Search found 323 matches

by Freddyflatfoot
Jun 28 2020 4:15am
Forum: EBike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1662
Views: 224250

Re: 2 Speed Xiongda hubmotor

I have just ordered this motor from Bonnie. I'm getting the 36v version for a 26" wheel. Bonnie tells me that the sun gear has been through several improvements and is now much stronger. I certainly hope so! I had heard there was an issue when some? motors locking up when they were wheeled back...
by Freddyflatfoot
Nov 20 2011 8:41pm
Forum: EBike Build Threads
Topic: Feddyflatfoot's homemade trike
Replies: 96
Views: 14229

Re: Feddyflatfoot's homemade trike

Ok, it has been a long time since I was on here! I still have the trike, and the current config is the 350w BF motor, laced into a 20" wheel. The 26' wheel lacked the torque I wanted, but did have the speed! Can't even remember the last time I rode her? Although I did lend her to my son when he...
by Freddyflatfoot
Nov 15 2009 4:19am
Forum: Battery Technology
Topic: Ping battery Problem?
Replies: 2
Views: 467

Re: Ping battery Problem?

I gave the issue some thought, and decided to put a short jumper lead between the charge in lead, and the neg side of the battery, effectively bypassing the BMS. The charger, quite obviously, kicked in straight away! Only had it this way for a few minutes, but it was enough! left the battery to char...
by Freddyflatfoot
Nov 14 2009 11:18pm
Forum: EBike Technical
Topic: Typical 'Duct Tape' performance ? / Need more power
Replies: 26
Views: 2447

Re: Typical 'Duct Tape' performance ? / Need more power

Ahah!
Just stumbled on this old thread, after my battery 'died', with two low cells, maybe that was my original problem?
I wonder.
I've e-mailed Ping, so I'll see what he says.
by Freddyflatfoot
Nov 14 2009 9:24pm
Forum: Battery Technology
Topic: Ping battery Problem?
Replies: 2
Views: 467

Ping battery Problem?

Ok, first things first. I think I have been away from this forum for waaayy too long! Got into recumbents, and have been having a blast doing long distance Audax rides on a lightweight two wheel low racer. So, my electric trike has had precious little use, and in fact has been in storage for, oh, ma...
by Freddyflatfoot
Nov 09 2008 4:10pm
Forum: EBike General Discussion
Topic: Help finding a solution to Bafang gear stripping
Replies: 328
Views: 52969

Re: Help finding a solution to Bafang gear stripping

I'll keep following this thread with interest! At this point, I am still more than happy with my Bafang @ 36v. As it also an overvolted motor anyway, up from 24v, the performance is still respectable in hybrid mode (me!) I have done over 3500 k's on mine, and its still going strong. However, I am co...
by Freddyflatfoot
Nov 09 2008 6:25am
Forum: EBike Build Threads
Topic: E-Trike Project
Replies: 587
Views: 96109

Re: E-Trike Project

Thanks for the vid Kim!
Seems to go quite well, plenty fast enough. Will be faster with LiFePo4's!
I hope all that squealing in the vid was the wind in the mic, or was it you squealing with delight? ;)
by Freddyflatfoot
Nov 07 2008 2:35am
Forum: EBike Technical
Topic: drop in top speed due to cold?
Replies: 12
Views: 1415

Re: drop in top speed due to cold?

Hi all, Just been through all this with my Ping pack. Performance did drop off over the winter months, but as the weather is warming up, the performance of my battery is also improving! We still have some cool weather, so I am seeing some variation in performance, but overall, it is much better! So ...
by Freddyflatfoot
Nov 03 2008 6:43pm
Forum: EBike General Discussion
Topic: Building a recumbent bike
Replies: 34
Views: 26821

Re: Building a recumbent bike

There has been a fair bit of discussion on BROL about this design. Apparently the universal joint in the steering is less than ideal. I notice that there is also a mid hub. These have also proved to be less than satisfactory in the power transfer department. There plenty of good designs out there, a...
by Freddyflatfoot
Oct 31 2008 10:26pm
Forum: E-Vehicles General Discussion
Topic: The REAL difference between 30mph and 50mph !
Replies: 22
Views: 6428

Re: The REAL difference between 30mph and 50mph !

