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Your DM01 is better targeted. You should make a 250W version of it. Your DM02 repeats the same mistakes found in the TSDZ2, so adding fins, a fan or thermal compound will help but they are wasted opportunities.

I am not an expert but here is your competition, circa 5 years ago: Note how short the rotor shaft is? The rotor shaft gets a lot of stress, you want it as short as possible and the ball bearings on at both ends as big as possible to spread the stress and wear. the winding: They use flat...

can you be more specific? This is what I am talking about: Thermal Putty Kit for TSDZ2 - Eco Cycles

BTW, the pictures of the rotors and stators in this thread does not say much for manufacturing quality and ability, not the best material and finishing from China.

the air gap we have problem with in the TSDZ2 is between the motor and the system housing. In most crank drive motors, the motor housing has cooling fins and is in direct contact with the outside air for better cooling. It's not the case with the TSDZ2 and your DM02 which are housed inside the...

it was a simple mix-up. Oztrikes repeated your line 'The stator is tightly fitted into a machined housing now.' This is what he wrote: "There's a picture of the stator in a machined housing. , Is that enough for it not to be a copy for you mate? At what point does it not become a copy to you...

is it your stator? if so, which rotor fits? the old one or new one?

The problem of that blogpost is not the command of the English language but the banality and lack of knowledge and or naivety of the writer. You can judge it for yourself, here is the main text: https://to7motor.com/mid-drive-motor-vs-hub-motor/

which picture are you taking about? Is it this one? You and Alex keep calling this part 'the stator in a machined housing'. Are you two connected because you both make the same mistake? It's not a stator. This part rotates, that's why it has a ballbearing attached to it, and is called the...

That picture shows the brake cable runs above the motor instead of under the bottom bracket. An issue still not fixed. As for no air gap between the motor and the case, we need to see a picture of the innards. As at present, it looks like a copy.

You have just joined 51 minutes ago and instead of introducing yourself, you jumped straight into calling regular posters trolls and tongsheng fan boys. The last time the word fanboys was used on the forum was also in this thread by a guy who gave to7 10 out if 10. Strange coincidence. Perhaps...

It's the same picture. I wonder who's the bright spark who wrote that blog post on the to7motor.com website

soon I hope. Actually, it looks easy to DIY your own bicycle tyres. The material is sold as a coil, you only need to wrap the coil around the rim and put a rolling band over it.

I have not been interested in those hacking stories before, but recently, watched a guy on youtube demonstrating how to do reverse SSH with netcat, how easy it is to attack wireless IP cams, how to make a 'bad stick', a USB stick that claims it's a keyboard. It's frankly scary. I switched off...

a little sideslip but somebody has made bullet proof bicycle tyres that you can drive over a bed of nails

Strangely enough, they have a real opportunity to bring something new. Both the BBS01 And TSDZ2 are ripe for a major upgrades. On their website, there is an interesting picture of a small motor and separate gearbox similar to cyclone kits. I don't know if they make this motor though...

Am I an engineer? No, at least not a mechanical engineer. I have worked mostly in IT since 1980 and I became a 'grease monkey' in the workshop in the last 12 years because I have type 2 diabetes and need a part time physical job to stay healthy. Still, I have assembled bikes, fitted kits and...

You call me rude? let's see who started first and let me highlight some of your thoughts in your first post: Let's look at your DM02 that the OP started with this thread. there is more than just some influence, is there not? and I am not talking about a passing resemblance alone. Where is your...

Nice, aren't you? I feel sorry for toseven to have you as their sales manager. How long again have you been selling e-bikes or e-bike kits?

It's because you imply your products ' superiority without proof, I am annoyed.