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Bafang don't describe the power of their controller in nominal wattage.

the physics is simple: the work that the user must input into a Bosch system is 25%. Work = power * time. Where: Power = torque * rotational speed, (power in Watts, torque in NM and rotational speed in radian/s). So the faster you rotate, the lower the torque (less effort on the pedals) you...

no, it's not that. I made a torque sensor bike before and sales were disappointing because we don't have the right profile to sell bikes to the younger ones. Quite a lot of my customers suffer type 2 diabetes. Their energy level can suddenly drops, making torque sensor bike unsuitable.

can't say I do, because most of my customers would rather have a throttle just in case.

20A-25A max I don't know. The problem for us is derestriction. A road version of 48V x 25A MaxDrive is sure to be a magnet for s-pedelec speed, it's not what we want to do.

If you hold the speed steady on throttle, it will cut off after a little while, you have to wiggle the cranks a bit to re-activate it. To keep it going without pedaling a bit, you can gently wiggle the throttle instead.

I am not sure that the threshhold for brainwash needs to be that high. There have been many mass suicides from sect followers, the likes of Waco, and self-immolated monks in recent history. There are also drugs that lower the human instincts of self preservation and promote violent behaviour.

you must have inherited her excellent genes! The user has to put in at least 25%, the bike 75% at most. In order to beat you at climbing hills, I suppose your Mum puts in 200W at 85 rpm, the motor 600W, her heart rate should be what? 110 bpm?

This is the first sample, I can still make changes, your opinion is most welcome. Draft specifications: Bafang MaxDrive 350W 48V 12AH or 48V 15AH battery Hydraulic brakes front and rear Target price: £1,299 - £1,399 (depending on battery size) including delivery.

your heart must be in pretty good condition to maintain this sort of cadence for more than a couple of minutes.

It's not bad but you can always add a stem riser to increase the height of the handlebars and reduce strain on your lower back.

for that sort of commute, I would suggest you take a look at the Woosh Zephyr. http://wooshbikes.co.uk/?zephyr-2017 It has full suspension, kevlar tyres, nice Suntour XCM fork with preload and remote lockout, front and rear hydraulic brakes, powerful Bafang SWX02 motor, 12AH battery - enough...

if you sell arms, that is not the cycle of international stupidity. That's is the releasing profit cycle. the UK is the second in world ranking for selling weapons.

52T over 11T at the rear is too much strain for the BBS01.

I must say I am most impressed what xiongda have achieved with their YTW-06. Thank you d8veh for bringing this little gem to our attention.

Hello Elaine, I think the Woosh Petite would suit your needs. It is fitted with 24" wheels and therefore a little smaller than the average steep through bike and should fit your height very well. The Petite has both pedal assist and throttle, in case you find pedaling difficult. It can take you...

Torque sensored bikes generally don't have brake sensors. the Carrera Crossfire has a torque sensor, your survival instinct will probably tell your legs to stop pushing when you brake!

Lots of my customers use the Santana2 on canal towpaths and forrest trails. The tyres are Kevlar and wide. But I do take your point about the weight. You can remove the battery before lifting the bike up to the MH rack, that will bring the bike's weight down to 20-21kgs. If you need...

a lot of my customers suffer some arthritic pain riding bikes with rigid forks which is made worse by higher air pressure in narrower tyres. We can do a bit to alleviate the problem like changing tyres to balloon type tyres and fit better saddle and suspension post but they are not enough...

Hello KD, Is this your previous bike? If you find it uncomfortable to ride, then may I suggest something like our Woosh Santana2. The Santana2 is fitted with a suspension fork that cuts down substantially vibrations transmitted from road surface to your wrists and shoulders. It also has...