Search found 770 matches

by PRW
Oct 20 2018 1:15pm
Forum: Items for Sale - Used
Topic: (SOLD) - Kaffenback with Mac 10T for sale - Sunnyvale, CA - $1200
Replies: 2
Views: 451

(SOLD) - Kaffenback with Mac 10T for sale - Sunnyvale, CA - $1200

NOW SOLD Before I drop this to $1200 on Craigslist - does anyone on ES want it at that price? https://sfbay.craigslist.org/sby/bik/d/electric-cyclocross-bike-700c/6722694002.html kaffenback.jpg bicycle type: cyclocross brake type: disc (hydraulic) condition: excellent electric assist: pedal assist ...
by PRW
Oct 19 2018 2:54pm
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 4571
Views: 475120

Re: Sur-Ron - New Mid drive Bike

looking at the AJP PR3 - it has a seat height of only 33 inches. In that case, what height is the Sur-Ron's seat?
by PRW
Oct 18 2018 9:50am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Alta Motors Redshift
Replies: 125
Views: 12248

Re: Alta Motors Redshift

ha - so Alta has ceased operations https://www.asphaltandrubber.com/news/a ... perations/
Hopefully they recover!
by PRW
Oct 13 2018 9:40pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Alta Motors Redshift
Replies: 125
Views: 12248

Re: Alta Motors Redshift

congratulations, Rix! Looks great...
While researching the price, I found this review - very positive.
https://www.cyclenews.com/2018/08/artic ... mpression/
by PRW
Oct 12 2018 5:51pm
Forum: E-Bike Non-hub Motor Drives
Topic: LMX 64 : Freeride Ebike with dual drive and torque sensor
Replies: 243
Views: 28774

Re: LMX 64 : Freeride Ebike with dual drive and torque sensor

Rube wrote:
Oct 12 2018 5:29pm
Congratulations on achieving your goals. In the preorder offer, can you please consider supplying a small batch of developer kits? For example, supply frame only with motor, rear hub, and drive sprocket. Might help those that want to support LMX but struggle with the full cost of 4583€.
+1
by PRW
Oct 10 2018 12:34pm
Forum: E-Bike Technical
Topic: 2017 Giant Glory 1 with BBSHD
Replies: 17
Views: 2529

Re: 2017 Giant Glory 1 with BBSHD

where's the battery pics?
by PRW
Oct 09 2018 9:57pm
Forum: E-Bike Non-hub Motor Drives
Topic: FUTR Beta with Lightning Rods Mid Drive
Replies: 76
Views: 12606

Re: FUTR Beta with Lightning Rods Mid Drive

PRW what are your thought on the middrive two months later? Does your Phasor hub bike exel in any way or do you just ride this now? the middrive/Beta is great on tight trails, repeated steep hill climbs with tight corners and difficult lines - not only because of the middrive, but because the Beta ...
by PRW
Oct 09 2018 11:34am
Forum: E-Bike Non-hub Motor Drives
Topic: FUTR Beta with Lightning Rods Mid Drive
Replies: 76
Views: 12606

Re: FUTR Beta with Lightning Rods Mid Drive

Volts wrote:
Oct 09 2018 9:55am
Can this frame fit lipos?
yes, have a look through this thread - quite a few have used lipos. viewtopic.php?f=6&t=71666
Hyena, Rix, Kepler...
by PRW
Sep 24 2018 1:39pm
Forum: E-Bike General Discussion
Topic: Voltage drop vs AH
Replies: 13
Views: 822

Re: Voltage drop vs AH

thanks, docw009 and markz.
by PRW
Sep 24 2018 1:35pm
Forum: E-Bike General Discussion
Topic: Voltage drop vs AH
Replies: 13
Views: 822

Re: Voltage drop vs AH

Samsung INR18650-30Q Graph.png 53.8V / 14= 3.84V Assuming the voltage measurement were taken at rest. So from the graph, using the top line, it looks like about 1.1Ahr per parallel cell x 7p = 7.7Ahr used. This is going to be a very crude estimate as the voltage depends on discharge current, temper...
by PRW
Sep 24 2018 10:35am
Forum: E-Bike General Discussion
Topic: Voltage drop vs AH
Replies: 13
Views: 822

Voltage drop vs AH

So... can you calculate amp hours used from the starting and ending voltage on a trip?
For example from yesterday, my wife did 34.3km (21.3 miles) with a 14S7P 30Q battery, BBSHD. Starting voltage was 57.4, ending 53.8.
How do you turn this info into ah used?
by PRW
Sep 19 2018 3:53pm
Forum: E-Bike Reviews & Testing
Topic: Grin Phase Runner / CA3 and BBSHD
Replies: 165
Views: 38974

Re: Grin Phase Runner / CA3 and BBSHD

excellent, thanks for the info, Barent!
by PRW
Sep 19 2018 3:22pm
Forum: E-Bike Reviews & Testing
Topic: Grin Phase Runner / CA3 and BBSHD
Replies: 165
Views: 38974

Re: Grin Phase Runner / CA3 and BBSHD

teslanv wrote:
Sep 19 2018 2:47pm
Camo Norco 01.jpg
looks very good, Barent!
Couple of questions:
1. Is that a Norco Atomik?
2. What size battery is that/ how is it attached?
3. Seeing as how you have made it all work - would you sell BBSHD/ Phaserunner/ battery all sorted as a "kit"?
by PRW
Sep 03 2018 10:16pm
Forum: E-Bike Non-hub Motor Drives
Topic: Surly Big Fat Dummy with L-R Big Block Mid Drive
Replies: 80
Views: 9533

Re: Surly Big Fat Dummy with L-R Big Block Mid Drive

mechanistic wrote:
Sep 03 2018 10:00pm
10-4 -- solid choice. Another thing occurred to me - I've had the best results using brake cable housing, as opposed to shift cable housing. Probably common knowledge, but JIC....

