SRAM front and rear derailleurs don't come with batteries most of the time. I converted my TT bike from mechanical to wireless shifting and needed one more battery to complete the set up. It's nice that these are standard and can be moved between bikes so you don't need to have a bunch of them. I have another one on my AXS XPLR dropper post that I move to the TT Bike when I'm going to ride it now, or back when I'm using the gravel bike.
These are the best all around gravel tires for the SF Bay Area. I primarily ride in the East Bay on pretty chunky trails and some single track and occasionally get over to Marin. I have the 45's with tan wall and haven't had any flats over the last 10 months or so and they still have plenty of tread left on the rear tire, front looks pretty new. The Thundero HD's are super fast and grip very well, the only minor quibble is in mud the smaller knobs don't dig in too well. Other gravel tires I've ridden are Maxxis Ramblers (meh slow not too grippy), Pirellli Cinturato M's (very good as well a little slower but better grip in mud, heavy, not as supple). Unless something better comes out I'm planning to get another set.
These tires were originally designed with the wider (25mm internal width) original ENVE SES AR 3.4 rims in mind (which are now the standard ENVE SES 3.4 rims). I use the 29mm size which were optimized for those rims for aerodynamics, rolling efficiency, and durability. I started using these when they first came out and have had great success--they just feel great on different tarmac surfaces and at the right air pressure (like 55-60 psi) they are very comfortable compared to the classic 90+ psi 25mm tires that many still ride. The handling is great and they work well on all tubeless ready rims. And they're pretty easy to install too.
Man, these are good looking. Sure, I had to use tire levers to get them on the rims, and it was a tight fit, but once seated, they accomplished their intended purpose with style. They're wide enough to be very comfy, and fast enough to let me rip along on pavement, but with a texture that keeps me from wiping out when iI hit dirt. You already know the GravelKings have been around forever, but once you're riding on them, you immediately know why they aren't just called GravelPrinces or GravelDukes. These are rubber royalty, and they're reliably rad.
