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the zephyr CDN has font and rear suspension, is quite good on bumpy paths. I quite like it.

the way the throttle works is programmed into the controller. You can't change this.

a crank drive is good at any speed, on any hill because you can select the right gear. Have you tried the Cube? as e-bike goes, it's a proper job.

woosh Zephyr CDN http://wooshbikes.co.uk/?zephyr-cdn 10% yes, 32% no.

I have difficulty to see why the designer went for a heavy rear DD motor while keeping the front so much lighter. Wouldn't it be better to balance the rear weight with a 2.5kg suspension fork?

sign up to youtube, then post your video there. Youtube will take a few minutes to process your video. After that, you can watch it there. Then come back here, click on the 'media' button and paste the URL to your video.

wouldn't that void his two year guarantee?

it isn't true. G4S is a very large multinational. Nobody owns a large chunk of it.

the woosh GSM is also a legal 250w CD kit but has 18A controller instead of 15A woosh also sell 4 different downtube batteries to go with it. http://wooshbikes.co.uk/?cdkit#gsmkit

@Smart eBiker Unless you can fit it yourself, you are going to be fleeced to get it fitted. Not worth throwing that much good money after bad. Spend £50 on a good suspension seat post like the Suntour NCX.

I think he is going to fit a motorcycle tyre to his 16" rim. I like the idea.

Buy from one of the trade members here. You are assured of getting an excellent service. The folder that you refer to is a toy and I dislike their pressure selling tactic.

@Jefner what do you think of converting your old bike instead of buying a new one? The way I see it, converting an old bike would reduce the lifecycle carbon footprint by half.

you summed it up very well, KD. I agree there is no point fitting the BPM to a 24" wheel. If there is a need for more power, then the SWX02 or your SWX08 would be more than enough.

Under current EU rules, country of origin is defined as the place where they “underwent their last, substantial, economically justified process or working”. From that, if the bikes are designed and PDI'ed here, in the UK, any manufacturer can legally stick a Union flag on their bike. Proposed...

agreed but gravimetric energy density goes up about 10% per annum, after 3 year, it's justified to replace the old battery with a new lighter one. The cells themselves contain a tiny amount of hazardous substances, so their throwaway does not cause much environmental harm.

the intellectual part.

No, not the frame.

it's difficult to make a better BMS (aka PCM board) than what you see at the moment. Some have bluetooth connection, auto deep sleep, auto wake up, smart fuel gauge and data logging functions that you can interrogate using a smart phone or PC. Battery cells for e-bikes are selected for a range...

all the Lithium-ion e-bike batteries have built in BMS that does balance charging.