Author Topic: sjs query  (Read 1700 times)

jags

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sjs query
« on: February 05, 2019, 10:42:19 PM »
anyone know if sjs cycles sells befang ebike motor and kit i looked on there site but no luck .maybe another link for uk thanks


anto.

Dave Whittle Thorn Workshop

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Re: sjs query
« Reply #1 on: February 06, 2019, 09:45:19 AM »
Hi Jags, no we don't sell them, try http://wooshbikes.co.uk/

Please note Thorn frames, forks and many components are not tested to EN15194.

There are many other compliance issues with EN15194, this means if you did convert it and didn't adhere to all of the regulations, the complete electric assisted Thorn may then need to be registered, insured and taxed as a motor vehicle. In this case, you will also need a driving licence, and you must wear a motorcycle helmet.

energyman

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Re: sjs query
« Reply #2 on: February 06, 2019, 04:03:26 PM »
A cyclist wearing a motorcycle helmet - now there's a sight worth seeing !!
« Last Edit: February 07, 2019, 05:46:19 PM by energyman »

jags

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Re: sjs query
« Reply #3 on: February 06, 2019, 06:19:03 PM »
ah well no harm asking  ;)

jags.

Andre Jute

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Re: Bafang e-bike motor
« Reply #4 on: February 07, 2019, 02:18:57 AM »
Depends which one you have in mind, Jags. I've bought both the front-drive 8FUN Bafang QSWK and the centre 8FUN Bafang BBS-01 in Britain, each time in a kit requiring nothing else and no work to fit the kit that you cannot do with a standard bicyclist's toolkit. In each case it was a happy transaction and I thought the premium for avoiding possibly swingeing import charges on importing from China instead well worth the price. Both dealers, Ecosmobile and Eclipsebikes, are recommended for going the extra mile for me.

This is the front motor: https://www.ebay.co.uk/itm/8Fun-Ebike-Electric-Bike-Conversion-Kit-36V-250W-20-26-700C-Wheel/190694074560?hash=item2c6640a8c0:m:mk--EsX27sxmVEmXYYN2hxQ:rk:41:pf:0 which is complete, including the battery.

Bafang centre-motor kits here: http://eclipsebikes.com/index.php?cPath=26_27. All the kits on this page are complete bolt-on jobs. This one is legal in Ireland: http://eclipsebikes.com/product_info.php?products_id=15.

Batteries for the centre-motor kits here: http://eclipsebikes.com/index.php?cPath=30_31. This is the battery I have and it still seems a good balance between capacity and price: http://eclipsebikes.com/product_info.php?products_id=101

Two things to avoid: Don't try to buy the components separately, but do buy a complete kit. Don't try to build your own battery because complicated, sophisticated control and charge electronics are required if the thing is not to be dangerous.

I were you, I'd try to borrow for a week or two a pedelec of any kind that has been sold in Ireland, so you can understand why it is inadequate for a serious cyclist; for instance, its assistance declines just when you need it most, when you're going uphill. It's for this reason that you should buy and fit your own kit, like those above, with selectable and programmable response curves chosen by buttons under your thumb and a throttle that overrides everything.

What your average electric bike consumer wants in an electric bike, and what a real cyclist wants from an electrified bike are two very, very different things.
« Last Edit: February 08, 2019, 12:40:15 AM by Andre Jute »

jags

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Re: sjs query
« Reply #5 on: February 07, 2019, 10:52:28 AM »
cheers Andre i'll take a look at all those later much appreciated,

anto.

macspud

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Re: sjs query
« Reply #6 on: February 09, 2019, 07:12:19 AM »
An E-bike users take on whether to buy a Bafang kit to fit on an existing bike or buy an E-bike.

https://youtu.be/4sPG_lhO5vM?t=43

jags

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Re: sjs query
« Reply #7 on: February 09, 2019, 11:24:12 AM »
 8)

Andre Jute

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Re: sjs query
« Reply #8 on: February 09, 2019, 11:10:15 PM »
An E-bike users take on whether to buy a Bafang kit to fit on an existing bike or buy an E-bike.

https://youtu.be/4sPG_lhO5vM?t=43

What I've been telling y'all for years now... Those Bafang 8FUN centre motors and associated hardware and software really are the best, and pretty near the bottom of the price list too, very good value.

Since I was already on Youtube, I watched the next video as well, about an entirely different class of e-bike, the e-mountainbike, a test of a cheap one against an expensive super bike. Nothing to do with touring bikes, but amusing. Thanks for that as well.

jags

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Re: sjs query
« Reply #9 on: February 10, 2019, 04:22:59 PM »
so the battery doesn't come with the bafang kit so could end up costing 800 euro for a conversion feck that .

Andre Jute

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Re: sjs query
« Reply #10 on: February 11, 2019, 07:50:03 AM »
so the battery doesn't come with the bafang kit so could end up costing 800 euro for a conversion feck that.

It depends which kit you buy and who you buy it from, Anto. With the front wheel motor kit from Ecosmobile, you get the battery in the kit for 400 pounds and change, so the entire installation costs including delivery costs well under 500 Euro.

It's just happenstance that I bought my Bafang centre motor kit from people who sell the motor and controller electronics and wiring as one kit, and the battery separate. I found them the cheapest in total, and their control electronics weren't crippled, and I judged after speaking to them on the phone that they were technically competent, which couldn't be said for some of the clowns viewing ebikes as an opportunity to make a quick buck.

