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which conversion kit to buy/build, specifically for a George Longstaff Trike

Featured Replies

Bike conversion information

Best Trike conversion kit possibilities.

 

Hello all, chose this forum idea as a result of reading the following link

“Electric Conversion Kit, Which to choose? Compatible with folding bikes?”

 

Brief history explanation first. I’ve been cycling for 49 years now, since I was 9.The last 13 years have got increasingly difficult as I was diagnosed with MS and that threw a spanner in the works. However I have refused to stop cycling and I moved to a Trike [see my gallery] to help balance issue. Now I have to consider modifying the Trike to a powered Trike [hence this forum], and the need for help/advice.

My weight approx 73kg

Trike weight approx 13kg max [see gallery for Trike picture]

 

So with the advice of d8veh here I have begun my listing of ideas/components as follows.

201rpm 36v Q100 kit from BMSBattery

Thumb Level Throttle

http://www.bmsbattery.com/ebike-kits/291-250w350w-q-85100sx-motor-e-

bike-kit.html

The choice of this kit is as d8veh commented, lightness/low torque/less gyroscopic action [important as tipping is an issue]

Does this kit provide, in descent translated English a connection manual of any sort?

I have contacted BMSBattery but there reply was very limited.

 

Battery brick think would be best, need to spread weight at lowest

point of Trike across wheel base to add stability to machine. Geometry

of Trike is such that corners and cambers of roads cause potential

tipping, personal experience and broken shoulder confirms that.

As the photograph in gallery shows there is a built in carrier on this Trike which although having a Carradice carrier on at present would still have room, possibly underneath or even directly in front of the carrier, for a battery

 

Controller readout would have to be mounted direct from headset as the Trike has a Klik fix mounted

front handlebar bag.........[this is also used on my mountain bike if

I can ever get back on it].Connecting to the handlebar stem mounting would just need some sort of mounting bracket.

at present the typical controller /readout in mind would be like the

Oxydrive or such....basically would replace all the typical standard

bike readout items [odo/trip/speed/max/avg etc] whilst also adding the

power readout of wattage and battery power left.

I have looked at 1 briefly on “saneagles” new build, namely the speedikit readout…very neat.

 

SO:

Motor/Controller...perhaps as above

Battery:...no idea or what size. Perhaps about 10ah

readout:...perhaps as commented above

charging kit…but of course

 

ALL advice appreciated as summer is on the way and I want to get it all done preferably before end Feb.

 

Please bear in mind that although my history is as an aerospace research engineer, because of the MS doing any delicate physical work is now beyond me…..but I always try.

 

Thanks for any help /advice and particularly to d8veh for his valuable help so far [get in touch dave please].

 

PS; to give an idea on budget, i have been considering the Oxydrive kit, generally excellent except the battery is frame mounted and as said above putting that weight on the carrier lowdown would be more beneficial. Price on that approx £850, would like to spend a little less [say about £600 +- £100].

  • Author
Hi I just posted this on the forum

 

 

Kalkhoff Agattu Electric Trike 53cm frame | eBay

 

We can supply a fantastic kit BUT not in your budget Cost with 48 volt 20 AH battery 1,000 watt front wheel £1400

 

Frank

 

Nice system, but not what Im after.

 

My picture shows I already have a Trike [aka £2500 worth of George Longstaff ] so it's unnecessary for me to buy complete. A kit to adapt my Trike is what I'm looking into and require the assistace/advice about.

 

thanks for the message though.

 

cheers

Geoff

Edited by Geoff9

  • 2 weeks later...

Hi Geoff,

 

You might want to consider an eZee kit, they may be over your budget, but we.......and others think they are worth it. You can see more info here eZee Conversion Kits - electric bikes and conversion kits

 

Regards,

  • Author
Hi Geoff,

 

You might want to consider an eZee kit, they may be over your budget, but we.......and others think they are worth it. You can see more info here eZee Conversion Kits - electric bikes and conversion kits

 

Regards,

 

Nice kit, now that is a good comparison with the Oxydrive kit that I've been looking into.At the moment I have sent an E-mail to Oxydrive/Andrew to get some more information with regard to my Trike and my health condition [MS].

 

Both the kit you show on your link and the Oxydrive are almost the same in cost area and performance.

 

One of the items I have to look at is, my Trike geometry has a tendency to tip ....[english road camber and being too enthusiastic on some bends]....broken shoulder and collar bone proved that. So as a result I will be looking into the possibility of putting the battery onto the rear carrier to bring the weight ballast lower .This will probably involve slighly longer cables to connect to as well unless the supplied cables are fairly generous.

