Search found 31 matches

by Mclewis1
Nov 30 2021 9:34am
Forum: EBike General Discussion
Topic: Looking for a trustworthy front hub motor
Replies: 13
Views: 250

Re: Looking for a trustworthy front hub motor

So, I'm looking for a front hub motor, 36 spoke, fits in 100mm dropouts, and not going to melt at 60V. Targeting a maximum speed of 20mph. Anyone have any recommendations for a motor and a controller? I've been using a Shengyi SX-1 (standard wind geared front hub) from Grin with a BaseRunner contro...
by Mclewis1
Nov 23 2021 11:54am
Forum: Bike Mechanical & Structural
Topic: 5 k miles check up.
Replies: 21
Views: 371

Re: 5 k miles check up.

Great pics, it's nice to see these as they can be very educational to other folks. I can't add to the discussion about the torque arms but I do have a suggestion since you are interested in maintaining that aluminum frame. There is some minor damage around the openings and I'd gently sand that surfa...
by Mclewis1
Oct 27 2021 11:07am
Forum: EBike Technical
Topic: CA3 capable of customized display?
Replies: 4
Views: 186

Re: CA3 capable of customized display?

While the timing won't help the OP with his current project it appears that Grin is moving towards also offering setups that are a bit simpler than those that include the Cycle Analyst. The new BaseRunner 4 wiring looks like it will integrate better into setups that are popular on commercial ebikes ...
by Mclewis1
Oct 20 2021 11:11am
Forum: EBike General Discussion
Topic: Just more than a bike (low power / low consumption)
Replies: 35
Views: 1098

Re: Just more than a bike (low power / low consumption)

In general, once you are talking hub motors, the best bet is to have lots of power up the hill. This gets you up with max efficiency if you ride up the hill about 15 mph. Not fast enough for wasting much on aero, not too fast to pedal hard to help, and not too slow so the motor makes heat. Quick up...
by Mclewis1
Oct 17 2021 11:55am
Forum: EBike General Discussion
Topic: Just more than a bike (low power / low consumption)
Replies: 35
Views: 1098

Re: Just more than a bike (low power / low consumption)

No, larger wheels don't simply speed up the motor ... but the question is about the matching of faster wind geared hub motors with smaller wheels and slower or regular wind motors with larger ones. We've done this for years for various reasons. I'd like to find out if there may be a benefit for chan...
by Mclewis1
Oct 17 2021 8:29am
Forum: EBike General Discussion
Topic: Just more than a bike (low power / low consumption)
Replies: 35
Views: 1098

Re: Just more than a bike (low power / low consumption)

Dan, You've raised a question I've had for a while. It's been discussed back and forth within some of the other discussions but there doesn't seem to be much specifically on the subject and difficult to search on. So a question or discussion for everyone ... Fast wind vs. slow wind hub motor cores (...
by Mclewis1
Oct 15 2021 8:52pm
Forum: EBike General Discussion
Topic: Just more than a bike (low power / low consumption)
Replies: 35
Views: 1098

Re: Just more than a bike (low power / low consumption)

Well as long as you folks are talking " low power ", you do realize that small front wheel geared hubs tend to work well as well. Less encumbrance with various gear systems as well :o Ah yup, sure do. The city bike I mentioned in the post above is a front hub setup. It's worked out very w...
by Mclewis1
Oct 15 2021 1:10pm
Forum: EBike General Discussion
Topic: Just more than a bike (low power / low consumption)
Replies: 35
Views: 1098

Re: Just more than a bike (low power / low consumption)

I have 2 bikes, each with ~500w Shengyi SX geared hub motors, BaseRunner controllers, CA3s (same setup except for wheel size), cadence PAS + throttles, and a 52v 14 amp/hr (750w) battery. I'm 6' 2" and around 210lbs, but older (62) :) Normal riding is done with about 200w of assist (PAS level 2...
by Mclewis1
Oct 13 2021 9:36am
Forum: EBike General Discussion
Topic: Shortage - Where to find kits these days?
Replies: 2
Views: 512

Re: Shortage - Where to find kits these days?

