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Please see: https://forums.electricbikereview.com/threads/experiences-with-sram-axs-wireless-derailleurs.53918/ How is shifting under load with the wireless setups? Did the Hydra ship with power-interrupt sensors to temporarily cut off the motor while shifting to help drivetrain life?

For the Ultra motor, if you're using the stock spider you need a 5 bolt 130 BCD chainring AND then you need a tooth design that's compatible with the chain you're using. For instance, see this Wolf Tooth page, which says in part: Of course, that's aluminum, so may not be what you want. FWIW, I...

Yeah, I've seen that general guideline. The reading I've done on hitches makes me think that we're over-estimating the vertical load that can be applied via a bike rack to most hitches. Here's a thread of interest...

With the EggRider you don't need any Bafang software packages. Just install the EggRider App. I like the EggRider as my controller, not only for the times when I was making changes, but even now being able to use the phone simplifies my cockpit. I run EggRider, RideWithGPS, Music, and even the...

We're talking the Bafang Ultra motor here. Tuning can make significant differences and I find the improvement worthwhile.

I think your best bet is to read the "other" tuning guides and see if any of them have links that still work. You can read about them here: https://forums.electricbikereview.com/threads/ultra-tuning-where-other-guides-go-wrong.52606/ I personally recommend the EggRider V2, as that makes the...

That's Luna's BBSxx package - not for the Ultra.

Not to get too far afield, but more than a couple reviews pointed out that many of the popular shock pumps, including the RockShox units, appear to be identical and made in the same factory. For instance this review, which says in part:

BTW, the Lezyne is just a breeze to use. Pretty easy pumping even over 200psi, easy reading of pressure on the digital gauge. The only nit I have is that you have to be careful when threading onto the shock as it seems easy to go on cock-eyed, which would be bad if you end up cross-threading...

Yeah, that tire is not fully seated. Do not ride it until you seat it properly. Did you inflate it to the maximum pressure the tire can handle? If not, try that. In the past, with Tannus Armour inserts, I've had to temporarily inflate 10-15psi higher than is stamped on the tire to seat the bead...

Instead I just received this one: LEZYNE Digital Shock Drive Bicycle Hand Pump, High Pressure 350psi https://www.amazon.com/dp/B01JKA3GLU Which has cost me about $95. "$95 you say? I see it on Amazon for $75." Me: "It cost me $20 to buy the cheap one I just had to throw away. Once again...

Thanks, and yes I agree that the often misunderstood Voltage table needs to be setup right to make any of the subsequent tunings workable. In case @keithj69 was asking where to start, I have two answers: Overall Ultra tuning, start with this thread...

First and tenth posts in the thread have EggRider screenshots. Other screenshots are available in the "gone wrong" guides on the web, such as this one.

Another update: After riding more with my wife, I've updated Step #5 in the Step-By-Step post, above. My latest thinking is that there's really no point in pushing the Torque Table mapping beyond what you're capable of actually producing on the pedals. Might as well just capture your max pedal...

Here's a tool to NOT buy: https://probiketool.com/products/shock-pump Pro Bike Tool Shock Pump. First, it's hard to pump once you get beyond about 120 psi. Second, the release valve seems to let out air, and not just the air in the hose as claimed. That's because the screw action is so slow...

What's up with this wire (red arrows)?: It travels the Downtube both inside and outside, adding to the space problems where the motor goes. Why?

Looks like a lot of excess wires/cables that may not need to run through there. So many exposed wires that also end up inside, seems crazy. Unused motor wires should be stuffable after the bolts are in, behind the plastic cover plate piece.

Actually, Box Three says the chain has same internal dimensions as an 11-speed chain, so the cogs/sprockets aren’t thicker. And tests I’ve previously linked showed that all manufacturers’ 12 speed chains outlast their own 11 & 10 speed chains due to better materials. But, the Box Three stuff is...

Have done a couple rides now with my un-bent hanger and re-adjusted derailleur. Not a single missed shift or popping off a sprocket. Lesson learned: If you’ve adjusted your derailleur and still have problems, check for a bent hanger. It’s really hard for derailleurs to overcome that...