 

[ATTACH]4898.vB[/ATTACH][ATTACH]4897.vB[/ATTACH]

 

Also I am getting in touch with my local MS society to see if any financial assistance is available.they have already contacted back saying yes,but the process has to be sorted first.They [MS society] are intrigued with the whole electric bike idea and have asked me if i would be prepared to give a talk when Ive built a kit into the Trike...which I have gladly said yes too.

This would be a thankyou to them for any assistance they can give me and a great advertisement to whoever I buy the kit of [free advertiisng if you like].

 

thanks for the link anyway , all infomation is useful.

geoff

DSCN1559.jpg.548c91ee083507d57763bfa54e506d52.jpg

DSCN1560.jpg.905224d0d62cd6b15a7caa74931e7f21.jpg

That's a lovely trike you have there Geoff.

Your tipping problem will always remain the greatest issue with that frame but I can see how you are committed to keeping it. Lowering the battery is a good idea but will never solve the tipping tendancy of a fixed frame.

It is possible to get a tilting frame: Batribike have one and we ourselves have a sample bike purchased as a special for a customer. Such frames allow the front wheel to lean into a bend and so help prevent tipping. I've never seen one with wheels larger than 24" and ours has only 20" wheels all round, so probably not for you.

Interesting project though and I wish you every success. If our kits would be useful to you let me know.

That's a lovely trike you have there Geoff.

Your tipping problem will always remain the greatest issue with that frame but I can see how you are committed to keeping it. Lowering the battery is a good idea but will never solve the tipping tendancy of a fixed frame.

It is possible to get a tilting frame: Batribike have one and we ourselves have a sample bike purchased as a special for a customer. Such frames allow the front wheel to lean into a bend and so help prevent tipping. I've never seen one with wheels larger than 24" and ours has only 20" wheels all round, so probably not for you.

Interesting project though and I wish you every success. If our kits would be useful to you let me know.

 

Any chance of a picture of your tipping trike Bob?

Nice kit, now that is a good comparison with the Oxydrive kit that I've been looking into.At the moment I have sent an E-mail to Oxydrive/Andrew to get some more information with regard to my Trike and my health condition [MS].

 

Both the kit you show on your link and the Oxydrive are almost the same in cost area and performance.

 

One of the items I have to look at is, my Trike geometry has a tendency to tip ....[english road camber and being too enthusiastic on some bends]....broken shoulder and collar bone proved that. So as a result I will be looking into the possibility of putting the battery onto the rear carrier to bring the weight ballast lower .This will probably involve slighly longer cables to connect to as well unless the supplied cables are fairly generous.

 

[ATTACH=CONFIG]4898[/ATTACH][ATTACH=CONFIG]4897[/ATTACH]

 

Also I am getting in touch with my local MS society to see if any financial assistance is available.they have already contacted back saying yes,but the process has to be sorted first.They [MS society] are intrigued with the whole electric bike idea and have asked me if i would be prepared to give a talk when Ive built a kit into the Trike...which I have gladly said yes too.

This would be a thankyou to them for any assistance they can give me and a great advertisement to whoever I buy the kit of [free advertiisng if you like].

 

thanks for the link anyway , all infomation is useful.

geoff

 

Good evening Geoff,

 

In terms of performance, the eZee kit is one of the most powerful 'legal' kits on the market and has a worldwide reputation. It is also very versatile with a range of batteries to suit all needs that could be mounted quite low down to help keep the trike stable and the centre of gravity low.

 

If there is anything that I can help you with Geoff, please let me know.

 

Regards,

Hi Geoff

 

our new Kube Baby 20AH 48 volt battery will fit strait on your bike we can supply a front motor to special order about 4 weeks same price as rear kit

 

 

Commuter Baby

 

or our more powerful kit we keep this in stock front wheel

 

Commuter Kube

 

 

Frank

Edited by banbury frank

  • Author
Any chance of a picture of your tipping trike Bob?

 

A long time ago when I began riding a Trike I found this picture of a tilting trike:[ATTACH]4906.vB[/ATTACH]

 

could not find any other information on it, but an interesting piece of Trike engineering just the same.

 

Out of interest i've just been away....out of UK cold [better for my health]... and was studying hand operated recliners....there set ups would allow tidy modification to e-powered systems.Although i'm not yet at the stage of no leg use .

 

Anyway just info.

 

cheers

g

775px-TripendoTilted.jpg.ad35d438ec0bc417ec46a1277fd80d9c.jpg

Rolling resistance is not so important with electric power, so you could run wider tyres which should help stability.
Any chance of a picture of your tipping trike Bob?

