When you file the drop-outs, don't forget to file them deeper as well as wider to keep the motor shaft central, and if you don't file them deep enough, the anti-rotation washers won't be fully in the drop-out, so more likely to spin.

 

IIRC Scotty has the 9 FET controller (was it 22 amps?). You have the 12 FET controller that can give 40amps - so nearly twice as much torque (maybe). I think I'd be happier if I had a torque arm on at least one side. If you find the throttle a bit fierce, it might be worth getting a couple of the KU93 controllers from BMSbattery because they're not that expensive.

 

Please keep us updated on your build

 

Been busy on building first bike. Thought I would start with the most difficult. Turns out it was not that easy. I have managed to fit one torque arm (6mm thick steel) but because I had to space out the disc brake side so that the hydraulic brake caliper would clear the motor I did not have enough axle left for a torque arm.

See couple of photo's.

 

Pictures by hurricane868 - Photobucket

 

Waiting now for ping 20ah batteries to arrive. Heard from Ping that they are in Honk Kong. Will try more photo's soon. The snow has now arrived btw.

That torque arm looks enough. I only have one 6mm one on one side on my rear motor. On my front one I have a 5mm one on one side and a 2,5mm on the other because of the lengths of the axle on each side.

 

It's not clear from your photos, so is the wheel central to your frame? Have you dished it or will you have to?

That torque arm looks enough. I only have one 6mm one on one side on my rear motor. On my front one I have a 5mm one on one side and a 2,5mm on the other because of the lengths of the axle on each side.

 

It's not clear from your photos, so is the wheel central to your frame? Have you dished it or will you have to?

 

 

I have made sure the wheel is sitting central in the frame d8veh. Hoping to give it a road test when the snow disappears. Should maybe try it in the snow and see if it leaves two tyre tracks. I have ran a test in my shed using my old 10ah battery and everything is working fine. Certainly a lot quieter and less resistance than the Synergie.

Usually the rear bpm is about 5mm of central so usually requires a little bit of dishing. But you can get away with it though as it's only 5mm.

 

I've not use torque arms on my build and it's been fine but safer to have some. I've now ordered some as a just in case. But the dropouts on my bike are generally quite thick and seems to be holding.

Watching the build with interest anyway

Usually the rear bpm is about 5mm of central so usually requires a little bit of dishing. But you can get away with it though as it's only 5mm.

 

I've not use torque arms on my build and it's been fine but safer to have some. I've now ordered some as a just in case. But the dropouts on my bike are generally quite thick and seems to be holding.

Watching the build with interest anyway

 

Sorry to read about your off the other day Scott. Hope you and Marin are okay. Had a couple of cars skidded onto my grass verge last night in the snow so I am not even going to attempt a test run till it clears. Made a right mess of my grass. Should really make a start on bike number two while waiting for batteries.

The snow has now gone and I have been out for a test run on the new build. Failed miserably. I only get about 500yds and it cut's out. If I then switch off the battery at it's key then back on It works again for about the same distance and cut's out again.

 

I am using my old 10ah battery until new 20ah Ping arrives on the 350w Bafang motor and KU120 controller so could it just be that the battery is not powerful enough?

 

Replies would be greatly appreciated.

 

Alan

Hi The BMS Is to small in the Battery

 

You could fit a bigger one what type off battery cell is it li-ion or Lifepo4

 

Frank

Hi The BMS Is to small in the Battery

 

You could fit a bigger one what type off battery cell is it li-ion or Lifepo4

 

Frank

 

Thanks for quick reply Frank. It is a lion battery.

Hi You need one of the following from BMS 20 A continues 40A peak

 

Smart BMS 5~13 Cells in Series - BMSBATTERY

 

 

Frank

Frank is correct. The 10ah battery the over discharge current is kicking in to protect the cells.

This means when your drawing power from a huge 30 - 40 amp 12 mosfet controller the cells just can't cope.

 

You need a much better battery like the Ping you have ordered. You'll have to wait really...

Or be hideously gentle with the throttle

I am using my old 10ah battery until new 20ah Ping arrives on the 350w Bafang motor and KU120 controller so could it just be that the battery is not powerful enough? Alan

 

The same thing happens with my BPM or Ezee motor using the Li-ion bottle battery. I have to use a KU90 controller with a 20A limit. With the Ping battery all is fine with a KU120 series or 35A Infineon controller.

 

 

Alan

Suppose I will just have to wait then. I was just trying a road test to see if all was okay and it does seem like the battery at not able to cope.

