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There was a thread on here about someone wanting to do similar. Azub, HPvelotechnik, Utah Trikes, Hase, ... all now have off road capable e-trikes or quads. The Azub one is in final development stage, shown at this years Spezi, and can be a hand trike or a pedal trike.

The same number of watts as for a normal car headlight bulb outputs ten (10) times more light when fed into a LED... :eek:

Trump tweeted "MAKE FRANCE GREAT AGAIN!" and some bright spark replied "We're on it bro!" with a photo of the French team holding up the World Cup at the end of the game :) I quite liked that.

There will soon be a directive limiting the power of car LED headlights. Being short term blinded by low beam LED headlights is a thing and can last from 30 seconds to a minute! That can cause a lot of damage at 80 km/h on a twisy country road. Until now car headlights have a minimum lux/lumen...

So I pulled up me sleeves and went off to read some of the reasons people have been giving to leave the EU, my personal opinion: - yes there are real problems - most could be fixed easily - leaving the EU will not fix the problems (oh a problem, let's run away...) - other "problems" are not...

That holder is really crappy unless you have the right bars. Mine flare out at just the wrong place. Also the light up there is very exposed as I found out when the bike fell over in the train... The beam is much rounder than I expected on your garage door, my b+m lights are all very...

The DUP! That's a nation isn't it? I mean they have a billion pounds sterling! Gosh! ...

Macron must have really annoyed him! :) That is going to go down really well with the US pension funds who have invested heavily in French Chateaux!

You worry me more and more! We need to talk... :rolleyes:

An update to this thread after +2 months commuting to and from my new flat in a hilly area: - in order to save weight I have been running with the Graphene bricks in 10S 36v 10000 mAh mode - I get about 35-40 km from a charge (down to 37-37.5v or so, read below) - I am charging every 2 days...

Reducing current will help the controller run cooler. 36v @ 15A = 540W 48v @ 12A = 576W so a little more power, less heat in theory There is a bit of calculation to be done to get the right compromise: I want to run my GSM at 44.4v because I need more RPM at the pedal to stop back EMF (I spin...

There are 4 public charging points here, none of which are close to where I live now. My only options would be to rent an inside parking space and install a charge point or charge at my GF's house and pay her for the electricity. On a day such as today having a Twizy parked 4.5 km from here kind...

At luna cycle a 17.5 Ah battery is $100 more expensive in the 48v version. Normal, there are 3 more cells in each series chain... If you sell 36v and 48v batteries that have equal Wh then the 48v battery will have fewer parallel groups. You must use cells with higher discharge and lower...

- Batteries are cheaper so the entry level price point is easier to sell - Remember that the first generation pedelecs were often 24v so the 36v "standard" is already a 50% increase in performance from then - There is some ambiguity in the wording of EN15194 around whether maximum volts is 48v...

Gen Sir Nick Carter, chief of the defence staff, told the BBC the military “stands ready to help in any way we can” in the event of no deal. As in a coup and a military dictatorship? With the Queen as head of state of course... :p

Gears have been known to hold out up to about 72v and 30 Amps... With cooling fluid in the motor. :D

If the power is actually transformed into heat. Usually with a 36v motor run at 48v and the same current there is little to no extra heat generated, the power goes straight to the wheel. To go faster with an e-bike you need more RPM rarely more power, remember that air becomes a wall at around...

Wouldn't it be easier to buy a BMW i3 with range extender?

I disagree with half of what you are saying: - increasing the voltage of a typical 36v geared motor to 48v will do no harm on 99% of motors (maybe some of the tiny motors will be at risk of overheating) - you have to be very careful increasing the current

Depends what gear you are in and how fast you want to go... In my new neighbourhood there are hills the GSM will climb at 14 km/h tops, that is in 32:18. If I change down to 32:32 I can climb them very slowly (9 km/h ish) and only drawing less than 250W according to the LCD