 

Here you go Dave... Not great pictures but show the mechanism for the front frame tilt.

 

[ATTACH]4907.vB[/ATTACH]

[ATTACH]4908.vB[/ATTACH]

 

We actually bought this bike in especially for a gentleman who eventually didn't look safe at all riding it, so we didn't sell it. He didn't like the tilt...

20130123_120133.thumb.jpg.0b49a84447b835f917d65500482f2dec.jpg

20130123_120031.jpg.4d55e55d9928baad5bf0ea3f10eb1c44.jpg

Hi Geoff,

 

I'd like to propose our RevO pedelec conversion kit, but I suspect your trike has a 28"/700c wheels and, whilst we will have more 28"/700c and 20" RevO's in stock next month, we only have 26" left in stock at present.

 

We launched the RevO wheel at the London Bike Show last week and received a really positive response.

 

The RevO is an integrated pedelec conversion kit with 250w brushless motor, 8.8Ah Li Ion battery and wireless controller, housed within the "solid" front wheel. It communicates wirelessly to the "wireless" controller attached to the to the handlebar which in turn has a wired connection to the sensor on the bottom bracket.

 

The 26" wheel weighs a shade over 8kg and is well balanced - we had a 26" and 20" RevO wheel on the test track at Excel last week and the feedback was all good.

 

The RevO website (Revo Wheel) is currently under development but happy to answer any queries sent to info@revowheel.co.uk and can supply pics etc.

 

Regards,

 

Geoff.

Hi Geoff,

 

I'd like to propose our RevO pedelec conversion kit, but I suspect your trike has a 28"/700c wheels and, whilst we will have more 28"/700c and 20" RevO's in stock next month, we only have 26" left in stock at present.

 

We launched the RevO wheel at the London Bike Show last week and received a really positive response.

 

The RevO is an integrated pedelec conversion kit with 250w brushless motor, 8.8Ah Li Ion battery and wireless controller, housed within the "solid" front wheel. It communicates wirelessly to the "wireless" controller attached to the to the handlebar which in turn has a wired connection to the sensor on the bottom bracket.

 

The 26" wheel weighs a shade over 8kg and is well balanced - we had a 26" and 20" RevO wheel on the test track at Excel last week and the feedback was all good.

 

The RevO website (Revo Wheel) is currently under development but happy to answer any queries sent to info@revowheel.co.uk and can supply pics etc.

 

Regards,

 

Geoff.

 

and the price is ?

Hi GaRRy,

 

List price for the 26" with 8.8Ah battery is £699.

 

Promotional £100 discount during the London Bike Show and we're happy to extend this for a few more weeks - so £599.

  • 4 weeks later...

I went to see Geoff today now that he's finished his trike. He has the new Oxydrive kitthat now comes with the Japanese Dapush motor, Dapush LCD display, hidden wire brake sensors and Oxydrive 8.8aH bottle battery with Samsung cells. Geoff's workmanship is superb and has resulted in a very neat installation. Hopefully, we'll get a report on how it performs in the near future. Here's some photos:

http://i451.photobucket.com/albums/qq236/d8veh/2_zpse4a5e5ad.jpg

http://i451.photobucket.com/albums/qq236/d8veh/3_zpse9017b10.jpg

Geoff has a hollowtech crank, which means a bit of jiggery pokery to install the pedal sensor. Here's the solution that works with most pedal sensors. The centre of the magnet ring was drilled/turned out to 25mm to go over the shaft; remove the spacers from behind the bearing holders to make the space for the magnet disc; remove the sensor from its metal bracket and fix it from the other side. This gives the right spacing and clearance as you can see from the photo:

http://i451.photobucket.com/albums/qq236/d8veh/5_zpsd536cc0b.jpg

 

Installation of brake sensors is very straight forward with the hidden wire type if you have cable brakes.

http://i451.photobucket.com/albums/qq236/d8veh/7_zps837a8fee.jpg

  • Author

Yes and thank you D8veh for the photos......can also be seen on my gallery.

 

My intention is to use this thread as a history for the Trike giving such details as ride/distances/average mph/voltage change from fully charged etc.

 

i believe this information would be invaluable to a lot of you for deciding what to build in relation to your own requirements.

 

obviously the nature of this will mean an ongoing subject and probably quite a long one.

Andrew of Oxydrivre states that the battery should be good for approx 700 charges.........so I'll use that as a guide line and will post once a month as to progress.

 

If things go as i would like then in the not too distant future I will build my old Mountain Bike [trek 700], whether this will be for others benefit or my own i'm yet too find out [MS might not allow me to ride/balance on two wheels anymore unfortunately].

