Hi! I have aquired a three-wheeler front box cargo bike, sold by Biltema Norway. It is a sturdy and well buildt bike - fairly heavy though, around 60 kg. Components are OK, 13 Ah 36V battery, rackbased with controller in battery box somewhere. Freewheel rear hub motor, 100 mm dia, julet connector in 26" wheel. It is an OEM motor, maybe Bafang or copy, nominal 250W 36V. Speed is fine, does 25 km/h on the flat. Problem is that it runs fast out of steam on inclines - it is a struggle to get it up to the house, 50 m on a 1:8 slope -without load. And Oslo is a hilly city. So it seems I need more torque. 500W rated motors are allowed on this type of cargo bikes in Norway. My initial plan was to change to a low RPM BPM2 500W 36 V, but I am afraid it will not go well together with the 160 mm disc brake, and I would like to keep as much as possible of the original components. Woosh mentions 180 mm disc for the BPM.
So, questions: Will the BPM work with 160 mm disc - if not, will the SWX02 do? Other alternatives?
Is it likely that these upgrades will work with the existing controller? Guess I'll by one for use with the existing motor anyhow, but it would be nice to keep the existing cabling.
Gratful for any input!
So, questions: Will the BPM work with 160 mm disc - if not, will the SWX02 do? Other alternatives?
Is it likely that these upgrades will work with the existing controller? Guess I'll by one for use with the existing motor anyhow, but it would be nice to keep the existing cabling.
Gratful for any input!