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check that the chain wraps snugly around the chainring and freewheel.

that 250W kit on ebay that you linked to is gutless. They quoted 15NM torque, not even good enough for the Netherlands.

no. The controller for those 1000W kits have 12 Mosfets, they are usually fitted with 30A fuse. Your current controller has 6 FETs and no fuse. Your current battery is normally fused at 20A. It'll blow every time you hit a steep hill. You will need a minimum 36V 15AH battery with high...

you'll have to upgrade your present battery - otherwise, your new DD kit will produce 30% less power than your present hub kit. If you don't throw enough money at it, this project is not going to fly. DD e-bikes aren't exactly cheap by the time you kit it out with a suitable battery.

DD motors are not as torquey as geared hub motors, so you will be OK. The main advantage of DD kits are cheapness and reliability. DD motors are cheaper than geared hub motors because they don't have a gearbox. To get the most of your 1000W DD kit, you will also need at least a 48V 12AH battery...

if the LCD is made buy King Meter then error 21 is usually for a non functioning PAS sensor. I would unplug the motor cable, brakes, PAS and throttle signals to see if the error goes away.

I don't think you can. The motor is what it is, you can't make it more powerful.

hold both up and down buttons for 5 seconds to enter setting mode, you should see 'MXS' flash. Use up / down button to set desired speed, press power button to save. You can download a manual from the woosh website here: wooshbikes.co.uk/manuals/Sport-TS-KT-LCD3-Error-codes.pdf

Yes, 100%

can you look after your own bike at the moment? if you can, then consider buying online and I can be more specific in answering your questions. If you cannot, stick to German made bikes.

the most important thing is to try as many bikes as you can before you buy.

Woosh are sending out GSM kits today.

Elimination of exposed connectors: that goal has been met by Chinese bikes for some time now, with Bafang and bmsbattery.com leading the way. Braking: hydraulic brakes are getting more popular. Kudos and Woosh offer that choice. Suspension: most forks on German e-bikes are made in China, the...

the larger Krieger will arrive around Chistmas. 650B wheels, front and rear Avid disc brakes with 180mm rotors, downtube 36V 15AH HL battery with controller inside. should suit sixfooters.

lots of progress have been made recently in Chinese made bikes, albeit still lagging behind European designs. Controllers are smaller and integrated inside battery casing or inside motor casing, thus benefiting from their better water protection. Pedelec sensors are also smaller, often encased...

you are not wrong there. Weight, speed, gradient and motor power are all related. The BPM motor is much better suited to your needs. Ezee Sprint, Kudos Tornado and Woosh Big Bear are very affordable. If you want hydraulic brakes, Kudos Rapide or Woosh Zephyr-B.

Rob, Woosh probably sell more bikes to commuters than any other suppliers in the UK. Some of their customers clock up over 4,000 miles a year. The Krieger and Big Bear can do 4,000 miles a year. The Karoo is specifically built for high milers. As always, if you use your bike to commute, you need...

I was thinking of something lightweight, rear hub drive so no fiddling with gears, just pedal at constant cadence to keep the heart rate steady and use the assist level to suit the terrain. A 24" wheels if the OP's mother is small or the Woosh Karoo if she is taller than 5ft8.

you are better off buying a ready made downtube pack. If you buy from bmsbattery, you need to allow $100 for airfreight , and you will likely be charged for import duty and VAT. For example, this popular bmsbattery 36V 15AH pack costs $299...

I reckon you only need torque arms if for motor with 180mm diameter or above. Use a pair, sung fit is important.