 

so to start things off at present after the initial 6 miles i have completed 21 then 26 miles , in both cases the battery strated at 41.7 volts and finished at approx 38.7 volts.an average speed of 11.4mph. There were initial teething problems , not too be discussed as yet.

the PAS setting was at 1 and as the advert says....it does what it says on the tin.

 

more later.

 

cheers

This would be very useful. We sell electric trykes but they come in the same form as if you made the Trike from scratch i.e. two boxes and you put the entire Trike together. Therefore there is a case for combining best value kit with the best value motor/battery. Looking forward to hearing more about how you find the system.
  • Author

Feb History 1st entry

 

OK as promised, the ongoing history of the Trike.

 

i'll do it by calender month, will make things more uniform.

 

Entry 1 - Feb.

 

Ride-Setting-Distance-Acc. Dist-mph-preV-postV-Batt.ind-Ch.time-Charge

1.......PAS 0/1.....6..........6.........10.....................................................1

2.......PAS 1.......26........32.........11.6..40.6..37.7.....4/5........3hr

3.......PAS 1.......21........53.........11.6..41.8..38.6.....4/5........3hr........2

4.......PAS 1.......23........76.........11.6..41.5..40.5.....4/5........3hr........3

5.......PAS 1.......26.......102........12.3..41.6..38.5..... 4/5........3hr.........4

 

This is the FIRST entry and obviously had a few minor issues....loose coonections/1 loose spoke. under the circumstances and it being the initial running in period i would consider these all very minor issues.

 

Until i have ascertained the total mileage available for a battery it is my intention to keep cycling at this level of PAS 1 [a range of 5 is available, [making the assumption that each PAS level is 20% of total i.e. 250 W - so PAS 1 would be 50W from 0mph up to max speed setting?]]. Since I have gone the way of a Trike then e-trike my targets now are much less....i.e. 12.5mph for a maximum of 50 miles.[MS makes you appreciate the limits of your capability.]

 

I would appreciate any comment regarding the spoke size , including the key size. As i have a lot of cycling tools i have not come across this key size in quite a while and do not have one. Also has anyone built their own wheels utilising smaller gauge spokes and high grade rims?.

I do know that in major races [Tour de France] a maximum level of 500 watts is used for training when racing up major hills, so would assume that if that power is used for standard racing gear systems on very light wheels, then I can see no reason why motored wheels up to 500 Watts [my Oxydrive is 250W] cannot be built with light rims and light spokes [spoke length excepted].

 

Regarding the display supplied by Oxydrive [it is now different and for me a better arrangment] you can change the readout from Km/hr [default] to mph. I am not sure whether that changes all readings [question has been asked]. I have set the maximum speed to 16 [mph/Kmph ?].

by leaving my original Casio display on as well i have an accurate readout which I can use as my default. this is showing that the controller to the motor is shutting down at approx. 13.5 mph....difficult to be exact as the motor is very smooth and quiet too.

 

D8veh did explain that it would be best to set the maximum speed setting because of non-smooth shut off/start up of the motor becoming awkward to deal with whilst riding.As yet I have not noticed any awkward surges when the motor comes back in so will keep as it is.

 

Obviously by keeping to PAS 1 and not having my maximum speed any higher than necessary, this will save excessive use of the battery and extend the cycling distance...remember 12.5mph & 50 miles is the target.

 

The terrain for all rides is countryside lanes, undulating. there are some difficult hills [approx 1:4 - 1: 6] in places , especially ride 5 over the Cannock Chase . For the first time in many years [had MS 13 years now] i was able to climb up this at a respectable pace.....yes it was not all powered , some was still me , as I want it to be.

 

There is a lot of information here, and I hope it will be of use.

 

as already stated it will be my intention to give a monthly update of progress, if anyone sees any other information that would be of benefit then let me know, and please the info on the wheel/spoke sizing would be greatly appreciated.

 

cheers

Geoff

I'm glad it's all up and running now. It seems to be nicely matched to your bike.

 

The PAS setting is "speed control", not "power control", so your assumption of 50w is not correct. You'll still get high power when you slow right down. The amount of power you get depends on the difference of your actual speed compared with the maximum speed that the PAS level is set to. As an example, when going up a hill at 8mph, you speed difference on PAS 1 is 4.5 mph, on PAS 5, it would be about 18mph, so on PAS 5, the controller will be trying harder to equalise the speeds by providing more power, but the actual algorithms are complicated, and is muddied by other effects -like back EMF, which cuts down current as speed goes up. Throttle control works the same.

