Search found 140 matches

by hypertoric_amplituhedron
Mar 29 2019 8:09pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Bacchetta Giro | BBSHD | 14s7p 35E | 500w PAS
Replies: 0
Views: 104

Bacchetta Giro | BBSHD | 14s7p 35E | 500w PAS

Short wheelbase recumbents are totally awesome machines. Fun to ride, conversation starter, head turner, super comfortable, maneuverable, ridiculous aerodynamic efficiency, etc. You get the point. I scored one and I've been having lots of fun riding it around in regular bicycle mode. The bbshd is on...
by hypertoric_amplituhedron
Dec 25 2018 3:36pm
Forum: E-Bike Non-hub Motor Drives
Topic: GNG X1-pro 3000w
Replies: 275
Views: 22971

Re: GNG X1-pro 3000w

And, for those not following their FB page, they will be working on a torque sensor bb for release in ab 4-5 months. It will easily adapt to the 1st batch, they said. Looking forward to that!
by hypertoric_amplituhedron
Dec 23 2018 7:59pm
Forum: E-Bike Non-hub Motor Drives
Topic: GNG X1-pro 3000w
Replies: 275
Views: 22971

Re: GNG X1-pro 3000w

The reduction is the same, but the chain version can fit a larger front chainring, which allows a higher top speed than the gear version.
by hypertoric_amplituhedron
Dec 20 2018 10:33am
Forum: E-Bike Non-hub Motor Drives
Topic: GNG X1-pro 3000w
Replies: 275
Views: 22971

Re: GNG X1-pro 3000w

Did you mean to write 52 volt ( 14s ) or 48 Volt ( 13s ) ? For higher speed and lower leg cadence ... what is the largest front chain ring that this motor will accept ? and Who knows that chain/rear cog number , type of chain ring they are using 8 speed or 9/10 speed ? Nope, 12s = 44.4v nom , 50.4v...
by hypertoric_amplituhedron
Dec 20 2018 12:51am
Forum: E-Bike Non-hub Motor Drives
Topic: GNG X1-pro 3000w
Replies: 275
Views: 22971

Re: GNG X1-pro 3000w

You think that would be a good idea if I'm only using it at 100 rpm at the crank? 120 rpm max? 12s would be perfect for those speeds. Even if I restricted the rpm that low on 20s, wouldn't I be better off going 12s in the long run? The size of the pack is for decent range at 35 mph, a typical cruisi...
by hypertoric_amplituhedron
Dec 19 2018 8:15pm
Forum: E-Bike Non-hub Motor Drives
Topic: GNG X1-pro 3000w
Replies: 275
Views: 22971

Re: GNG X1-pro 3000w

All right, I'm in. I just ordered one, too. I'm going for an efficient dual sport build with 700x28 tires, 12s18p of GA, and using PAS with ab 700~2000w , and keep my cadence around 90-100 rpm (120 max). This will be my first PAS build on a middrive that I can pedal along with. Plus, I recently rode...
by hypertoric_amplituhedron
Dec 17 2018 2:05pm
Forum: E-Bike Non-hub Motor Drives
Topic: GNG X1-pro 3000w
Replies: 275
Views: 22971

Re: GNG X1-pro 3000w

This looks great! But after reading the thread I still can't tell the difference between the gear and chain version. What's the pros and cons of each? I'd say that the geared version is well suited for off-road riding and cargo bikes, with harsher on/off power bursts and higher loads. Whereas the c...
by hypertoric_amplituhedron
Nov 28 2018 7:14pm
Forum: E-Bike General Discussion
Topic: Full suspension semi recumbent for long range
Replies: 28
Views: 1183

Re: Full suspension semi recumbent for long range

I've had good luck with Phil Wood Tenacious lube on freewheels. Drop it on the inside diameter of the lockring by the smallest cog, right where the splines for the tool are. This side works better than the backside where the threads are. Put a good amount, then hold the back end and spin it around a...
by hypertoric_amplituhedron
Nov 20 2018 5:47pm
Forum: E-Bike Non-hub Motor Drives
Topic: GNG X1-pro 3000w
Replies: 275
Views: 22971

