive motor like some of the OEM's would be nice. I realize that's not the focus at ES. I think that would be a good match for 750W maximum and 20 mph maximum, with an average sized rider and no cargo. Which is exactly the job they're trying to do. If the job is harder th...
by 2old
Sep 18 2020 1:10am
Forum: E-Bike General Discussion
Topic: Is DIY dying?
Replies: 33
Views: 869

Re: Is DIY dying?

For me, battery improvement would be be increased wh per weight. We seem stuck with incremental gains, and I don't expect much improvement in the near future. Also, a four pound DIY mid-drive motor like some of the OEM's would be nice. I realize that's not the focus at ES.
by 2old
Sep 18 2020 12:51am
Forum: E-Bike General Discussion
Topic: A potato made me crash my bike and faceplant.
Replies: 85
Views: 2341

Re: A potato made me crash my bike and faceplant.

And don't watch any Rodney Dangerfield clips.
by 2old
Sep 17 2020 1:34pm
Forum: E-Bike General Discussion
Topic: Is DIY dying?
Replies: 33
Views: 869

Re: Is DIY dying?

In my experience riding a 1000w, 52V errand bike around town and BBS02 or pedal MTB on the local trails four times a week, I've encountered many OEM ebikes but have never seen another DIY bike. Awaiting a lighter mid-drive since I almost never use PAS above level 3 (of 9), so interested in a lower p...
by 2old
Sep 17 2020 1:14pm
Forum: General Discussion
Topic: la Nina rears her ugly head
Replies: 1848
Views: 134659

Re: la Nina rears her ugly head

AQI in San Francisco = 1, Marin County (Fairfax) = 2; our friend(s) there get out and ride. AQI in the 70's here today; think I'll stay home. Rode eMTB with KN95 mask at AQI 120, temperature 98 degrees yesterday.
by 2old
Sep 16 2020 1:15pm
Forum: General Discussion
Topic: la Nina rears her ugly head
Replies: 1848
Views: 134659

Re: la Nina rears her ugly head

AQI's in socal (Tustin, Orange area - my habitat) 87 - 117 today, so I'll ride soon (probably try a KN95 mask). My wife and I rode MTB in Chino Hills (125) for a couple of hours on Sunday with no apparent ill affects. What happened to San Francisco? AQI was 14 today; did a tornado of fresh air purif...
by 2old
Sep 14 2020 12:28pm
Forum: E-Bike Technical
Topic: Is regenerative braking really worth anything?
Replies: 104
Views: 2330

Re: Is regenerative braking really worth anything?

No one saying anything about a panacea, your use of that term shows bad faith. And the question is not one of belief nor opinion, easily tested for any given scenario. As stated, it can be a very valuable feature for those with those certain factors & use cases that make it so. In fact as OP made c...
by 2old
Sep 14 2020 12:09pm
Forum: E-Bike General Discussion
Topic: (What is) The Best Damn 500W (front) Hub Money Can Buy?
Replies: 20
Views: 548

Re: (What is) The Best Damn 500W (front) Hub Money Can Buy?

I had a 36V, 350w system (seven or so pound motor) that was really fun for both errands and off road, that my daughter appropriated. Then, for fun, tried a 48V, 1200w, but the large DD motor took the fun out of riding that bike, a steel 90's MTB, since the front end was too heavy and the power overw...
by 2old
Sep 13 2020 11:12pm
Forum: E-Bike Technical
Topic: Is regenerative braking really worth anything?
Replies: 104
Views: 2330

Re: Is regenerative braking really worth anything?

Pretty obvious; there are two groups. For one, regen is a panacea, for the other an unnecessary PITA. I'm in the second; not worth having for my systems which are relatively low-powered bicycles for errands or off road. Not worried about saving a few watts or extending the life of brake pads, and ne...
by 2old
Sep 10 2020 11:10am
Forum: E-Bike Build Threads / Photos & Video
Topic: New build: Gory Fisher hardtail 750w 36v rear hub -HELP!!
Replies: 12
Views: 258

Re: New build: Gory Fisher hardtail 750w 36v rear hub -HELP!!

Some XT-90 connectors are manufactured with a spark arrest (LunaCycle); I procure the ones with "pigtails" and splice them in. Hopefully the rim you selected has the appropriate diameter for the spokes. You might check Sheldon Brown for wheel building advice. The freewheel should screw on the hub. S...
by 2old
Sep 09 2020 12:35pm
Forum: Motor Technology
Topic: Leaf / leafmotor / leafbike high efficiency 1500w motor
Replies: 1777
Views: 234942

Re: Leaf / leafmotor / leafbike high efficiency 1500w motor

Love to see tort reform, but it's probably never going to happen. Whoever heard of someone getting $200 million for using talcum powder? Relative to e-bikes, there's no insurance or licensing requirement for Class 1, 2 or 3 which is the same as for "non-e" bicyclists. This is the law in CA as well a...
by 2old
Sep 09 2020 9:40am
Forum: Motor Technology
Topic: Leaf / leafmotor / leafbike high efficiency 1500w motor
Replies: 1777
Views: 234942

Re: Leaf / leafmotor / leafbike high efficiency 1500w motor

John in CR wrote:
Sep 08 2020 12:50pm
It's not a curse. It's a scam.
No difference. It's necessary if one has assets The alternatives are not using vehicles (impossible in socal) or leaving the area/country. Neither is palatable to me. Of course, it could be legislated; fat chance!
by 2old
Sep 08 2020 10:38am
Forum: Motor Technology
Topic: Leaf / leafmotor / leafbike high efficiency 1500w motor
Replies: 1777
Views: 234942

Re: Leaf / leafmotor / leafbike high efficiency 1500w motor

The US system seems fair to me. E-bikes that are within specified limits don't need insurance or license. Those limits, basically 20 mph on bike paths (I know it's possible to go much faster on a pedal bike) and 28 mph in bike lanes contiguous with roads, are reasonable. Insurance is a curse the res...
by 2old
Sep 07 2020 7:15am
Forum: E-Bike Reviews & Testing
Topic: good/bad experiences with AliExpress 'Panasonic' batteries ?
Replies: 3
Views: 392

Re: good/bad experiences with AliExpress 'Panasonic' batteries ?

I had good luck with ebay (Unit Pack Power); 36V, 10 ah battery was $184 and arrived in a couple of weeks packaged nicely, assembled well and with good (AFAICT) cells.
by 2old
Aug 31 2020 8:03pm
Forum: E-Bike Non-hub Motor Drives
Topic: Bafang mid drive won't fit, any other options?
Replies: 7
Views: 482

Re: Bafang mid drive won't fit, any other options?

You might try to contact Paul Daniel at Revel Propulsion since his system uses a regular bottom bracket and he's amenable to manufacturing custom mounting hardware.
by 2old
Aug 31 2020 12:53pm
Forum: E-Bike General Discussion
Topic: What will it take to make ebikes, More mainstream ?
Replies: 173
Views: 15742

Re: What will it take to make ebikes, More mainstream ?

In socal, it changed about as much as possible because the bike shops are out of (reasonably priced) stock and have a month backlog for service.