What happened to the FH/RH154 sm. DD motor?

Get all your technical information about electric bikes here.
Post Reply
User avatar
motomech
100 MW
100 MW
Posts: 2885
Joined: Sep 11, 2010 12:21 am
Location: Tucson Az.

What happened to the FH/RH154 sm. DD motor?

Post by motomech » Jan 05, 2017 12:31 am

I think it was possibly developed by Nine Continent and was offered by some major retailers, like Grin, Electric bike and Whoosh, in both motor and completed Ebike form during a brief period between 2009 and 2012.
It is a small, 3.5 Kg. direct drive motor in the 300 to 500 Watt range, available in 4 winds.
It seems to have fallen out of favor, as it has been dropped by the above three retailers, but is still on the Nine Continents site.
http://www.9continent.com/nkt/products_show.asp?id=106
I don't see it many other places, just a few vague Alibaba want-a-be sites.
Then there is this mysterious You Tube Vid;
https://www.youtube.com/watch?v=9zTQb8ZHUE8
What is he doing? Trying different phase/hall combos w/a switching box?
Motomech

'03 Rocky Mountain Edge 2WD 260 Q100H frt and Ezee V1 rear 2 Elifebike 20A & 25A 9-FET controllers 12S/20Ah Multistar Lipo rear 5Ah Turnigy frt Luna Cyclops Extra lite Alex 24DM rims, 2.4 Holly Rollers run ghetto tubeless. 25 mph. Mean Well HLG-320H-48A
https://endless-sphere.com/forums/viewt ... =3&t=83430
'07 GT Idive 4 4.0, Q100C 201 12S LiPoly elifebike 9-FET 17A controller. 20 MPH.
https://endless-sphere.com/forums/viewt ... 8#p1237928

User avatar
Samd
1.21 GW
1.21 GW
Posts: 3829
Joined: Jun 28, 2011 11:08 pm
Location: Ballarat, AU
Contact:

Re: What happened to the FH/RH154 sm. DD motor?

Post by Samd » Jan 05, 2017 3:22 am

They still make it.


Sent from my iPhone using Tapatalk
http://ballaratebikes.com/

ImageImageImage
"Knowledge is knowing that a tomato is a fruit. Wisdom is knowing that a 165mm rear shock can't deliver 220mm of rear swingarm travel." - Oprah Winfrey.

User avatar
teslanv
100 MW
100 MW
Posts: 2813
Joined: Nov 03, 2013 8:42 pm
Location: Bellevue, WA - USA
Contact:

Re: What happened to the FH/RH154 sm. DD motor?

Post by teslanv » Jan 17, 2017 4:20 pm

I bought one as a sample from 9C last month.

My intent is to set it up as a front hub on a Mid Drive bike, with the idea that I'll use it as a 2WD set-up with the benefit of having regen braking. And the smaller lighter size will keep the overall weight down.

Weight on the bare front hub motor is 4.77 Kg.

The one I ordered was 9.3 Kv with a phase resistance of about 0.440 Ohms. I'd guess ~500W (~10A) will be it's realistic power limit.
I build custom ebikes.
http://www.westcoastelectrics.com
West Coast Electric Cycles
Bellevue, WA
USA

LewTwo
100 kW
100 kW
Posts: 1004
Joined: Apr 08, 2014 4:46 pm
Location: Houston, Texas
Contact:

Re: What happened to the FH/RH154 sm. DD motor?

Post by LewTwo » Jan 18, 2017 5:48 am

motomech wrote:Then there is this mysterious You Tube Vid;
https://www.youtube.com/watch?v=9zTQb8ZHUE8
What is he doing?
New concept for a hand dryer ??? :lol:
The more I learn the more obvious the immensity of my ignorance becomes.
Weight Wennie E-Bike https://endless-sphere.com/forums/viewt ... 3#p1173723
Shaft Drive Grocery Getter https://endless-sphere.com/forums/viewt ... =6&t=90718
...and thanks to Justin!

audioecology
1 µW
1 µW
Posts: 2
Joined: Sep 02, 2014 5:45 pm

Re: What happened to the FH/RH154 sm. DD motor?

Post by audioecology » Dec 06, 2017 6:56 am

teslanv wrote:
Jan 17, 2017 4:20 pm
I bought one as a sample from 9C last month.

My intent is to set it up as a front hub on a Mid Drive bike, with the idea that I'll use it as a 2WD set-up with the benefit of having regen braking. And the smaller lighter size will keep the overall weight down.

Weight on the bare front hub motor is 4.77 Kg.

The one I ordered was 9.3 Kv with a phase resistance of about 0.440 Ohms. I'd guess ~500W (~10A) will be it's realistic power limit.
What are your experiences with the small 9-C motor? Would you recommend it? So the motor is not actually 3.8kg but in fact closer to 4.8kg? That's a big difference!

I'm trying to weigh up that and the Crystalyte G series as a lightweight hub motor asist for my cargo bike.

I appreciate any feedback on that, and if you by any chance have any experience with the Clyte, it would be amazing to hear about that :)

User avatar
teslanv
100 MW
100 MW
Posts: 2813
Joined: Nov 03, 2013 8:42 pm
Location: Bellevue, WA - USA
Contact:

Re: What happened to the FH/RH154 sm. DD motor?

Post by teslanv » Dec 06, 2017 8:20 am

Actually, I have not yet gotten around to mounting it on a bike yet. I should do that soon, though. :wink:
I build custom ebikes.
http://www.westcoastelectrics.com
West Coast Electric Cycles
Bellevue, WA
USA

Post Reply