Re: GNG X1-pro 3000w

A 54T, ooh, even better. And, you're right, a 12s voltage would be better off for my speed desires. I didn't think about the rpm limiter. That would let me hit 50 mph on a road bike at 130 rpm, lol. Does anyone know if they have a gear sensor for this kit, or will the bbshd type work just as well? O...
by hypertoric_amplituhedron
Nov 20 2018 1:40am
Forum: E-Bike Non-hub Motor Drives
Topic: GNG X1-pro 3000w
Replies: 275
Views: 22971

Re: GNG X1-pro 3000w

Looks like it will be the chain version. A 38T chainring is kinda limiting in top speed, even going to an 11T sprocket. I'm thinking of putting one of these on my e-road bike project, instead of a bbshd. I like the size and power of this thing, where it will probably last for a while at 2000w. I'd h...
by hypertoric_amplituhedron
Nov 20 2018 12:54am
Forum: E-Bike Non-hub Motor Drives
Topic: GNG X1-pro 3000w
Replies: 275
Views: 22971

Re: GNG X1-pro 3000w

Can anyone tell how big of a chainring can fit on the chain drive type? The gear version is restricted to the 38T , because of the (obvious need for the) closer distance, which is the only reason I have to go with the chain version. It looks like it might be a 50T, and a tight fit at that. My main q...
by hypertoric_amplituhedron
Aug 20 2018 9:01pm
Forum: Battery Technology
Topic: Anyone know of a fairly inexpensive 15s li-ion battery charge that can have output voltage adjusted down to 60v or so?
Replies: 6
Views: 320

Re: Anyone know of a fairly inexpensive 15s li-ion battery charge that can have output voltage adjusted down to 60v or s

Also, here's a handful of more options. If you have a 15s 5ah battery, you might want to consider the 14s 2a charger: https://www.aliexpress.com/store/group/14S-to-16S-Li-ion-charger/2344164_510899706.html?spm=2114.12010608.0.0.3a1a5cc0dEwXW8 I have two of their (SZXJR) 24s 9a chargers, and been usi...
by hypertoric_amplituhedron
Aug 20 2018 7:57pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Giant Trance X1 build for MAX range
Replies: 23
Views: 1471

Re: Giant Trance X1 build for MAX range

Well I've been trying to figure out what way I want to go with the battery. I can do two 20s6p packs or a single 20s12p pack. The idea with doing 2 packs is I could shed weight when I didn't need the high capacity and I could shorten my charge time by being able to have both packs charging at the s...
by hypertoric_amplituhedron
Aug 20 2018 7:31pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Raleigh Talus 1 Ebike Build
Replies: 13
Views: 1262

Re: Raleigh Talus 1 Ebike Build

Yes, braking power is very good! It'll launch you forward pretty good with regen maxed out. You'd never expect braking force over time to be a source of hand pain, if your grip and glove game is lacking. As far as handling, it gets very stable at 25, and cruises in a straight line very well. This fr...
by hypertoric_amplituhedron
Aug 12 2018 1:25pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Raleigh Talus 1 Ebike Build
Replies: 13
Views: 1262

Re: Raleigh Talus 1 Ebike Build

Thanks! I knew how I wanted to ride it, and did my homework figuring out the number, type of cells and configuration I needed. I think I can get 180 miles on a charge cruising at 20 mph, which only asks for 3 amps from the pack (27 ah usable). The volts are doing all the work, which is part of the e...
by hypertoric_amplituhedron
Aug 11 2018 3:34pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Raleigh Talus 1 Ebike Build
Replies: 13
Views: 1262

Re: Raleigh Talus 1 Ebike Build

I also ended up going with a WCEC 6T edge 1500w motor, since the ~7.7 Kv was far more appropriate for my 24s voltage. I also use regen on the rear, since I haven't had the caliper mount attached yet. Braking power is very effective from 35-0 mph, when combined with that awesome 4 piston saint calipe...
by hypertoric_amplituhedron
Aug 11 2018 3:17pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Raleigh Talus 1 Ebike Build
Replies: 13
Views: 1262

Re: Raleigh Talus 1 Ebike Build

More pics of the build, plus the current machine to date: https://i.imgur.com/Ua2Y8Nq.jpg https://i.imgur.com/GfkvL8K.jpg https://i.imgur.com/u3ZbFoA.jpg https://i.imgur.com/mTgj1Bh.jpg https://i.imgur.com/jdMEqwN.jpg https://i.imgur.com/BLTX4is.jpg https://i.imgur.com/nHgM216.jpg https://i.imgur.co...
by hypertoric_amplituhedron
Aug 11 2018 1:21pm
Forum: E-Bike Technical
Topic: XPD: open-source keywin e-bike lab replacement
Replies: 593
Views: 116048

