Q128 with sine wave controller

AndrewJ

Pedelecer
Apr 12, 2013
32
5
Does anyone here own one of these motor controller combinations? Would be really helpful for me to try one out. I'm based in Hertfordshire but can cycle a bit further afield or train it to London/Brighton.
 
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Deleted member 4366

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You can take my word for it. You won't be disappointed with the 48v version.
 

AndrewJ

Pedelecer
Apr 12, 2013
32
5
You can take my word for it. You won't be disappointed with the 48v version.
Thanks d8veh and I appreciate your advice, but hearing is personal to oneself. Also, would I not have to get a 48V battery with the 48 version; I currently own a 36V battery.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
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I have 36v one with dual V controller it is almost silent, my tyres and the wind are louder. My bpm,Oxydrive and bbs are all louder.
 
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Deleted member 4366

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Thanks d8veh and I appreciate your advice, but hearing is personal to oneself. Also, would I not have to get a 48V battery with the 48 version; I currently own a 36V battery.
I've tried just about every type of controller and motor. The Q128C with a KT sine-wave controller is the quietest. It's not a personal thing. It's simply comparitive.
 
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AndrewJ

Pedelecer
Apr 12, 2013
32
5
Hmm; if I do try this out, it would not be dissimilar to the Stokemonkey layout but on a recumbent, so would need to find or get someone to fabricate a mount unless anyone knows where to source something suitable; I think the boom where the existing BB mount is installed is 40mm. Would you be able to run a belt instead of a chain from the motor to the left crank?
 

anotherkiwi

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Jan 26, 2015
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We need a drawing. :)
 

AndrewJ

Pedelecer
Apr 12, 2013
32
5
That seems a bit pointless to me. why not use a ready-made crank-drive?
As you know, amongst other things, I am looking for the quietest drive; if this arrangement makes it noisier then I'll have to reconsider. I can't put hub motors in the wheel of the faired recumbent that I am getting. It's also why I'm trying to source very quiet crank drives. I haven't had the opportunity to try out a Bafang BBS of any kind. That seems to be the only other real alternative drive out there, bar the Bewo at the moment. There is the possibility of attaining a mainstream crank drive without the rest bike as it were, although it would be more expensive. I test rode the Brose on a mtb yesterday and the drive was the quietest of any I've ridden; it was also the most natural power response that I have experienced, and my current setup isn't bad in that respect as it's the TSDZ2 which has a torque sensor.
 
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Deleted member 4366

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When you use a hub-motor as a crank-drive, more noise comes from the chain than anything else, so you gain nothing over a conventional crank-drive.
 
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AndrewJ

Pedelecer
Apr 12, 2013
32
5
When you use a hub-motor as a crank-drive, more noise comes from the chain than anything else, so you gain nothing over a conventional crank-drive.
In that case, could you not use a belt drive in lieu of the chain leading to the hub motor sprocket?
 

anotherkiwi

Esteemed Pedelecer
Jan 26, 2015
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Eh ben voila! You can say Quattro velo on here. We will all be a little jealous. Or maybe I won't be for very long... :cool:

I would vote for the 500 W 36 V BBS02 from e3mev, unfortunately they are no longer stamped 250 W but the will put a 250 W sticker on it for you :)
 

AndrewJ

Pedelecer
Apr 12, 2013
32
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anotherkiwi

Esteemed Pedelecer
Jan 26, 2015
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No I am going to give the Mxus a second life. I don't know if the brightonebikes one has the 25 Amp controller.