Long time since I've built an ebike, last posted in this thread on page 22 back in Aug 2010!
Was active here on the forums way back in 2009 when I was running a 'Greenewheels' as sold in Australia, which I then upgraded to a BPMII rear hub, and pretty much changed out everything except the frame and the seat, as it was all crap componentry. Aluminium Frame has been solid though.
Recently snapped my BPM axle on a bumpy section, and have been meaning to upgrade from the horrifically bumpy ride that 4kg of hub motor gave me.
Just bought one of these in 21 inch (the last one available in 21inch) and have ordered a BBS02B with 17.5AH 48V (Panasonic NCR18650GA 3500mA cells) in the 'HL-2' 'Shark' case from GBK.
I strongly believe this battery case will fit this Corratec 21 inch frame but not the 19 inch. The HL-1, 18mm skinnier would fit that one, there is a guy on ebay building these I have seen.
I have turned the rear air shock upside down to give enough clearance for this battery. There should be about 10mm clearance between the batt and rear shock now.
This thing is great german tech.. I can't stop myself riding it, it is just like floating on air.. I've never ridden air springs or a dual suspension bike before. It loves riding off gutters, you hardly feel it while sitting in the saddle!
Seems the people selling these must have a bunch of them, old stock from 2012 but still new in box. Easy fitment of the Bafang BBS as old style threaded 68mm BB. I was looking at 2nd hand giant anthem or trance or GT for way more than the $750 I paid for this new.
Waiting on my motor and batt to be delivered so not sure how smooth the build will actually be, but this could be a good option if you ar ein Australia, want to build a dual suspension ebike, and you are happy with a 19in one, appears to be plenty left down there in VIC.
Looking forward to this build! I've ordered a programming cable so that I can speed and power limit this to NSW legal limits for the road.
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Updated, converted bike pic uploaded. I am thrilled with this thing.. It is bloody amazing!