 

I have the tracking number from Ping and the new batterie's should be here on Monday. We are hoping to head down to York on Tuesday for xmas and was hoping to use the new bike there. Will just have to take the Synergie if battery is not here in time.

 

Thanks again for your invaluable help.

 

Alan

Your 10aH battery has a current limit of probably 20A, so as long as you don't go over that, everything should be OK. It just means that you have to be gentle on the throttle and disconnect the pedal sensor. The pedal sensor gives power according to how fast you pedal. Pedal fast and it'll give the full 35amps.

At last the Ping 20ah batteries have arrived. Got a scare yesterday whilst tracking the progress for delivery. I was informed that I had to get in touch with Fedex at Stanstead. The packages had failed Customs as they were under declared at a value of 160USD.

 

I was informed that I had to email my proof of payment so that they could clear Customs. This resulted in a payment due of £205.47!!

 

I had to decide whether to pay it or send them back. After much foul language to myself I decided to pay the ransom.

 

Any body else had this experience?

Hi All FedEx shipments are being looked at we have had shipments held up all is OK as our suppliers don't under declare asking the reason I was told it is counterfeit products they are looking for so if somebody is trying to import A fake product the value shows it up as Fake and it is destroyed

 

 

 

 

Frank

I paid less than £20 IIRC. £205 is miles too much. How did they calculate that? It's very worrying.

I paid less than £20 IIRC. £205 is miles too much. How did they calculate that? It's very worrying.

 

 

I reckon it is 25% Both batteries cost £802 so a quarter is £200. VAT is 20% and import tax I am guessing at 5%

 

Just wasn't expecting such a hit, That makes each battery costing just over £500 That is more than the Synergie Cruiser for the whole bike!

Is that just with FedEx Frank? Or are Chinese imports with all couriers randomly going to be checked and +25% I wonder, as that is the quoted customs rate.... Makes for a nervous wait!

Seems the belt is being tightened. Just been stung for an extra £16 on a £20 item from HK, that's £4 VAT plus a ' clearence fee' from a company in London that I've never heard of. If this continues I'll certainly pull back my spending which completely goes against what's needed in these times of financial worry...

Seems the belt is being tightened. Just been stung for an extra £16 on a £20 item from HK, that's £4 VAT plus a ' clearence fee' from a company in London that I've never heard of. If this continues I'll certainly pull back my spending which completely goes against what's needed in these times of financial worry...

 

Greed is king, NRG. Some things never change.

 

Indalo

Hi I think the customs have collected so much more revenue that things will change

 

the Original problem was Counterfeit goods like branded clothes handbags Ect

 

 

The low value was a give away

 

and the Christmas rush was the time to clamp down and stop the flood

 

Our suppliers say they are given goverment incentives for export so value is important

 

But even with the 25% I would still recommend BMS in china for Value for money

 

And they do deliver a good product

 

Not the cheapest but the are real and will deliver can take up to 6 weeks

 

Pay by paypal so your payment is protected

 

bike conversion kit, ebike kit

 

Frank

Uh oh!

I checked the progress of my shipment tonight and found this....

 

'Tendered for delivery without success because of outstanding payment of charges. The item is being held and the addressee is being notified.'

 

I wonder how they'll calculate this?

 

It's my bpm motor, i suppose they'll be looking for a copy of the invoice?

 

Happy Christmas everyone

VAT plus duty plus 'handling charge'....there was a bit on the news tonight about customs clamping down on counterfeit goods but its also affecting normal 'traffic' as well, there are tightening up it would appear.

Uh oh!

I checked the progress of my shipment tonight and found this....

 

'Tendered for delivery without success because of outstanding payment of charges. The item is being held and the addressee is being notified.'

 

I wonder how they'll calculate this?

 

It's my bpm motor, i suppose they'll be looking for a copy of the invoice?

 

Happy Christmas everyone

 

Bad luck. Hopefully they'll just use the value on the paperwork (about $50), so it won't be too much. keep us informed. Merry Xmas.

I have nothing to add really to the excellent replies made already, just wanted to share my own experience.. I went for a front-wheel motor for ease of fitting and removal as I was worried about getting a puncture..but I don't think that should really be a deciding factor. I ended up fitting puncture-proof tyres and never needing to use my gears. On my next conversion I will do a rear wheel as I think it looks more discrete. I would agree with the other posters, you need a bigger battery probably for 350W than 10Ah..but I guess it depends how you plan to ride and how far.. 10Ah is probably borderline or minimum power for that size motor I would imagine. I used to ride with 5Ah which was borderline/minimal for 250W, 10Ah upgrade made a big difference on the hills.