James Euler

2021 SLE DC w/ X31 pkg. Thule Upride on the GM GearOn crossbars; rocking my Specialized Stumpjumper FSR 650+

Tell that to the dinosaurs.

The slot in the cross rail is 15mm at the wide part, 10mm at the slot itself, and about 5mm deep. The Thule standard T-bolts will work, if you grind the head down to 15mm in one dimension (they are about 20mm square). Let me know if you need more detail. Good luck!

Near as I have been able to deduce, GearOn was rather ill-fated partnership between GM and Thule, with just enough influence from GM to make the system somewhat incompatible with most of Thule's regular line of stuff. But those crossbars themselves are pretty cool; very slick system to quickly attach/detach from the GM accessory tie-down loops (which are also quick to install/remove), and the bars are heck of stout. I can sit my 200-lb+ carcass on the middle of one with no visible flex at all. So it was worth the slight trouble for me to conform the UpRider bike rack to the GearOn crossbars.

Yes, I used t-bolts engaged in the slots of the cross bars. Neither of those clamps included with the Thule bike rack were large enough to fasten around the GearOn rails, which have a pretty beefy square profile. And I had to grind down two sides of the square heads of the t-bolts that came with the Thule UpRider rack, to fit them into the slots.

https://www.motorauthority.com/news/1128892_california-firm-hyperion-unveils-xp-1-hydrogen-supercar Just saying, more than one way to drive a motor, even an electric one.

That's a Thule Upride, mounted on the GM/Thule Gearon crossbars. Works a treat.

Thanks - I'm really enjoying them both. And the setup has worked out great for hauling the bike.

2021 SLE DC w/ 3.0 Duramax and X-31 Off-road

Good system, but I also found little info. Found mine on eBay from dealer close out. Works great for mounting Thule upride bike rack.

All of this is why I was very happy to order, receive, and now drive my DC SLE. As we all know, for a 2021 DC, only had a choice between Elevation or SLE. Fortunately enough, I actually prefer the trim options I was sort of forced into: cloth seats, minimal safety nannies, chrome bumpers (well, that was preference in choosing SLE over Elevation). All worth it for the DC, even with the extraneous pair of door handles. ? It’s a perfect configuration for me. Just enough cab, and a real pickup truck bed.,

Nice find on that SLT DC. I was a little slow on the uptake, so I’m “settling” for a 2021 SLE DC w/ the 3.0l. It’s very close to everything I wanted, so I’m happy. And planning to keep it awhile. Also really nice to hear so many folks still see the attraction in the DC.

Beautiful truck. I can’t wait to get mine.

I was really wanting that setup, but was too slow off the mark. Now (2021), they don’t even offer DC AT4. I’m kinda jealous.

Those baby seats are a whole 'nother thing, for sure. That's when I gave up my beloved Silverado DC, some twenty years ago. But I'm soon to cure that loss. Two important things that fit nicely in a 6 (and a half!) foot bed, but not in a 5 foot bed: me, lying down, and any of my bicycles, standing up. And there's scads of stuff that fits much better: stack of 8' studs, sheet goods (you've got a solid 8 feet with the tailgate down), more boxes of anything (tile, flooring, etc). But that's my world. I'm sure you're digging your Z71 CC.

Well said.

Yep, that's the way my dealer explained as well - numerous options constrained for some trims and configurations. Guess that means some possibility of the Multipro and spray-in coming available again for DCs at some point? I don't know how long such constraints tend to last, do you? At any rate, I really wanted truck now, and I was somewhat flexible (DC diesel w/ X31 in Cayenne were my must haves), so for the moment, pretty happy if my truck shows up as expected, albeit without the Multipro and spray-in. I will be one of the quirky 21s, i guess. ?

Point of my post is that, according to my dealer, MultiPro and spray-in are *not* currently available on the DC. I know that the Configurator lets you build a DC that way, but for now, that's not reality. And that makes me a little sad.

Honestly did not mean to start that debate up. Main point of my post was that GM was eliminating trims and options available for the double cab, in favor of the the Crew. That surprises and disappoints me, but it's obviously market driven. I concede the greater popularity of the Crew; just sad I can't get all the goodies on a DC. Peace.

I jumped in last month and placed an order for a 21 Double Cab, motivated to move now because it seemed the choices for Double Cab trims and options were getting fewer every day. I picked an SLE, the only other available trim besides the Elevation if I wanted a Double Cab, and loaded it up, including Multipro Tailgate and spray-in bed liner. Dealer called me yesterday and told me order was "not accepted" by GM. Seems they've got too many trucks to build, and not enough parts and supplier support. So they are *not* offering the Multipro or the spray-in bed liner on Double Cabs. They are saving those options for the Crew Cab upper trim levels. I realize the bed liner is no big deal - i can get that added from a dozen different sources. The Multipro, I'm just out of luck. But what I am really surprised at is that the Double Cab is so apparently unpopular. So who loves the Double Cab? To my eye, it is easily the best looking config - all the proportions are spot on. And you can get a full-size bed! And what I really like is that it is an individual setup, kinda like a two-door sports car: you get a Double Cab when it's a truck just for you and your gear (and sometimes your plus one). And isn't that really what the pickup truck is all about? The iconic lone cowboy? A man and his truck (and maybe a dog)? I've always thought that, but that is apparently the minority opinion. Enlighten me.

OP - I know the situation has changed a lot since your original post and review, but I wanted to say that I thought your review was very well done. Balanced, thorough, and fair. You don't see that too often on the interweb. Nice work.

On Sept 28th, I ordered Sierra 1500 4WD Double Cab SLE w/ Duramax 3.0, Cayenne Red, 20" alloys, and Off-Road and Protection Package (and a few other baubles). Due "8 to 10 weeks". Not what I wanted to hear, but I'm settling in for the long run. Really excited to get this truck. Been Jonesing for a pickup ever since 2001, when I sold my Silverado for a kid-seat-friendly Trailblazer. "Open bed or death!"