Yeah it’s interesting. I’m sure when I was looking at both the Boone and Crockett a couple of years ago the Boone had that “33c Bontrager tires (with at least 4mm of clearance to frame)” listed as the max, whereas the Crockett listed 38mm. It didn’t ever make much sense since they are almost the same bike, just different materials.
I would only use 38mm for gravel racing, so mud clearance isn’t a big deal. I run 33s for CX racing.
Did it actually quote “Bontrager Tires”? haha The tires that come on the boone are absolutely abysmal. If its so much as humid out, they had no traction. That and theyre 32s and not tubeless compatible, despite whats printed on the sidewall.
I had the Boone RSL (circa 2019 I think) and could fit 35s ok but got rubbing with 37s (WTB Riddler). Not sure if the Boone RSL had different specs than the normal version as I know some of the road models do.
As I stated above with my experience, I could max out with 35s with the RSL frameset. I know Trek usually have slightly different specs with those as they’re the “Pro” version so I could see them have a slightly smaller tire clearance so you can get bigger chainrings as they did with the new Domane RSL. I expect the regular Boone version to fit bigger tires.
Great point but I think the current grx, the only way the 22 version is specced, only goes up to 42. I have a 42 on mine and there’s for sure room to spare to go larger with an aftermarket option. They also didn’t do a RSL version as of yet on the Boone 6.
One of my wheelsets has 33c Donnelly PDX on roval terra wheels. These caliper out to 37mm at 28psi, with plenty of room to spare. I’m fairly confident a measured 40 would fit… the only question is what size tire that would actually be? Depends on the brand and wheel width
It’s not the 1x that’s the issue. The Shimano pros use 2x, usually 46/39t. So there would need to be room for a 39t inner ring, which is where the clearance issue comes in. The current retail Boone may not be what the pros are riding, or they’ve just made changes since the RSL model.
Didn’t even think about this with a 2x!
I wonder if the bikes the pros have are off the shelf custom painted or they have a RSL that’s not released? Would love a Curtis white lime green!
they’re not that similar? one is moulded from carbon, another is manufactured from aluminium tubes and hydroforms. same name, very different bike.
The only common across both is the fork, and some smaller frame part accessories.
Placing my faith in this as I want to put my Rotor Aldhu/P2M 24mm road crankset onto my incoming Crux Comp with a 46t 1x chainring
