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I found crank drives give you speed and balanced weight, BPM hubs give you comfortable and massive torque around 10-15mph where most of the riding is done. Until now, I like my BBS01 best. I am not so sure now because 20mph is fast enough for me and the Zephyr-B removes the weight distribution...

I got 20mph out of the Zephyr-B, about 21-22mph out of the Big Bear. It was a bit windy last Saturday.

I think we should keep a distinction between self builds and ready made bikes. Self build bikes cannot be certified, therefore it's up to the individuals to decide where to draw the line with regard to motor power. I wouldn't put too much faith on the label either. If you compare the output of a...

with the battery on the bike? the problem with the throttle can easily be fixed either with a condom over it or you can get a torque sensored bottom bracket for $50.

that's because nothing on the bike is worth nicking. But as soon as your bike has an LCD or a motor or a battery, it will attract the low-life. You've got to rent a bike shed or bring the bike inside. Plus, your bike will stay cleaner longer.

yes, use the same puller with both cranks. You have to be careful with the crank puller. The extractor is made of hardened steel, the crank of aluminium which is not as hard (2.5) as steel (8), so the steel thread can easily damange the aluminium thread. I always put a bit of grease on the...

woosh now have the 36V 25A 500W in stock for £359 including postage. I've got one on loan but a bit fearful for my 8-speed cassette. Will give it a try in a few days.

Lithium batteries are RoHS compliant. No hazardous substance inside. Any Council tip will take them, no need to send them back to manufacturers. You don't have to replace the battery after two year, wait until it fails. Remember, use it or lose it, the more often you ride, the longer your...

you'll have to compromise on some aspects some of the time cwah. Go see Woosh in Southend and try their bikes - they may give you new ideas for your next project. Try the Zephyr-B at least.

any grease will do. I usually have a small tube 40g Lithium grease that is enough for about 3 years. http://www.ebay.co.uk/itm/Weldtite-Lithium-Bike-GREASE-40g-New-Bike-Cycle-Chain-Crank-Chainwheel-Cycle-/350782448248 You will want to refit one crank at a time to eliminate it from the possible...

It sounds like coming straight from the left crank. if the right crank does not make the creak then the fault is in the left crank. If this is the case, remove the left crank, put some grease on the bottom bracket spindle and the crank bolt. Tighten it slowly and check for the tell tale creak...

the only way to defeat thieves in London is to take your bike inside. Therefore, a folder is a must. When you consider what needs doing to electrify a folder, then a ready made bike like the £669 Woosh Gallego is both cheap and fit the objectives.

that is the way the BBS01 and most Chinese e-bikes are programmed. Assist levels you see on the LCD are for pedelec mode, they set levels for the maximum speed, with no limit at the highest level. When you have more levels, the LCD divides the power and speed range into more steps. The throttle...

the Zephyr-B uses the same 6/7/8 speed standard chain that gets fitted into 8 out of 10 bikes, same on your Zehyr CDN. I guess you need 8 more links than the 114 or 116 standard length to accommodate 52T against the standard 44T chainring but anything between 120 to 126 would work. The front...

Rob, you should review the new Woosh Zephyr-B. It's about two years since you reviewed their Sirocco 2. You'll be surprised of the progress they've made.

I rode two of them this morning. The bike I like more has the 180mm rotor to the rear wheel and 160mm rotor to the front. The pictures on the web page have the brakes the other way round, 180mm front and 160mm rear. The braking on the bike with 180mm rotor mounted on the rear BPM motor is more...

it sounds like the chain is biting on the side of the cogs' teeth. Turn the bike upside down, then turn the cranks - that way you can hear where the creaks come from.

I would fit the new sensor with the cable outside and leave the old sensor dangling where it is for a while. After I am sure that the fix works, I'll ask Andy how I am going to thread the new cable through.

if I were today in the market for a ready made bike, I'd look at the £899 woosh Zephyr-B rather than the Big Bear. It has same motor, controller, LCD but rear wheel drive, lighter, nicer weight distribution, hydraulic front and rear and you can shove it in the boot of your car because it can...

the magnet disc can jam if you do not have enough space for it on the bottom bracket. If this is the case, change the bottom bracket for one with longer spindle. Post a picture, we'll see the problem better.