Search found 503 matches

by Tommm
Aug 19 2019 4:33pm
Forum: E-Bike General Discussion
Topic: Cyclone 4kw
Replies: 5
Views: 162

Re: Cyclone 4kw

The internal gearbox is 6:1 (I have only gearbox). Without gearbox and 72/11= 6.5 (he has only chain). The 4kw motor will net you about 35mph and loads of torque with 8-9x total reduction, for offroad 30mph and 10x reduction is well enough. So after the 6 or 6.5 you only need a 30/32t front chainrin...
by Tommm
Aug 19 2019 2:46pm
Forum: E-Bike General Discussion
Topic: Cyclone 4kw
Replies: 5
Views: 162

Re: Cyclone 4kw

You could do what this guy did and forget the whole gearbox. I have a similar setup with the coaxial, single stage is fine on the 4kw.

viewtopic.php?f=28&t=69867&p=1490202#p1490193
by Tommm
Aug 19 2019 4:57am
Forum: E-Bike Non-hub Motor Drives
Topic: new cyclone 3000 w mid-drive kit?
Replies: 3181
Views: 350122

Re: new cyclone 3000 w mid-drive kit?

Very good, I guess the cooling gets better too that way. I will go as far as saying this is the way the cyclones should have been sold from the start. You don't need 2 stages for this motor at all.
by Tommm
Aug 18 2019 4:49pm
Forum: E-Bike Technical
Topic: How to limit the power of a controller on-the-go ?
Replies: 6
Views: 172

Re: How to limit the power of a controller on-the-go ?

Well, to be honest with you, I planned to do that and what I actually wanted to have is a "secret" switch to flip just in case I am being pulled over and they test the bike on a dynamometer but I wasn't sure if I am allowed to ask that... Envoyé de mon ONEPLUS A5010 en utilisant Tapatalk And anothe...
by Tommm
Aug 18 2019 10:28am
Forum: E-Bike Technical
Topic: How to limit the power of a controller on-the-go ?
Replies: 6
Views: 172

Re: How to limit the power of a controller on-the-go ?

3 speed switch, sab should have them. You might be able to program it to a very low power output, just enough to reach 25kmh.
by Tommm
Aug 18 2019 4:24am
Forum: E-Bike Technical
Topic: Anybody running more than 150 PSI in DNM USD 8S Fork?
Replies: 11
Views: 234

Re: Anybody running more than 150 PSI in DNM USD 8S Fork?

Why are you buying the crapest bike fork in the world then putting an enourmous effort to make it half usable, just get a used/clearance good one for same price or cheaper.
by Tommm
Aug 17 2019 7:00pm
Forum: E-Bike General Discussion
Topic: Check this out! BB stuck in frame of a fancy road bike
Replies: 2
Views: 147

Re: Check this out! BB stuck in frame of a fancy road bike

Yes, and he made some measurements, cannondale were the most off on average, total crap brand.
by Tommm
Aug 17 2019 6:57pm
Forum: E-Bike General Discussion
Topic: Chinese pack + new cells
Replies: 13
Views: 249

Re: Chinese pack + new cells

Terrible idea to mix and match cells in the same pack, even if the actual stats (not the advertised ones) match, they will still age differently. If you can't afford it to go out in a blaze, just don't do it. Make another pack with the same voltage (doesn't have to be the same capacity), and paralle...
by Tommm
Aug 15 2019 1:47pm
Forum: E-Bike Non-hub Motor Drives
Topic: CYC x1 Pro on 2014 Giant XTC Advanced+ BB92 w/ Adapter?
Replies: 10
Views: 369

Re: CYC x1 Pro on 2014 Giant XTC Advanced+ BB92 w/ Adapter?

Bigwheel wrote:
Aug 15 2019 1:00pm
Any word on how much the CYC X-1 weighs?
Similar to a bbs02 (including outer reduction), both including cranks/display/throttle.
by Tommm
Aug 11 2019 2:04pm
Forum: E-Bike Non-hub Motor Drives
Topic: NO PAS on Cyclone 3k Mid Drive then? :-(
Replies: 7
Views: 180

Re: NO PAS on Cyclone 3k Mid Drive then? :-(

The original cyclone controller (yuyangking) has a joke for pas. It is either off or full throttle(!). So you don't want it anyway.
by Tommm
Aug 10 2019 3:39pm
Forum: E-Bike Non-hub Motor Drives
Topic: CYC x1 Pro on 2014 Giant XTC Advanced+ BB92 w/ Adapter?
Replies: 10
Views: 369

Re: CYC x1 Pro on 2014 Giant XTC Advanced+ BB92 w/ Adapter?

SteelWolf wrote:
Aug 10 2019 3:05pm
That is great news! Did they tell you that? Is there any info posted anywhere online? Thanks so much! :D
https://www.facebook.com/groups/4075764 ... 9002141025
by Tommm
Aug 10 2019 4:24am
Forum: E-Bike Non-hub Motor Drives
Topic: CYC x1 Pro on 2014 Giant XTC Advanced+ BB92 w/ Adapter?
Replies: 10
Views: 369

Re: CYC x1 Pro on 2014 Giant XTC Advanced+ BB92 w/ Adapter?

