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get the Tornado. Same motor and battery but simpler electronics, more natural to ride and cheaper too. The Arriba has excellent hydraulic brakes, that's the main difference.

this £625 Woosh Santana would do the job. several members have got it. or this £559 foldable Woosh Gale (same motor, same battery): You may need to replace the sprung seat post with a low profile one.

yes, they do, using their own built-in motor generator. As long as you pedal, you don't need to recharge.

I think I screwed up somewhere in my maths. A wider pedal is more comfortable to the rider but should not change anything in the average work produced by the motor pedals. I tried to remember what the maths was but not quite succeded. Regarding full rider weight, both feet must remain on the...

When the crank reaches the top or the bottom, the motor helps pushing the chain ring round. I calculated the maximum useable torque is half pedal width * half rider weight * g = 0.07 * 38 * 9.98 * sin(a)^2 then average over 0 to pi()/2 (a being the angle of the crank arm to vertical). The...

it was posted on the news thread back in 2011. The motor can only produce most useful work when the height of the legs does not change, the crank arm position is at vertical. Assuming a cadence of 100 RPM, the power of the motor is torque * 0.5 * 3.14 * 2 * 100 /60 = 5.2 * T (Watts, T in NM) The...

this story runs and runs. http://companycheck.co.uk/company/07296768/BRITT-TECHNOLOGIES-LIMITED/financial-accounts I guess he must have burned more than £100k. I wish him luck but I fear he'll simply burn all his savings in pursuit of this unpractical idea. We discussed it back in 2011. The idea...

to me, the Woosh Big Bear is the best compromise between cost, power, range, comfort, easy maintenance. It is already well equipped for commuting. Small things like puncture resistant tyres, cartridge BB are useful to have. All the mechanical parts are standard, but could do with better crankset...

you can't damage a chain after 2 months by doing nothing. It may need small adjustments. If the gears don't shift smoothly, then adjust the gear cable. Alternatively, stop at a local bike shop and ask them to take a look, it only takes a mechanic a couple of minutes to do this and watch him...

none of the posters above actually relies on LBS for routine maintenance. How about solving a problem for someone like CL who needs a reliable transport and does not mind paying for it? which one is the most reliable in your opinion? You know and I know if something does not feel right, we stop...

Yes, it does totally.

wind power... nice idea but you would need a sail and a robot to control the sail.

.. and may be a bit of Gambay style in his garage:

it's more to do with keeping the centre of gravity in the middle and low for best handling. the Big Bear has a big motor and a big battery, of roughly equal weight, so the logical thing to do is to put the motor to the front and the battery to the rear to balance their weight or put both in the...

two more items: you'll want the best seat post and not too many gears, a Nexus 3 would be sufficient in most situations.

ezee bikes are particularly well built. It's the attention to details, simple things like two pronged stand on the Sprint, axa wheel lock, good quality crankset, good quality mudguards, metal cover for the motor cable, rubber grommets on cables etc that I like.

the steering comes off in picture No 3. There must be a plug at the front of the tube, a bit like on the annad bikes. Undo the front wheel then pull the battery out through the front.

I saw something similar on the TXED website last year.

most bikes can cope with moderate rain -but repeated exposures cause condensation and stagnation. Batteries for example are normally waterproofed. Open one after a few months in the rain, you'll see there are rubber gaskets between plastic and alloy but steam still gets inside through gaps...

If your sensor has a little LED on it, when you pedal, the LED will blink regularly (at the speed of your pedalling), it's easy to check if it misfires. If your sensor does not have an LED then you may need to fit new PAS sensor just to find out if it's faulty or not.