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I think no matter how hard you try, adding more unsprung weight to the rear triangle is not going in the right direction, which is: a light rear hub motor with low reduction ratio (eg Bafang SWX) or a crank drive kit.

your battery is possibly out of balance. Did you use the bike much in the last few months?

that is just a demonstration of how good our scientists at Porton Down are. They have the right antidote for Russians' Novichok.

it's called 'free enterprise' also known as 'market economy'.

confirm first the active signal voltage with a voltmeter - measure between ground and signal. You should read 0V without the magnet and around 3.25V when the magnet is close to the sensor head like this:

Hi Phil, which controller are you using with the GSM?

it's my mistake, the KR8 is a bike, not a trike. I should also have checked, it has roller brakes at the front. Zut! http://www.workcycles.com/products/child-transport-bicycles/workcycles-kr8

here is the hi-res pic, good enough to zoom in the rear hangers if you want to have a look. the rear triangle seems pretty solid to me. I agree with d8veh that a crank drive would remove any worry.

The thread is left handed and over time, can be very stiff. you need a special tool for it. You bolt the tool to the ring with the 8mm allen crank bolt and it the arms with a 16oz mallet. Please email andy@wooshbikes.co.uk

you don't normally need a torque arm for a 250W rear hub motor. The main thing is to make sure that the motor axle sits deeply in the dropout and the anti-rotation washer is also properly inside the jaws. This is in fact straightforward, in most cases, just visually make sure that when you drop...

the cheapest UK source is usually ebay. then there are Chinese outlets based in Germany. then there are web companies. and then there are web companies that are members of this forum. The amount of support you get is best when bought from traders on this forum.

I don't think it's possible, Matthew. A kit for the ordinary bikes costs already in the region of £500. Even if you substitute the Lithium battery for a set of SLAs, it will only bring it down to around £400. If you buy from bmsbattery, it is a bit cheaper but there is still Paypal exchange...

Heavy trike + rider + 3 kids = 200kgs? I reckon you'll need a BPM front hub kit and a rear rack battery. http://wooshbikes.co.uk/?hubkits#bpmrackkit

BJ did not say who told him that 'there was no doubt about that'. maybe the guy who told Mr Johnson got it from the Daily Mail.

I think your kit has too much torque. The Heinzmann DD brushed motor was just about right, you can get to perhaps 10mph max loaded with a very gentle start.

they do a number of tests beside the usual gas chromatography, IR spectrometry, mass spectrometry and gamma spectrometry to get to other compounds beside the poison or poisons, such as traces of special solvents, radioactive traces and biological traces. If they could pin it on the Russians, I...

that's the tory's way for you.

If you have excellent brakes (like hydraulic brakes) and are not going to use the throttle, then the brake sensors may be omitted. if you want to proceed step by step: 1) connect the battery and LCD, switch on, make sure LCD comes on 2) connect the throttle, make sure the throttle works 3)...

the brake sensors are usually active low, they stop the motor when the signal is shorted to the ground. A sensored brake lever can have yellow 3-pin (5V, signal, ground) or red 2-pin connector (signal and ground). For either type, don't plug them in when testing.

as jhruk said, do you need the reverse function?