Grin Technologies in Vancouver BC www.ebikes.ca appears to have g310, some g360, and Shengyi SX hub motors in stock.
by Mclewis1
Oct 02 2021 9:43am
Forum: EBike Technical
Topic: Charger question
Replies: 15
Views: 277

Re: Charger question

Output of 58.8v at 5 amps? = ~300w I'd add 50% for safety, so 450w. That's comfortably within the specs for any 3 prong NEMA 5-15 plug. If it were me I'd verify the pinouts of the existing plug (ground, neutral, and hot), cut it off, strip back the wires, go down to my local hardware store and get a...
by Mclewis1
Sep 19 2021 8:55am
Forum: EBike General Discussion
Topic: Setting up a GMAC for "250W nominal power" ?
Replies: 48
Views: 1579

Re: Seting up a GMAC for "250W nominal power" ?

With a self imposed 250-500w limitation managed by the CA3 I just don't see the extra capabilities of the GMAC being a benefit. So unless there was some very specific hardware requirement for the GMAC (locked clutch, external torque arm, 10mm round axles, higher power potential, L10 connector, etc.)...
by Mclewis1
Sep 12 2021 6:41pm
Forum: EBike Troubleshooting
Topic: CA3 - Baserunner: Help with PID tuning for PAS only
Replies: 22
Views: 711

Re: CA3 - Baserunner: Help with PID tuning for PAS only

My guess would be that just slowing the power ramp up would initially get you in the ball park. Would you mind sharing the exact parameter(s) you change to achieve this? I'd start with PAS ramp up rate under the Throttle Out Settings in the CA Setup Utility which is also referred to as ThrO->PAS Ra...
by Mclewis1
Sep 12 2021 6:11pm
Forum: EBike General Discussion
Topic: Hailong pack questions, sourcing
Replies: 39
Views: 957

Re: Hailong pack questions, sourcing

:thumb: Thanks folks, that's useful info (something in short supply from many online sources). I had a hunch that the Hailong 3 was different but didn't realize by how much with respect to the mounting base.
by Mclewis1
Sep 12 2021 11:06am
Forum: EBike General Discussion
Topic: Hailong pack questions, sourcing
Replies: 39
Views: 957

Re: Hailong pack questions, sourcing

Is there any definitive info on identifying Hailong 1 (original vs updated) vs. Hailong 3 bases? I know changing out the power connection is pretty straight forward but there doesn't seem to be much around on the specific differences in how the pack attaches to the base. Perhaps things like the numb...
by Mclewis1
Sep 12 2021 10:55am
Forum: EBike Troubleshooting
Topic: CA3 - Baserunner: Help with PID tuning for PAS only
Replies: 22
Views: 711

Re: CA3 - Baserunner: Help with PID tuning for PAS only

While the CA setup parameters are initially a bit confusing the examples (suggested ranges of the settings with descriptions) do help even if you don't understand exactly what each parameter actually does. I wonder if Grin has any guidance specifically for a friction motor setup to give you an effec...
by Mclewis1
Sep 11 2021 8:45am
Forum: EBike Troubleshooting
Topic: CA3 - Baserunner: Help with PID tuning for PAS only
Replies: 22
Views: 711

Re: CA3 - Baserunner: Help with PID tuning for PAS only

I found this of interest since I am on the cusp of purchasing a baserunner, 24 pole pas sensor, CA3 and aux input. I had thought that the components worked seemlessly together. ... Remember that picworthi is trying to limit speed and some overshoot, something that you likely are not going to consid...
by Mclewis1
Sep 09 2021 10:10am
Forum: EBike General Discussion
Topic: Ebike touring and camping
Replies: 74
Views: 2112

Re: Ebike touring and camping

1. Use solar to extend your range (and to charge if nothing else is available.) 2. Ensure your battery(s) are removable and the charger is portable in case you have to take them inside a coffee shop or something to charge them. 3. Carry a long, thin gauge extension cord to charge your bike from out...
by Mclewis1
Sep 01 2021 10:02am
Forum: EBike General Discussion
Topic: Is Litespeed still in business?
Replies: 10
Views: 363

Re: Is Litespeed still in business?

