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There have been a few votes for a rear hub motor - what is the difference between a front hub versus the rear hub motor in practise? And would a rear hub motor require changes to the gearing of the bike? At the moment there is an 8 speed cassette on the back wheel. Thanks, Tim

Losing pedal sync would be strange, I imagine. We had the cranks a few degrees off alignment once, and it felt a lot better when we put them right and our power input was back in sync. It might also feel odd for the rear rider when the motor run on for a few moments when the front rider stops...

I think I may have seen the Yuba Mundo around in Oxford, John. I've come across a potential problem with the Bafang BBS01 idea. This is from Endless Sphere (https://endless-sphere.com/forums/viewtopic.php?f=28&t=76470&hilit=bbs*+tandem#p1154467) : "I don't want to use the motor on the front...

I'm having trouble estimating a realistic range. We aren't particularly strong or lightweight cyclists, and I'm assuming a tandem will be less efficient as one battery is having to push two people. I was worried that limited range may be an issue for us which is partly why the crank drives...

We will probably want to use the bike unpowered for local errands (or when the power runs out) so if there is resistance in the Heinzmann motor, I think we would prefer the Ezee one. It's encouraging to hear how well the Ezee motor copes with Welsh hills. Not sure about a rear hub motor - we...

Thanks D8ve. The 30 tooth chainring is deceptive - it's only connected to another 30 tooth ring to pass connect the power of the two riders. The derailleur gears run from 52 and 39 tooth chain rings under the rear rider. Without power, we do end up spinning the pedals as fast as we can in the...

Thanks for all the responses. Thanks John. The Ezee kit obviously works with the bike - have you had any feedback on how it performs or what kind of range can be expected? It seems to be a bit simpler than a crank drive, and with good battery options and support, so it has a lot going for...

Hello everyone. I have a Circe Helios tandem, which has 20" wheels, and would like to add electric assistance to it. I’m considering two kits: the Ezee front hub motor and the Bafang BBS01 mid-drive kit. Can anyone offer any advice on these? I think that the motor/battery will have more work to...