But if you look around on the net, you'll find a centre motor kit that comes complete with a battery. Whether it will be cheaper in total than the people I referred you to, is another matter. A good place to start is https://www.pedelecs.co.uk/forum/ -- but don't start running after every short-lived enthusiasm of the people there; that's a sure way to spend your money and get something short-lived in return; in addition, some of the people there are UK sellers of certain brands and go off at half-cock at every unproven new-new-new piece of soon-to-be-yesterday's-news. Stick to the two Bafang motors I've identified for you (the 8FUN QSWXK kit Ecosmobile sells on EBay or direct and the BBS1 Bafang 8FUN motor Eclipsebikes sell and for which they also supply suitable plug and play batteries for good prices), which are the common motors among other members of this forum for the good reason that they all have their brains in gear and a tight hand on their wallets.

Note that I trashed my QSWXK kit after 3500km. But I'd been expecting something like that: I just never ride on the flat, and the hills of West Cork killed it; I thought I had good value out of it as an initial experiment to discover whether I liked the experience or should give up cycling altogether. The motor could in theory be rebuilt with steel gears instead of the nylon gears I melted, but the motor itself is the cheapest part of the kit, and the control electronics also melted down, so I didn't bother, just went to the BB motor. The BB motor is a stronger item, which is why it costs more. Mine has already outlived the QSWXK and is going strong. If you read roundabout on the forum here, you will discover that some other ebike owners and I discussed the matter and came to the conclusion that an ebike motor is a consumable item: you can't expect it to last as long as the bike, and you really must look after the battery carefully.

However, if you want to buy a 36V 250W Bafang centre motor kit without a battery, I'll be happy to give you my old kit's battery, which was in good nick when I put it away. It's 9Ah, which should give you a reasonable range. It fits in the water-bottle space on the downtube; it has its own quick release rack with a lock and can be charged on or off the bike. Let me know if you're interested -- and before you actually spend money on the rest of the kit! -- and I'll take it out and put a meter on it to check precisely what sort of nick it is in. You'll need someone competent in electrics to join the wires from the battery cradle to the wires from the motor, but I'll send you the colour codes; I did it myself.

jags

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Re: sjs query
« Reply #11 on: February 11, 2019, 06:15:18 PM »
Andre your a gent but i can't spend money at the moment thanks all the same. ;)
im totally convinced the ebike bafang is for me if it fits my bottom bracket shell and had perfect chain line it would be fantastic,i just need help with hills getting up them ;D.

would i need to change to flat bars don't fancy that to be honest  then again might not be to much of a disaster,just that i got a custom fit for my audax  and don't want to change anything ..

anyway thanks Andre ill get back to you in the summer time.

anto

Andre Jute

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Re: sjs query
« Reply #12 on: February 12, 2019, 01:55:58 AM »
Whether the chainline of the Bafang centre motor will be good on your bike depends on the rear end of your bike, Jags. The kit comes with a dished chainring which part of the drive end of the motor fits into. It limits you in the smallest chainring you can go for (standard supplied with the kit is 46T but 42T will fit though I went down only to 44T) but matches the 54mm Rohloff chainline out of the box or with only minimal shimming, depending on your bottom bracket's fitting precision -- cross my heart and hope to die. You can buy deeper-dished chainwheels but I happen to like steel chainrings and there's nothing wrong with the OEM chainrings, so I stuck to those.

The tidy fascia and control button cluster and thumb-throttle can be fitted anywhere on any kind of handlebar you prefer, and you don't even have to fit all of them because each one is separately cabled with little waterproof plugs and sockets. If you want to build a stealth-bike, all you need to fit is the control button cluster, which is all black, unlabelled, and less than two inches to a side, and then you can leave off the  thumb throttle and fascia (which doesn't control anything; it just reports speed, etc). The controller buttons switch the power on and off, rolls the bike for you when you're parking it, gives you access to 9 levels of assistance (or you can choose 3 levels or 5 levels -- it's like having a multi-gear overdrive) when you pedal, switches the fascia light on and off for when it is dark, and gives you access to the reporting functions of the fascia (which is much like a bike computer). The throttle, if fitted, overrides the other settings temporarily. There is also a brake cutout which you should fit; it puts motor in neutral when you apply either brake.

sdg_77

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Re: sjs query
« Reply #13 on: February 13, 2019, 12:55:19 PM »
Apologies re jumping on someone else's thread - I am looking at fitting a Bafang mid drive kit to my wife's Sherpa and am after some advice on how this will change things.

Let me know if this would be better put in a separate thread but my initial concerns are:

Chain-wheel size - given that she will be loosing the triple front chainwheels, and the Bafang kits come with ~46 tooth singles, will she end up with a very different cadence for the same speeds? 
How do the brake levers compare with the Thorn fitted Shimano levers - she has smallish hands and is not keen on long reaches for the brakes.

Given that she wants assistance rather than extra 'go' I'm assuming a 250W kit will be ok and give better battery life/range - is that reasonable?


regards
Steve.
lapsed member due to house/job moves etc :-)

jags

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Re: sjs query
« Reply #14 on: February 13, 2019, 03:43:33 PM »
i think you can get an upgrade chainring .im a twiddler meself usually ride 39 up front only use the 50 when i going well or down hill.so not really sure what would be best to buy.
better off getting the 750 watt more power on the hills i would imagine.

Andre would be a good man to advise ;)

anto.