Re: XPD: open-source keywin e-bike lab replacement

I have an issue installing python 2.7.1 on a new mac with windows 8 bootcamp. The installer quits prematurely, citing some error that I will update later with a screencap. Python 3.7.0 will install fine, but won't recognize the older files for XPD. So I'm stuck! Anyone have or troubleshot this issue...
by hypertoric_amplituhedron
Aug 11 2018 12:52pm
Forum: Motor Technology
Topic: "Edge" DD hubmotor, 1500W, 35mm, Al core
Replies: 179
Views: 19776

Re: "Edge" DD hubmotor, 1500W, 35mm, Al core

Wcec seems to have something similar to the edge. That's the place to get it for now. I have the 6T (~7.7kv) edge 1500w , running 24s on a 26" MTX39 rim. I'll hit it with 45 amps (4000w) on a WCEC 18fet (for 15-20 sec), and she'll do every bit of +52mph. Trying to ease into the throttle, pulling 25...
by hypertoric_amplituhedron
Jul 31 2018 5:50pm
Forum: E-Bike General Discussion
Topic: Cycle Analyst 2.4 Voltmeter Problem
Replies: 1
Views: 120

Re: Cycle Analyst 2.4 Voltmeter Problem

Well, now I'm thinking it's the controller that got damaged from a few too many volts. Everything is working fine, CA included (fairly certain). Good thing I have an 18fet lying around to slap on it, and upgrade while I'm at it, lol. Gonna need hubsinks and statorade for this baddie...
by hypertoric_amplituhedron
Jul 30 2018 10:55pm
Forum: E-Bike General Discussion
Topic: Cycle Analyst 2.4 Voltmeter Problem
Replies: 1
Views: 120

Cycle Analyst 2.4 Voltmeter Problem

Out riding today, and the voltmeter goes haywire, all over the place, dipping down to 70, 50, 15v , when it was just at 90v. It (the CA) wouldn't power on a few times, then when it did, the voltmeter was 4v off, and it sagged by twice as much as it was supposed to. Using regen, the volts went up to ...
by hypertoric_amplituhedron
Jul 29 2018 11:17am
Forum: Battery Technology
Topic: Fast Charging a 24s11p GA Pack
Replies: 13
Views: 506

Re: Fast Charging a 24s11p GA Pack

No, I know what you meant :) . I assumed you were right, since none of the senior members were correcting you on it. That's always a good litmus test, lol :) But, you know how it goes ... it's nice to find third party confirmation on a technical thing. Plus, it's good to know that I'm treating the c...
by hypertoric_amplituhedron
Jul 28 2018 7:36pm
Forum: Battery Technology
Topic: Fast Charging a 24s11p GA Pack
Replies: 13
Views: 506

Re: Fast Charging a 24s11p GA Pack

Okay, so for what it's worth, someone did actually post the max charge current for a GA cell. It's 3.35a , found here in thunderheart's reviews. I have the Sanyo GA , which also tested over capacity at 3550mah. So, I have no worries now if I slam 18a into the battery.
by hypertoric_amplituhedron
Jul 24 2018 4:13pm
Forum: Battery Technology
Topic: Fast Charging a 24s11p GA Pack
Replies: 13
Views: 506

Re: Fast Charging a 24s11p GA Pack

If you NEED to you can. But charging so fast will kill the pack in 100~200 cycles at best. These are the things I want to know about. I'll only be charging at most 0.3C to 0.4C , which sounds reasonable according to previous replies. I will never (and won't be able to) use 0.5C on this pack. Plus, ...
by hypertoric_amplituhedron
Jul 23 2018 11:59am
Forum: Battery Technology
Topic: Fast Charging a 24s11p GA Pack
Replies: 13
Views: 506

Re: Fast Charging a 24s11p GA Pack

Oh, wow, so even 1800w is doable on 11p? The battery is sealed away in an aluminum box (hard to access), and all of my other GA cells from the order have been used. But it would be good to test one of them, to see what the thermal max is for charging. So, if I can use this much power, what is the sa...