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You contradict yourself in successive sentences. Stop digging.

Whatcha gunna do when they come for you? :)

Just because you didn't ask the question doesn't absolve you from telling somebody it wouldn't be legal if "turned over to the Feds." Here are a couple where you said peak wattage would make a difference in legality: You know, there's no shame in a mea culpa if you've learned something...

Yeah, the only time you need to be anal about tire pressures is in the snow (or sand). Otherwise, find a pressure that you like on the trails and don't worry about it--it'll be fine on pavement. If I was planning a 100 mile pavement ride, I might add a couple of psi, but short of that for...

I run my fats 6-8 front, 8-10 rear offroad in summer conditions. Less in winter conditions obviously.

Luckily the battery I'll be using is only a bit over 4 lbs. The box I'm making will be better than the Triple Bob, really making side loads a non-issue (should reduce pull-out loads on the fasteners to about 30% of what they would be with a triple bob and make the strap many times more...

My Ultra bike doesn't have them and so far I've found no time in which they would be useful at all. In fact, on a steep technical climb, it's kind of nice to be able to tap the rear brake occasionally for control/keeping the font on the ground, etc, without stopping you dead in your tracks. I...

Technically, 750 watts is over 1 HP, but nobody cares. Manufacturers and authorities alike seem to have adopted the rounded-off 750 figure as acceptable, even as Class 1. Where are you getting the 1000 watt number? As far as I can tell, you pulled that out of thin air. I am aware of no law...

Ah, that makes total sense. Another advantage you have with the larger frame I'm running into now is you have a lot more room to put an extra battery on the downtube if you ever wanted to. It's going to be a tight squeeze for me!

That all makes sense. I started tuning mine very soon after getting it (largely based on the Frey tune) so I've been enjoying the benefits you mention for most of my time with the bike. I was more wondering about mentioned fade in/out issues that couldn't be fixed by tuning.

But why would you mean that? You do realize virtually every law in every country in the world that has any such laws are based upon nominal ratings by the manufacturer, not peak power, don't you? And yes, manufacturers (including the high end ones) play a bit fast and loose with the...

You're correct, but 20 seconds in a 1 minute race indicates a massive, massive, power disparity. If you really think trimming the Ultra's power by 250W is going to slow it down anywhere close to 20 seconds, you're dreamin'. I'm not sure why you'd think a motor with more than double the power...

Yeah thanks, I had actually picked one of those up before I knew what I was going to do. Now that I'm making my own box and can put the holes where they need to be, it doesn't really solve anything. My concern would be the strength of the top insert that will get the brunt of the load with the...

Some hill climb results--the stock Ultra leaves the Turbo Levo Kenevo in the dust:

I'm not familiar with the Archon tuning so I didn't bring this up before. With the stock Ultra controller you can limit torque vs. motor speed so it "kicks in" more gradually when taking off from a start--which sounds like it may help the OP. I would assume the Archon has similar settings that...

I don't think tuning the stock controller can make the motor more efficient under the proper Engineering definition of efficiency. So if you ride at a certain speed on throttle only, you probably won't see much of a difference. However, you can make the bike much more efficient when in use the...

What exactly is this "fade in/out" that you keep mentioning? Under what sort of conditions do you notice it?

That's certainly one option. From the pics it looks like it requires a pretty tall crown race spacer (30mm?) to use. That would depend on your suspension travel, tire size, etc, of course. I'm working on a dual battery setup myself. I really wish Dengfu had included a third waterbottle mount...

Thanks, but that's not my plan at all. My plan is to make the bike as capable as possible and give myself accurate information with which to use it. That's why I'm trying to get a handle on the display readings--freaking out every time the battery dips below 50% actual capacity because the...

Yes, I need to do some experimenting (mainly to verify I actually can run the battery that low). But the point would be if I mentally use 42V as 0%, if I ever get caught out somewhere and run it down to 42V it would be time to put it in PAS 1 and limp home. PAS 1 limits my power to 225 peak...