Sam whittingham holds the world speed record for a HPV. Yes, it is a streamlined recumbent bike, and he managed 132.5 kph, through a 200 m speed trap at Battle Mountain, in Nevada. FYI, other HPV records broken this year. 1 Hour speed record, ~87.2 kph for a faired recumbent and 49.6 kph for an unfa...
by Freddyflatfoot
Oct 28 2008 8:56pm
Forum: EBike Build Threads
Topic: Voicecoil's red, fully rigid commuter
Replies: 184
Views: 31943

Re: Voicecoil's red, fully rigid commuter

VC,
I would be interested to hear how you like the Bafang at 36v.
I am more than happy to run mine at 36v, but then mine is a 24v model overvolted to 36v!
Cruise speeds above 30 kph are fine for me for my commute, and by keeping the speed down a bit, I also keep a tighter reign on my whr usage.
by Freddyflatfoot
Oct 28 2008 3:45am
Forum: EBike General Discussion
Topic: Building a recumbent bike
Replies: 34
Views: 26821

Re: Building a recumbent bike

Get those wheelchair wheels! Those hubs are ideal for front wheels on a tadpole trike!
12mm axle, and already setup as a stub axle, go for it.
by Freddyflatfoot
Oct 27 2008 10:53am
Forum: EBike General Discussion
Topic: Building a recumbent bike
Replies: 34
Views: 26821

Re: Building a recumbent bike

All I can say, is that be careful building a recumbent bike. It can be addictive! I have built 2 trikes for myself, 1 SWB 'bent, two trikes for my daughter and a friend, and I currently building a fully suspended dual 20" SWB bent, and all in the last year! http://i281.photobucket.com/albums/kk...
by Freddyflatfoot
Oct 27 2008 10:40am
Forum: EBike General Discussion
Topic: How do you cope with the attention your Ebike draws?
Replies: 32
Views: 3131

Re: How do you cope with the attention your Ebike draws?

I get more comments becuase I ride a recumbent trike.
Most don't even realise that is powered, unless I tell them!
by Freddyflatfoot
Oct 23 2008 7:39pm
Forum: EBike General Discussion
Topic: System (U, Motor, Controller) Efficiency
Replies: 118
Views: 65817

Re: System (U, Motor, Controller) Efficiency

1) Efficiency, 8.5-10 Wh/Km 2) Speed, 35 kph cruise, max about 42 kph with pedaling. 3) Gradient, up to 10% for my commute. 4) Pedaling, moderate. 5) Homebuilt tadpole trike 6) bafang rear brushless, geared. 20" wheel. 7) ??? Std, 36v, 14.8 A 8) Ping LiFePo4, 36v/10AHr Just checked my WattsUp ...
by Freddyflatfoot
Oct 23 2008 7:32pm
Forum: EBike General Discussion
Topic: Help finding a solution to Bafang gear stripping
Replies: 328
Views: 52969

Re: Help finding a solution to Bafang gear stripping

I'm gonna keep an eye on all this!
Even though I don't intend to go over 36v at this stage, I might be tempted to add a metal gear, just to improve the longevity and reliability of the gearing system.
Sounds like the one metal gear is a good option!
by Freddyflatfoot
Oct 21 2008 4:44am
Forum: EBike General Discussion
Topic: Tadpole Trike Conversions?
Replies: 14
Views: 2609

Re: Tadpole Trike Conversions?

