Q128 with sine wave controller

[AndrewJ]

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.

 

[Deleted member 4366]

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

 

[AndrewJ]

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]

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.

 

[Deleted member 4366]

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.

 

[AndrewJ]

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]

We need a drawing.

 

[Deleted member 4366]

Hmm; if I do try this out, it would not be dissimilar to the Stokemonkey layout

That seems a bit pointless to me. why not use a ready-made crank-drive?

 

[AndrewJ]

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.

 

[AndrewJ]

We need a drawing.

This is a link to the webpage of the same type of recumbent I am getting, in terms of their stokemonkey type layout. If it doesn't take you to the right page it's page 19 about half way down considered and disregarded a Bafang BBS. http://velorizontal.bbfr.net/t21269p450-pederrodek-skoul-ar-pevarzek

 

[Deleted member 4366]

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.

 

[AndrewJ]

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]

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...

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]

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...

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

Are you on the order list then? There's a BBS02 branded 250W motor here http://www.brightonebikes.co.uk/store/p69/Bafang®_BBS02B_mid_drive_conversion_kit_36V_250W.html

 

[anotherkiwi]

No I am going to give the Mxus a second life. I don't know if the brightonebikes one has the 25 Amp controller.