 

It seems that your PAS1 setting is about 12.5 mph and the controller doesn't have a sudden cut-off for PAS speed control. The old King Meter type was the same, but the maximum speed cut-off was different because it worked from the speed sensor in the wheel, while as the PAS level speed control works from the hall signals, so on PAS 5, your controller will try and accelerate up to the motor's top speed (24mph on old Oxydrive), but the control panel with it's own speed sensor will cut the power as soon as it senses that its maximum speed has been reached. This is where you get the sudden cut-off on the old system. You should try yours on PAS 5 to see if it's the same.

  • Author
I'm glad it's all up and running now. It seems to be nicely matched to your bike.

 

The PAS setting is "speed control", not "power control", so your assumption of 50w is not correct. You'll still get high power when you slow right down. The amount of power you get depends on the difference of your actual speed compared with the maximum speed that the PAS level is set to. As an example, when going up a hill at 8mph, you speed difference on PAS 1 is 4.5 mph, on PAS 5, it would be about 18mph, so on PAS 5, the controller will be trying harder to equalise the speeds by providing more power, but the actual algorithms are complicated, and is muddied by other effects -like back EMF, which cuts down current as speed goes up. Throttle control works the same.

 

It seems that your PAS1 setting is about 12.5 mph and the controller doesn't have a sudden cut-off for PAS speed control. The old King Meter type was the same, but the maximum speed cut-off was different because it worked from the speed sensor in the wheel, while as the PAS level speed control works from the hall signals, so on PAS 5, your controller will try and accelerate up to the motor's top speed (24mph on old Oxydrive), but the control panel with it's own speed sensor will cut the power as soon as it senses that its maximum speed has been reached. This is where you get the sudden cut-off on the old system. You should try yours on PAS 5 to see if it's the same.

 

In answer to your suggestion D8veh I have tried the PAS 5 only yesterday..........basically as said before i'm generally running in PAS 1 to ascertain range, for now.

Saying that though yesterday as my range test to that point was 36 miles I concluded the remaining 0.5 miles increasing from PAS 1 - 5 noting if anything was left in the battery.............there certainly was. In answer to your comment the speed went up to approx 22mph (remember my max setting is at 16 [km/hr or mph not sure], and it was still accelerating and I was both running out of standard gears and also out of rode. So at this point I cannot give you an accurate figure yet of PAS 1 range and max speed in PAS 5. you'll have to watch this space.

Oh yes the voltage after 36.5 miles had dropped to 36.5V, thinking that if this type of battery is typical then it's usage would be approximately 28 - 31V before it would be shutting off, which if correct would mean in excess of 40 miles would be capable in PAS 1....I'll find out before long.

 

A full list of data will be forthcoming at the end of another months riding. [PS: see PM D8veh when Ive written it.]

 

If it's of nay use then as my mileage had reached the level of approx 34 miles then from freewheel to rotation the controller was coming in at 1 - 1.5 revolutions [as opposed to 0.5 revolutions up to that mileage

Oooohhhh ! i like that , must be a recumbent, I have one ,not that model mind , bags of fun!!!

Your lLongstaff is a thing of beauty , One never masters the art of trike riding even the recumbent models , I have rolled one twice, one was a windcheater,(Mike Burrows) the other my own

Peter Ross trice , very expensive repair job that was!!

A long time ago when I began riding a Trike I found this picture of a tilting trike:[ATTACH=CONFIG]4906[/ATTACH]

 

could not find any other information on it, but an interesting piece of Trike engineering just the same.

 

Out of interest i've just been away....out of UK cold [better for my health]... and was studying hand operated recliners....there set ups would allow tidy modification to e-powered systems.Although i'm not yet at the stage of no leg use .

 

Anyway just info.

 

cheers

g

  • 4 months later...
A long time ago when I began riding a Trike I found this picture of a tilting trike:[ATTACH=CONFIG]4906[/ATTACH]

 

could not find any other information on it, but an interesting piece of Trike engineering just the same.

 

Out of interest i've just been away....out of UK cold [better for my health]... and was studying hand operated recliners....there set ups would allow tidy modification to e-powered systems.Although i'm not yet at the stage of no leg use .

 

Anyway just info.

 

cheers

g

 

Hi Geoff9,

 

I think this is the link to the trike:

 

Click on "FUN ON THE BEND" for details and "Accessories" for the electric version:

 

TRIPENDO - the three-wheeler that likes bends

 

 

Original posts:

 

http://www.pedelecs.co.uk/forum/electric-bicycles/6670-recumbent-e-trikes.html#post84586

 

http://www.pedelecs.co.uk/forum/electric-bicycles/5444-leaning-tadpole-trike.html#post69785

Edited by shemozzle999

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