Not sure about maximum range. So far been 33 miles on a single charge and used a bit over 12 AH in the process. MT I make that about 13 watt hours per mile which is very good. Others seem to report higher consumption, but I guess that keeping the speed down to 18mph (very sensible) accounts for it ...
by Freddyflatfoot
Oct 20 2008 9:40pm
Forum: EBike General Discussion
Topic: Tadpole Trike Conversions?
Replies: 14
Views: 2609

Re: Tadpole Trike Conversions?

I have a homebuilt tadpole, using a Bafang rear motor in a 20" wheel, @36v (original motor voltage 24v) Top speed is 42 kph, cruise between 33-38 kph. Currently have over 3500 k's on the trike. Using a Ping 36v/10 AHr battery, and a ANANDA 14.8A controller. Originally had 36v/10AHr of lead, but...
by Freddyflatfoot
Oct 20 2008 8:38pm
Forum: EBike General Discussion
Topic: Help finding a solution to Bafang gear stripping
Replies: 328
Views: 52969

Re: Help finding a solution to Bafang gear stripping

VC, Just another thought on the amount of power you are using. It maybe be unwise to have that on your front wheel. There have been some nasty stories of front forks not being able to handle the torque. Ar you using any extra torque arms? Personally, if I were trying to power a bike in excess of 150...
by Freddyflatfoot
Oct 20 2008 2:04pm
Forum: EBike Build Threads
Topic: Voicecoil's red, fully rigid commuter
Replies: 184
Views: 31943

Re: Voicecoil's red, fully rigid commuter

VC, I commute on my trike at an average of 28 kph, will cruise at 35 kph, and top speed is 42 kph. And I have over 3500 k's on my trike! I would think that you would get more than satisfactory performance at 48v, or 36v if you were overvolting a 24v motor. And my trike is a tank, weighs somewhere be...
by Freddyflatfoot
Oct 20 2008 5:29am
Forum: EBike Build Threads
Topic: Voicecoil's red, fully rigid commuter
Replies: 184
Views: 31943

Re: Voicecoil's red, fully rigid commuter

VC, I'm not sure which Bafang you are using, but mine is a 24v version, overvolted to 36v. From what I understand, these motors, as is, are good for 48v. I think I have read elsewhere that if you are going to run 72 v on these or other geared motors then 1 gear can be replaced with a metal gear. Thi...
by Freddyflatfoot
Oct 14 2008 12:12pm
Forum: EBike Technical
Topic: My nashbar freewheel remover doesn't work on a BMC hub
Replies: 7
Views: 568

Re: My nashbar freewheel remover doesn't work on a BMC hub

Really? I think mine was IceToolz, or something similar, and works fine on my Bafang hub.
Didn't even know it was an issue.
by Freddyflatfoot
Oct 14 2008 2:51am
Forum: Battery Technology
Topic: Ping Reports?
Replies: 6
Views: 1103

Re: Ping Reports?

Just a possible issue with the Ping/duct tape batteries, that I also posted on my Bafang LED issue thread. Seems the performance drops off over the cooler months, but I didn't notice any drop in capacity? I'd be interested to know if anyone else on the forum has noticed anything similar. Rather re-t...
by Freddyflatfoot
Oct 14 2008 2:43am
Forum: EBike Technical
Topic: Bafang throttle LED issue.
Replies: 4
Views: 555

Re: Bafang throttle LED issue.

Just thought I'd give an update on this issue, as it may indicate that I do indeeed have a problem! Over the last few days, the green LED has started coming on again, and is actually more reluctant to go off! :) In conjunction with this, my power usage seems to have dropped off! I'm actually using b...
by Freddyflatfoot
Oct 10 2008 10:18pm
Forum: Battery Technology
Topic: Ping Reports?
Replies: 6
Views: 1103

Re: Ping Reports?

Ok, thought I'd add an estimate of my battery usage. I have been journaling all my bike rides since the end of May. Turns out, since then, until now, I have used my assist trike 77 times (charge cycles) That could be single trips, or combined return commutes. Based on that usage, I estimated a furth...