Q1148V1KW kit M14 nut thread type & torque arm placement

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smaua   10 mW

10 mW
Posts: 33
Joined: Apr 04 2015 5:35am

Q1148V1KW kit M14 nut thread type & torque arm placement

Post by smaua » Nov 12 2018 6:03pm

Hi again, keep running into problems whilst trying to put together the kit I got from bmsbattery. I tried looking through the forums but couldn't figure it out, sorry if I'm asking really obvious things.

Basically I have no idea how to know for sure what kind of thread the axel has. I have the Q11 48v1kw kit from bmsbattery. I got the standard M14 nuts from the diy shop but they don't screw on. They only have one kind of thread in the shop. I would be happy to buy from Amazon or ebay if only I was sure about what I need is called. The axel looks like this :
https://pasteboard.co/HMT6jOv.jpg
Dunno if it's possible to figure out for sure just from the picture? Or maybe someone knows the kits. I would have expected bmsbattery to send the nuts with the wheel but that didn't happen annoyingly.


My second question is about torque arms. I have a rear mount wheel and the bmsbattery torque arms. Can't figure out how to attach them, especially on the side with the derailer, just doesn't seem to fit well. Here are some photos. Any suggestions super welcome.
Non detailer side:
https://pasteboard.co/HMT8LOn.jpg

Derailer side:
https://pasteboard.co/HMT9ofP.jpg

Thanks a lot!

docw009   100 kW

100 kW
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Joined: Aug 02 2015 7:43am
Location: Chicago area suburbs.

Re: Q1148V1KW kit M14 nut thread type & torque arm placement

Post by docw009 » Nov 12 2018 9:35pm

They're [wrong]m14 x1.75 [/wrong], if I remember correctly. Unavailable except at ebike shops, I suspect. I also thought BMSbattery ships them two in a little bag with torque washers. I'd suggest you contact them if you didn't get them.
Last edited by docw009 on Nov 13 2018 12:18pm, edited 1 time in total.

smaua   10 mW

10 mW
Posts: 33
Joined: Apr 04 2015 5:35am

Re: Q1148V1KW kit M14 nut thread type & torque arm placement

Post by smaua » Nov 13 2018 5:30am

Thank you! They didn't and I just dont want to wait for a month for postage so I'll try ebike shops.

smaua   10 mW

10 mW
Posts: 33
Joined: Apr 04 2015 5:35am

Re: Q1148V1KW kit M14 nut thread type & torque arm placement

Post by smaua » Nov 13 2018 6:20am

I just called up a few shops and they don't have it. They all seem to sell ready made bikes and not really selling bits like those.

Been trying to look on ebay and Amazon for UK delivery but I can't find any for sale. Any ideas?

docw009   100 kW

100 kW
Posts: 1235
Joined: Aug 02 2015 7:43am
Location: Chicago area suburbs.

Re: Q1148V1KW kit M14 nut thread type & torque arm placement

Post by docw009 » Nov 13 2018 12:12pm

Oh #$%@^/. My first answer was not even close. They are 12mm.

I checked what I have and my 12 x 1.50 and 12 x 1.75 taps don't fit. I believe they're 12 x1.25.

If you're in the UK, check with that Woosh vendor,

smaua   10 mW

10 mW
Posts: 33
Joined: Apr 04 2015 5:35am

Re: Q1148V1KW kit M14 nut thread type & torque arm placement

Post by smaua » Nov 13 2018 4:21pm

docw009 wrote:
Nov 13 2018 12:12pm
Oh #$%@^/. My first answer was not even close. They are 12mm.

I checked what I have and my 12 x 1.50 and 12 x 1.75 taps don't fit. I believe they're 12 x1.25.

If you're in the UK, check with that Woosh vendor,
For me it's definitely M14 x ???.. So maybe we have different kits. So back to square one :) hopefully someone else has a Q11 48V1KW kit with M14 axel

aroundqube   1 kW

1 kW
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Joined: Mar 12 2012 9:58pm

Re: Q1148V1KW kit M14 nut thread type & torque arm placement

Post by aroundqube » Nov 13 2018 6:56pm

You say that it is M14 , next step is to measure the thread pitch ; https://www.amazon.co.uk/metric-thread- ... d%20gauges

smaua   10 mW

10 mW
Posts: 33
Joined: Apr 04 2015 5:35am

Re: Q1148V1KW kit M14 nut thread type & torque arm placement

Post by smaua » Nov 21 2018 3:06pm

Thanks. Figured it out, in case someone needs to know, it's M14 x 1.5

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