They will be coming out with bb92 in a month or so. Or use adapter. But for you it is better to wait. I have bb107 and that will only be out in 2-3 months so I will be using that adapter in the meantime.
by Tommm
Aug 09 2019 2:59pm
Forum: E-Bike Non-hub Motor Drives
Topic: How to get more torque?
Replies: 17
Views: 532

Re: How to get more torque?

Yes, its Nucular controller with display. Installed few day ago. Very nice peace of russian tech. :) On my bike going with 18s lipo, 73,7V full charge, 150A battery and 250A phase setting. And less than 30kg weight. With bike chain and derailleur. Chain on this is OK for cca 2000-3000km. So I can c...
by Tommm
Aug 09 2019 2:06am
Forum: E-Bike General Discussion
Topic: Carteret NJ Police get the E- Grin
Replies: 7
Views: 220

Re: Carteret NJ Police get the E- Grin

One rule for me, another for thee.


These bikes look like bafang ultras or clones. They might be limited to 50mph, but will only get close to it on a big downhill.
by Tommm
Aug 07 2019 3:43pm
Forum: E-Bike Non-hub Motor Drives
Topic: new cyclone 3000 w mid-drive kit?
Replies: 3181
Views: 350122

Re: new cyclone 3000 w mid-drive kit?

Brazilian talking to the automatic translator, strange things may appear. You may need to look not for the maximum power of the motor, but for voltage, and especially the maximum current. Since power is the relationship between voltage and current. First it is interesting to find the maximum voltag...
by Tommm
Aug 04 2019 4:17pm
Forum: E-Bike Non-hub Motor Drives
Topic: Mid drive using hub motor
Replies: 20
Views: 787

Re: Mid drive using hub motor

Never knew those existed but my new build is definitely going to use one of those. Do you have any experience using one of those motors built into the swingarm? Yes, I have the 4(4.8)kw coaxial, it spins 750 at 72v, about 90kmh(55mph) with a 1:1 ratio to the rear which is a bit tall. You need to pa...
by Tommm
Aug 04 2019 3:11pm
Forum: E-Bike General Discussion
Topic: Cyclone 4kw
Replies: 5
Views: 162

Re: Cyclone parts missing - gear reduction to motor bolts, freewheel motor gear

That looks like the 4kw motor, not a 3kw one, the specs on it say so. The 4kw motor can take at least 6kw peak with 72v, but cyclones in general are not great shedding built up heat. Not sure about the thread but you could try some bolt sizes into the bottom holes, then order the long versions. Afai...
by Tommm
Aug 03 2019 5:23pm
Forum: E-Bike General Discussion
Topic: What is a 72v 25ah cut off voltage ?
Replies: 6
Views: 157

Re: What is a 72v 25ah cut off voltage ?

2.8 under load (56v), 3.0 resting (60v).
by Tommm
Jul 30 2019 4:58pm
Forum: E-Bike General Discussion
Topic: Ebike MTB racers, how fast are you?
Replies: 16
Views: 508

Re: Ebike MTB racers, how fast are you?

DH is a totally different ballgame. Building an EMTB just as a "self shuttling" DH bike is very tempting I must admit and could be much lighter than one you'd expect to blast uphill at 30mph+. However I prefer to have the power even though I'm now on a +65# bike. You can have both, exactly what I'm...
by Tommm
Jul 29 2019 3:14pm
Forum: E-Bike General Discussion
Topic: Ebike MTB racers, how fast are you?
Replies: 16
Views: 508

Re: Ebike MTB racers, how fast are you?

Who cares about times. If I can have more fun on trails going 20mph than 30mph, I will be going 20mph all day.
by Tommm
Jul 29 2019 11:14am
Forum: E-Bike General Discussion
Topic: surron bicycle with qs205 middrive
Replies: 50
Views: 2745

Re: surron bicycle with qs205 middrive

My friend, the noise comes from the square wave controller and the chain drive.
If you use chain drive from your hub, it will be louder and heavier than a belt drive sur ron.
by Tommm
Jul 29 2019 10:39am
Forum: E-Bike General Discussion
Topic: Where to buy MXUS in EU?
Replies: 11
Views: 377

Re: Where to buy MXUS in EU?

https://www.ebikeparts.at/catalogue/24- ... -turbo_140

They have stock or backorder every T count motor. You have to write them.
by Tommm
Jul 28 2019 7:46am
Forum: E-Bike Non-hub Motor Drives
Topic: GNG / CYC X1 Pro 3000w
Replies: 392
Views: 38851

Re: GNG / CYC X1 Pro 3000w

CYC wrote me field weakening might come as a software update to the 72v controller, no idea if there is any intent or truth to it...
by Tommm
Jul 28 2019 4:35am
Forum: E-Bike Technical
Topic: upgrading my controller
Replies: 9
Views: 333

Re: upgrading my controller

flat tire wrote:
Jul 28 2019 3:35am
To upgrade you throw those things in the trash.
Hahaha.

If you want to upgrade, ask on here BEFORE you buy something.
by Tommm
Jul 26 2019 5:18pm
Forum: E-Bike General Discussion
Topic: Ebike anti-theft, GPS and motion alarms, suggestions?
Replies: 7
Views: 409

Re: Ebike anti-theft, GPS and motion alarms, suggestions?

I am considering adding "Spark Nano 7, 4G Micro GPS Tracker" to my e-bike. There will be a recurring cost for the SIM card. Cheapest I found works out to $4.00 a month for text and data on 4G network. It is small, but what is the battery life? It is strange it is not there in the listing. If it is ...