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Umm, not sure what the point you thought you were making there? Torque sensors are in no way unique to mid-drives.

The basic theory is that if you take the mass that would have been part of the extra drivetrain components and replace it with active motor mass, you will be better off. It has already been stated that there is a lot of technical waffle in this thread and I am in agreement. It has moved far...

What you are essentially discussing is efficiency. I hate to tell you this, but a correctly designed DD motor is inherently more efficient than a variable geared system. The following link is a long thread on ES that tears apart the old myth of the need for gearing with an electric drive...

You okay Col? Have you had a bit of a knock on the head today? I'm afraid I can't help you with the info you are looking for, but it's nice to see you approaching this from the other end for a change. It'll be interesting to see how this thread develops.

Your inability to drain your battery quicker than you do is testament to your ability to keep your motor running extremely efficiently. Whatever you're doing, it's clearly a good riding style and a great position to be in.

You know what, I might be a bit out on the consumption figure - it's probably closer to 200W, but I don't have a reliable source to hand. Definitely more than 80W though.

Physics is physics - a universal constant. This stuff doesn't change just because you're riding a specific bike. With your average upright bike (aerodynamic profile) on flat ground, it takes roughly 250W to sustain 15 mph. The ratio of motor to human input is irrelevant. That is where your 250W...

So what you're saying, is that in certain situations your bike DOES output more than 250W. So, does it, because you can't have your cake and eat it?

Which Wikipedia entry is that from? This one suggests otherwise: https://en.m.wikipedia.org/wiki/Real_versus_nominal_value

Just to pick holes, it's not the lack of torque that's the problem; you just need more power. It's the lack of efficiency that's the issue. In all honesty though, do you have any 'real world' problems with 26" wheels?

Well..... yes, I guess I am showing off just a tad. Lots of folk use this bag and I'm happy to share the info on how to cram as many Wh as possible in there. I'd be interested to hear of any better ways to fill it though. Unless you require the ability to break your batteries down into smaller...

My lord has it taken some doing, but I've finally managed to fit 6x 16000mAh 4S Multistars into an EM3EV frame bag. It required some major reworking of my wire runs and I've still not completely finished the job (still have to relocate the GPS tracker and auxiliary DC-DC converter), but 1420Wh...

Thanks for the heads-up. I know I asked for off-road tyres, but they're pretty aggressive for my requirements, although I could probably just about get one in my Kona Blast hardtail frame.

I favour DD hub motors and I'm thinking of bucking the trend and reducing my rear wheel to 24", but am still unsure due to the lack of decent, wide, off-road rubber. Does anyone have any reconmendations? For a solely road going bike I'd go 20" for sure.

Legal pedelec = motor with a 250W nominal rating. nominal adjective (of a role or status) existing in name only. ....and your speed control lever idea is a throttle.

I wasn't saying that you have a cadence sensor, just that your statement about throttles is incorrect.

If your daily commute resembles the terrain in that video, you might have a point. Otherwise, forget it.

Simple cadence sensors do not require heavy exertion from the rider to get maximum assist. Throttles are banned due to favoured interests of motorcycle and scooter manufacturers by the EU administration. No more, no less.

That is EXACTLY what it means. As trex says, it'll only be supplying full power when accelerating from a stop, or riding up a steep hill.

What a storm in a teacup this thread has been! I can understand why the OP might be so concerned, but as mentioned many times, it's highly unlikely that they'll hear any more about the incident from the police, no matter how much other members here would like. The poster above used the phrase...