Endless Sphere

The third bike down under E-scooters is looking very interesting. Like a sleeker Light-Bee.

Personally I'd like to see some electric "play bike" options inline with the KTM Freeride or possibly for the 150cc motocross class.

I drove a TDI for 150,000miles until it was written off. If they made an AWD TDI Golf wagon I'd be driving one still.
Mine only needed regular maintenance as most do under a half million miles.

Several 2-5kw mid drives.

A heavy setup like that will ruin whatever rear suspension performance the bike has.

You might look at the QS motors, probably the "2kw". They are working well for light motorcycles.

Rough surface? If so you'll want a mid drive over a hub.

Yes you have it precisely! I hadn't thought of tooth engagement but I don't think it would be very significant. I can envision a version which uses a simple linkage to increase engagement but putting that into words is more challenging. Having as much slack as possible without tossing chains is defi...

What kind of trails are you riding?

Still running the BAC500? What sort of torque figures?

A powerful 818 EV is something I've been hoping for although I'd prefer to keep one RWD with modest power rather than an AWD missile. 250kw would be lots.

I'm not good at expressing myself with pictures so I will try to explain the tensioner I propose better. It would sit between the swingarm pivot and the motor sprocket and be mounted on the swingarm so that as the suspension is compressed it comes into contact with the lower chain to take up the sla...

Build one using some aluminum plate, all you need is a hacksaw and drill.

Best thing to do with that thin bracket is toss it in the garbage.

I'd take a one-wheel over an e-skate, e-scoot or segway for commuting. Probably over an ebike for commutes under 2-3 miles or if able to use public transport to boost range.
They are intuitive and able to tackle surprisingly rough terrain.

Zgal48 wrote: ↑

Dec 30 2019 6:40pm

Grantmac wrote: ↑

Dec 22 2019 5:36pm

Have the people who've received these weighed them? 8kg seems a lot compared to similar drives.

Zgal48:
What amp rating is the controller you used?

I'm just using 35 amp controller 72volts.

Did you weigh the drive when you had it out? Gear version without two chains right?

Before going to extensive solutions look at how people use a sandwich of copper under nickel to spot weld.

If you're looking to scratch build a bike then $19 shouldn't even register on the list of expenses.

A lot of people ask "When will it pay for itself?" which is a silly question - I have never seen a car reach into it's pocket and pull out it's wallet and buy itself from the showroom floor. Not yet, but that's one of the Tesla's promises when you add your vehicle to the pool of their autonomous ta...

I had my pole vs stator terminology mixed up but it seems you understood what I was grasping at.

That Astro is a very interesting wind. Overlapping fields but looks like a lot of unused space in the stator.

4 extended down towards the cranks. plus some in the frame.
Shame you are going hub, that's a great frame for a mid.

One of the members on a few of the FB ebike forums will be bringing them stateside. Looks like 6-7000 complete. Might be able to it cheaper DIY (I could).

I think the guy who built the hard "saddle bag" parallel batteries in pelican cases has a brilliant idea. No need to ditch the stock battery when you can simply parallel another BMS and run double the power. Would be even better in some custom molded lightweight enclosures. The item which I really t...

I'm not interested in the swingarm or co-axle motor, but that belt setup has some parts that I hope become available.

I'm imagining that if you ran just one set of 3 phases there would be a gap between the poles. Wouldn't that lead to a faster "jump" towards the next magnet? Perhaps I'm seeing it wrong. The phases should have lower resistance though because of shorter windings so KV will be affected somewhat. Being...

An old enduro motorcycle isn't great offroad, adding an underpowered hub will just make it much worse and end up costing similar to a Sur-ron which people have licensed. If you're going to go through the motions of doing a motorcycle to EV project then the added cost of a modern bike and decent driv...

I buy 10-15 year old cars for ~$5000 and keep them 5 years then sell for ~$3000. I do no major maintenance beyond timing belts. I don't carry collision insurance since that will be the cost of the car in 5 years and if I use it for an at-fault accident my rates will double. Its going to be a long ti...