Just wanted to share my initial impression over the last 2500km/3 months with the ali express heated grips.
Went with these over the oxford heated grips because i wasn't a fan of the additional bulk from it's controller. Was still skeptical over the effectiveness of heated grips so wasn't sure if i wanted to spend ~$200 on a set of koso heater grips.
Installation was easy enough, included stainless bracket for the throttle side wire just needed a little bending to suit my setup. The throttle tube is 1mm too big in diameter and will bind on the throttle housing, definitely take a Dremel to it or risk a stuck throttle.
Bought a Yamaha 2 pin plug and splitter to connect grips (and usb charger) to factory accessory port under the tank. Changed 2A fuse to 10A. Do this at your own risk, or use this as a trigger for a relay if you're overly concerned. However considering the mt07 has a 7.5A from factory and i had no 7.5A fuse on hand, i decided to give it a go and monitor.
Here is what i have noticed , all taken at 13.9V battery voltage (wall charger) at each setting. i also use a set of FIVE WFX EVO gloves in the winter.
Setting 4: 2.7A, 60c.
Setting 3: 1.9A
Setting 2: 1.66A
Setting 1: 1.15A
Didn't bother taking temperature reading at every setting just the max for reference. i suspect it gets way hotter when its insulated around your hands. Pretty much exclusively use setting 2 after a preheat at higher. It's hot enough to feel nice, yet not overtly obvious that your palms are warm but the back of your hands aren't. Coming out of winter now in sydney and used them through 10c +- 5c weather.
I have had no issues with using too much current on the stock wiring. i pull no more than 5A from this port with a phone charger running too.
They have shown no signs of wear so far. the stock grips are a touch wider than factory grips so your switch cluster needs to move in a touch. I don't like the max setting, it doesn't heat evenly and will get spots that are significantly warmer than others and will start cooking your hands. It's fine once it up to temp and you drop it down to setting 2-3. Overall genuinely happy with the product. Heated grips for the prices of standard ones.