Subway 2.0 Ebike upgrade - Battery mounts

[reeso3000]

I have been upgrading a subway ebike and have successfully replaced the lcd, controller and pas - bike works fine with the stock battery hooked up to the controller.

The issue is the bms on the battery is fried so rather than buy a generic BMS and charger I decided to upgrade the battery.

I have ordered a 20ah 48v hailong "parrot" - I opted for it due to the battery plate on this model.

Anyway I removed the existing holder to find two raised "studs" for the holder to screw into (As show in the picture).

My question is does anyone have any experience fitting a hailong onto the subway and if so how did you get around this?
Would I compromise the frame in anyway if I was to grind down the "studs" so its flush?

Thanks in adavance!

 

[thelarkbox]

Yikes! not what you wanted to find under the old holder.. grinding it down would be my last option tho, where abouts on the new slide is it obstructing, while a clear pic of the 'nub' its not clear where on the tube its sitting..

 

[reeso3000]

Yikes is right!! I am not home to take some pics but found this online. I have circled where those studs are on the frame. The second pic is similar to the new bracket I will be fitting (currently on its way from Germany)

 

[saneagle]

Yikes is right!! I am not home to take some pics but found this online. I have circled where those studs are on the frame. The second pic is similar to the new bracket I will be fitting (currently on its way from Germany)

Grind them off and put your own rivnuts in. You need three rivnuts for a Hailong type battery (anything over 40 18650 cells).