off the shelf e bike or custom build ?

jim Brock

Finding my (electric) wheels
Jan 25, 2015
21
5
Derby
Thanks for the replies. Still going round in circles but I am picking up the jargon although I haven't figured out what BPM means yet but I know what a BB is.

Car is lovely Martin (MY12, stage 2 Litcfield)

The idea is to pedal all the way on the journey so would a mid drive be a better bet ?
 
D

Deleted member 4366

Guest
A BPM motor is a larger than average motor made by Bafang. They called it "The Hillclimber" for obvious reasons. There used to be 350w or 500w versions, but now you can get a "250w" version of the 350w one, so many OEMs are stating to use it in their bikes for those that have steep hills to climb or not much pedal power.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,882
8,517
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West Sx RH
BPM = Bafang Performance Motor ?. BPM Acronym that I thought sounded
good:D.
 

Martin@e-bikeshop

Esteemed Pedelecer
Car is lovely Martin (MY12, stage 2 Litcfield)
Nice, mine was stage 3 (MY09), downpipes, injectors, intake etc running 620! On custom map through my dataport all maps from Ben Linney. Lovely car :)

The idea is to pedal all the way on the journey so would a mid drive be a better bet ?
I much prefer CD, in fact we specialise in them, but others will point out the exact differences.

I would suggest, go ride both and see which you prefer.

Martin
 

trex

Esteemed Pedelecer
May 15, 2011
7,703
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BPM = Big Powerful Motor.
The BPM is better hillclimber than most CD motors at the moment, except the S-Pelelecs, the 8-Fun BBS02 and the woosh Krieger.
 
D

Deleted member 4366

Guest
Which BPM are you talking about? There's about 20 different versions. The one Iin the bike I built for Allen-uk will annihilate any Wooshbike or s-pedelec in a hill-climbing contest. His was only set to 23 amps. They run OK on 30 amps, which would annihilate a BBS02 - if the BBS02's controller didn't burn halfway up the hill, in which case it would be no contest.
 

trex

Esteemed Pedelecer
May 15, 2011
7,703
2,671
the legal ones, laser marked 250W. I guess all the manufacturers run these at 17A-20A