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https://electricbikereview.com/forums/threads/dyi-recumbent-tandem.7728/ What you are proposing is certainly possible, but there are a few problems to overcome. For one, if the motors aren't properly matched with regard to RPM you will always have a steering issue. Not to toss a wet blanket...

If you can actually find someone who will do the conversion for you don't bother buying an "ebike", find the appropriate bike for your use and have them add the motor, battery and controls. Anyone who knows what they are doing can do a conversion in less then one day. Their liability is an...

Assuming the wheels were properly built using the correct tension I'd say that's one part of the bike that you don't have to worry about. I've built quite a lot of wheels and the Andra rim was a joy to work with!!!!!!!

I bought a 52V shark pack for my Titanium ebike conversion that worked flawlessly for 4 months and abruptly failed. The failure consisted of the LCD blanking and power to the motor dropping with any load (motor engaged). After pulling the battery out of the case and exposing the BMS and...

Short answer, yes, and any tandem can be converted to electric. Electric assist tandems are a lot of fun! Court J.

Most states limit use of an ebike on a public way to 16 years or older. Check you state regs. Court J.

That may be true for certain motor controller combinations. If you are using a Bafang Mid-Drive and have the programming cable you can change the variables that relate to power level on input which can be set to 100% with minimal cadence sensing. Not something I'd suggest but you have the...

Update.... Mechanically the bike is essentially done. Time to add controls and electric components. The chain drive line came out better then expected, very clean and efficient. The one unexpected issue was handlebar real estate, because of the orientation, vertical as opposed to horizontal...

It looks very interesting! I can attest to the quality of Rohloff's IGH, but competition is a good thing. Thanks for the post. Court J.

I'm impressed, that's a lot of Km's !! Court J.

Torque sensors are strain gages, (variable resistors) that change resistant under varying pressure and output a specific current or voltage based on the resistance value. The important issue to address is what implementation of the sensor is best at accurately transmitting the correct torque...

Your drive was made April 15, 2016 which means it has the higher quality MOSFET's. Doesn't mean the controller can't fail, but your controller is the latest model capable of handling a lot more abuse. Hopefully the battery will arrive soon and fix the issue or narrow the focus of where to...

The number underneath is encoded to tell us the date the motor was made. That would allow us to know what version controller it has. If it's an older model controller that might be an issue. The newer controller has MOSFETs that handle more amperage, less prone to problems. Court J.

I'll give you my $.02 on what will probably be the most critical part of the bike; the wheel. By the time you get everything on that bike plus the weight of the bike, you'll be well over 300 lbs. That much weight puts added stress on the rims, and spokes. Do yourself a favor, buy a bike that...

They're still functioning.....the bike with the most charge cycles is the Cafe" Latte'. 48V 750W BBS02. That was the bike I converted in the Spring of 2015. I rode it as my primary commuter in 2015 and when I switched to the converted Titanium this May it became my wife's primary bike. Until...

That would happen if the battery shut down. If the supplier is sending you a new battery that would be the right start at finding the problem. If that fixes the issue great, if it doesn't the motor controller would be the most likely culprit. Court J.

Bafang Mid-Drive. Look at the bottom of the motor and write down number underneath the BBS02 48V 750W line, Post the number here. Court J.

Metal Oxide Field Affect Transistor. This is the power regulating device. BMS, Battery Management Sytsem. This is the circuit that manages battery function. Without going into detail I would say you are overloading the motor and or the BMS. Drawing to much amperage. If you are running on 5...

I suppose it is. It is substantially more precise then the usual steering linkage. Combine the precision of the rack and pinion with 3% of camber, 10.5% of kingpin inclination and 12% caster and the steering is very accurate and stable. The steering arm support is adjustable so chain tension...

Update........ I completely redesigned the steering mechanism because no matter what I tried I was unable to get appropriate clearance for my knees when pedaling on the original design. Because the rack and pinion requires a full 270 degrees of rotation from centered to either stop I had to...