Come on folks it's Lite Speed Bikes LLC .... not Litespeed (or LITESPEED). The later is a long established and well respected manufacturer of Ti framed bikes and not some back room custom ebike battery manufacturer. Not making this distinction is just encouraging the scummy piggybacking on similarly...
by Mclewis1
Aug 07 2021 9:22am
Forum: EBike Technical
Topic: Water-proofing your ebike, post your tips
Replies: 10
Views: 384

Re: Water-proofing your ebike, post your tips

a) fenders - just keeping water (the high pressure spray from the wheels) out of key areas (downtube battery/controller) really helps b) plastic covers for occasional use - split ziplock bag over the display, or a larger form fitting plastic bag over the battery are used only during heavy rain. c) s...
by Mclewis1
Jun 17 2021 7:46pm
Forum: EBike General Discussion
Topic: Motor maximum temps
Replies: 6
Views: 302

Re: Motor maximum temps

With a kit supplied by Grin the Cycle Analyst was preconfigured for the Shengyi SX geared hub motor (a 3kg 500w class motor). The temperature settings were 90C and the power starts to be limited and 130C max (complete overtemp).
by Mclewis1
Jun 17 2021 8:25am
Forum: EBike General Discussion
Topic: Thumb switch for Cycle Analyst
Replies: 9
Views: 235

Re: Thumb switch for Cycle Analyst

If anyone is curious ... on my RTR kit from Grin, the CA came configured so those buttons by default change the preset PAS levels. That appears to be the most obvious use for someone installing a complete or turn key kit.
by Mclewis1
Jun 10 2021 2:54am
Forum: EBike General Discussion
Topic: Help decide between All-Axle and GMAC
Replies: 42
Views: 1255

Re: Help decide between All-Axle and GMAC

"Do you have any more info on Grin alluding to clutch changes in the newer Shengyi's?" No, nothing concrete and in print. Justin has mentioned it to a few folks I've talked to, with the possibility of it coming later in 2021 ... but with all the upheavals who knows. The idea also goes back...
by Mclewis1
Jun 09 2021 9:50am
Forum: EBike General Discussion
Topic: Help decide between All-Axle and GMAC
Replies: 42
Views: 1255

Re: Help decide between All-Axle and GMAC

I've been watching this thread for the inevitable evolution or re assessing of requirements. I can't pretend to offer "you should do this or that" but I'll offer the example of what I've done which sounds very very similar in requirements to what you are looking at. Right off, I'm a big fa...
by Mclewis1
May 04 2021 9:39am
Forum: EBike General Discussion
Topic: E-bike mid-drive motors hardly outperforms hub motors
Replies: 152
Views: 6303

Re: E-bike mid-drive motors hardly outperforms hub motors

For a given performance level on flat ground: Mid drive is potentially lighter. ... How? If a mid drive contains some additional gearing (vs. a geared hub motor), and additional material in the housing for mounting plus the weight of the non driven hub which gets replaced in a hub motor setup. The ...
by Mclewis1
Apr 27 2021 8:58am
Forum: EBike General Discussion
Topic: Cycle Analyst - simple mounting bracket
Replies: 4
Views: 260

Re: Cycle Analyst - simple mounting bracket

Handy. Looks a lot like this one: https://endless-sphere.com/forums/viewtopic.php?f=51&t=111141 Thanks for the post. That is indeed the one that inspired me. What I cannot figure out is why I couldn't find it in my earlier searches. This is particularly galling to me because beyond being very c...