[Closed] Electrifying a bike

I thought that this was going to be about a novel means of theft prevention.

[i]Pffft...[/i]

KA-TZZZ

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Think CRC were selling off some Utes a while back that had been de electrified so may be worth looking at old Kona catalogues to see how they did it.

Doubt somewhere like CRC has a spares box of random junk to delve into to try and locate those bits like your average LBS though.

One of [url= http://eclipsebikes.com/bafang-8fun-bbs02-drive-750w-motor-p-1100.html ]these[/url] and a battery pack like [url= http://eclipsebikes.com/116ah-lithium-frame-battery-samsung-cells-p-1105.html ]this[/url] would do the job.
Could be cheaper if you buy direct from china and luck out on import fees but you run the risk of no or limited warranty support.
I've recently fitted one of [url= http://www.oxydrive.co.uk/electric-bike-kit/oxydrive-cst-ht-13ah.html ]these[/url]kits to my kaffenback when they were on offer and it was easy enough to do. I'd have preferred a crank drive but at the time the hub drive was much cheaper.

As MikeG says. You want to get yourself a BBS02 motor. Mid-drive motors, ones that stick on the BB, are superior to hub motors, ones that replace the hub, as they allow you do use your gears (with a hub motor gears only serve to get a comfortable cadence). As it can use your gears it'll manage load a lot better. For a cargo bike, ignore any hub motor.

Fitting a BBS02 kit (I've done it, and will be doing it again this weekend) is pretty easy, but a bit of a faff with all the wires. The unit comes with chainrings in the 44/46/48T options, though I've found this depends on supplier.

One thing you should note: the BBS02 is [b]NOT[/b] road legal. It can be limited, with some controller hacking, to be sort of road legal but it's a bit pointless. There is an earlier model, the BBS01, which is road legal.

For reference, the law stands at: 25kph (15.5mph) speed limit with a 200W (250W for cargo bikes) power limit. The difference between British and EU law is the power rating; they allow 250W for all classes.

There are other mid-drive motor kits out there, which are also road legal, and they mostly come from the Chinese market. There's a motor by "Bewo" which is also mid-drive and road legal (from what I'm aware).

However, it's unlikely that anyone will be able to recognise an illegal motor as the power ratings are written in small writing on the bottom of the unit and can easily be removed.

One caveat with these Chinese motors is that they lack the superior torque sensor found in the likes of Bosch motors, but rely on a cadence sensor instead for the pedal assist.

Or you could try a stealth motor like the [url= https://www.electricbike.com/gruber-assist/ ]Gruber Assist.[/url]

Suddenly you too can ride like Cancellara*!

*allegedly 😉

Brilliant, thanks. BBS02 looks like it could be just the ticket.
Not fussed about being road legal (I'll be off-road).

Thanks very much.

Can't get any response from that company at all re the BBS02 motors - anyone know where else I can get them?

Thanks.