Best,

Erik
didn't know about the brake cable housing - thanks!
by PRW
Sep 03 2018 3:43pm
Forum: Items for Sale - New
Topic: NuVinci N171 Developers kit - Sunnyvale, CA
Replies: 11
Views: 1190

Re: NuVinci N171 Developers kit - Sunnyvale, CA

price dropped to $200 each
by PRW
Sep 01 2018 11:05pm
Forum: Items for Sale - New
Topic: FS Crystalyte H4065, controller $800 CA, USA
Replies: 0
Views: 413

FS Crystalyte H4065, controller $800 CA, USA

I have a H4065 motor laced into a 26" MTX 39 rim, Crystalyte 72v 60A controller, throttle, 3 speed switch (all from Hyena). Never used.

Price plus postage if not collected from Sunnyvale, CA
IMG_3673.JPG
IMG_3673.JPG (102.45 KiB) Viewed 412 times
IMG_3674.JPG
IMG_3674.JPG (110.74 KiB) Viewed 412 times
by PRW
Sep 01 2018 9:21pm
Forum: E-Bike Non-hub Motor Drives
Topic: Surly Big Fat Dummy with L-R Big Block Mid Drive
Replies: 80
Views: 9533

Re: Surly Big Fat Dummy with L-R Big Block Mid Drive

Hi Peter, I was curious which shifter you were using. I've come full circle back to the "light" Rohloff shifter. I tried the Gebla Rohbox, with converted SRAM X-9 triggers. The trigger actuation effort was really high in my application. Shift effort might be lower with shorter cable runs than possi...
by PRW
Aug 31 2018 10:09pm
Forum: E-Bike Non-hub Motor Drives
Topic: Surly Big Fat Dummy with L-R Big Block Mid Drive
Replies: 80
Views: 9533

Re: Surly Big Fat Dummy with L-R Big Block Mid Drive

another thing that occurred to me about the Rohloffs: I've broken two of the 13T cogs. new on top, worn (crack @ ~10:00): http://mechanistic.com/_ES_/_pics_/MVIMG_20180203_080044.jpg one on top of the other to show wear (crack @ ~1:00): http://mechanistic.com/_ES_/_pics_/MVIMG_20180203_080109.jpg I...
by PRW
Aug 31 2018 11:49am
Forum: E-Bike Non-hub Motor Drives
Topic: Surly Big Fat Dummy with L-R Big Block Mid Drive
Replies: 80
Views: 9533

Re: Surly Big Fat Dummy with L-R Big Block Mid Drive

wow, those are two really different bikes! I'm curious what the deciding factor is between the two? I'm sure you already know, but JIC: Neil @ https://www.cyclemonkey.com/ is an amazing resource. I've found this online tool really helpful - http://www.gear-calculator.com/. It has a Rohloff preset, ...
by PRW
Aug 30 2018 3:46pm
Forum: E-Bike Non-hub Motor Drives
Topic: Surly Big Fat Dummy with L-R Big Block Mid Drive
Replies: 80
Views: 9533

Re: Surly Big Fat Dummy with L-R Big Block Mid Drive

<edit: I just noticed that somehow only the last sentence in the original reply posted...I fumble-fingered something, I'm sure :roll: ) such a neat integrated build - well done, Mike, and congratulations, Erik! Hi PRW, thanks! this thing is scary cool! The Rohloffs have been great! My first one on ...
by PRW
Aug 27 2018 4:41pm
Forum: E-Bike Non-hub Motor Drives
Topic: Surly Big Fat Dummy with L-R Big Block Mid Drive
Replies: 80
Views: 9533

Re: Surly Big Fat Dummy with L-R Big Block Mid Drive

LightningRods wrote:
Aug 27 2018 4:29pm
5,760 watts with the battery at it's nominal 72V. 6,720 watts HOC.
Wow! :shock: :)
by PRW
Aug 27 2018 4:24pm
Forum: E-Bike Non-hub Motor Drives
Topic: Surly Big Fat Dummy with L-R Big Block Mid Drive
Replies: 80
Views: 9533

Re: Surly Big Fat Dummy with L-R Big Block Mid Drive

such a neat integrated build - well done, Mike, and congratulations, Erik!

How much power is going through the Rohloff?
by PRW
Aug 22 2018 12:48pm
Forum: E-Vehicles General Discussion
Topic: DSRaider electric vehicle
Replies: 3
Views: 7654

Re: DSRaider electric vehicle

fechter wrote:
Aug 22 2018 12:43pm
That looks like fun. Hate to think of what the price is...
for the heavy duty EZRaider 4x4 version - $20,000! http://www.dsraider.com/our-products
Not sure how the EZRaider compares to the DSRaider