I’m told a quarq can be added to GRX drivetrain for $500
I think it’ll be more expensive: you will need to purchase a SRAM crank in addition to the power meter. Other options are 4iiii and Stages, but with GRX cranks you might run into frame clearance issues. Plus, these solutions are single-sided. (You can get a dual-sided power meter for GRX, but these likely have the same accuracy issues as Ultegra and DuraAce power crank-based meters, because of the asymmetric crank arm design.)
If you go for SRAM, you can easily add a power meter. Even its Rival eTap AXS groupset has a very cheap single-sided power meter option. It is cheaper than putting on a 4iiii or a Stages. With Force and Red cranks you can use a Quarq DZero/DFour power meter (the difference is only the bolt pattern for the chainrings).
In addition, I expect Shimano to continue to offer a 48/31 chainring option, too. For reference, with the smaller (IMHO better-suited) 46/30 chainrings, Shimano would offer 502 % vs. 516 % range.
Even though I know it is outside the scope of this thread, I wonder what 12-speed cassettes Shimano will release for the 1x version.
I agree with the shimano offering for 2x being superior. My biggest issue is lack of parts and power meter offering.
But a quarq dub dfour solves that issue, I think you can fit grx rings on that.
Unfortunately you can’t. The 2x GRX rings have a different bolt pattern than the road groups to allow for smaller front chain rings.
Do you know of other options?
I just use a stages left arm on my GRX crankset. There is also Power2Max on Rotor cranks https://www.power2max.com/en/ngeco-gravel-power-meter/
Rotor makes excellent stuff. Their cranks, especially the aluminum ones, have a reputation of being top-shelf parts (Rotor’s expertise is in CNC manufacturing). They have three different power meter options, one-sided, crank-based (like a Quarq DZero) and two-sided; if you want 46/30 direct mount chainrings (round or oval), you need to pick between the one-sided or two-sided options. The cranks are modular, i. e. if you buy a new bike and you need a different crank spindle, you buy just that and bolt on your cranks.
The latter needs Oval chainrings are their thing. I love my oval 34-tooth chainring on my XTR cranks. The chainrings came with beautifully machined parts to screw into, which work 100x better than the Shimano ones. (Shimano’s are non-identical and would constantly twist out of position, which means your chainring is crooked … )
Yeah, Shimano really has a problem in the power meter department. It seems to me that they are far behind the times. Their second-gen in-house road power meters are still unreliable. You want a power meter on your gravel bike? Well, it won’t be a Shimano. And do mountain bikers really use power?!?
This is my only gripe with my mountain bike’s XTR groupset (apart from being 11-speed rather than 12-speed): I have no good option to add a power meter without sending in my cranks (I have the older 11-speed M9000-series groupset). Or replace an otherwise perfectly good crank with something else. If my bike came with the equivalent X01 or XX1 crankset, all I needed to do is order the right Quarq powermeter and screw it on. Ugh.
Sounds like I could use a quarq or 2INpower with the rotor cranks
2INPower is the dual-sided power meter I was talking about. The Quarq is to my knowledge incompatible with Rotor cranks.
If you want smaller than compact chainrings (50/34), then you need the direct mount chainrings, and those are incompatible with the Quarq-style power meter. Hence, you either need the INPower (one-sided) or 2INPower (dual-sided) power meters and the direct mount chainrings.
I had great luck with my quarq dfour with DA 50/34 rings set up.
Oops I meant power2max as the second option, with rotor cranks
There is always something new coming. Sometimes better, sometimes meh. If you are looking for 2x gravel group w powermeter, it’s hard to find fault w sram axs force wide w 10/36 (in my opinion). What else are you looking for in a 2x gravel group set? Wireless, rock solid power meter, and flexible gearing. As a bonus, you can easily change the crank to 1x by getting a narrow/wide chainring. You can also swap in an eagle rd and 10/50 cassette in under 10 minutes if you ever want to go mtb gearing. The combo of wireless and compatibility across road/gravel/mtb components for easy mix and match makes sram pretty compelling in my opinion.
Isn’t the gearing too tall for gravel?
Isnt srams 46x10 taller than 50x11? Both are taller than what id want for gravel but about right for all road
34/34 worked fine for me, I’m 200lbs also.
Our gravel averages 1000’ of climbing per 10 miles, with steep short hills.
I am switching to a red crank though to have a 33 front and 36 rear
Technically yes, but I don’t think the ratios are meaningfully different, 46:10 = 4.60 vs. 50:11 = 4.55. SRAM’s gravel crank has a 43:10 = 4.30 ratio, essentially the same as Shimano’s 48:11 = 4.36.
IMHO the answer to that question is terrain-dependent. @Jkauffman was concerned about range earlier in this discussion, so I don’t know whether this is enough range.
Sram markets both cranksets for gravel
Who doesn’t want a bike that can do it all? OK, maybe not all , but we’re lucky to be living in a time with many choices for bikes that are fast and fun on pavement, while still plenty capable on technical gravel trails. A bike that can handle a huge range of activities needs an equally versatile drivetrain, and a 2x eTap AXS build with a 46-33 or 43-30 chainring combo mated to a 10-36 or 10-33 cassette covers it all. Gearing that will let you mix it up on spicy road rides and spin up steep dirt climbs? The future is here.
So 50/34 is about equivalent to 46/33 for gravel/all road
I haven’t heard that. Personally, a compact or equivalent crankset does not seem optimal.
Only if you pair that with a 10–33 cassette, with a 10–36 cassette, you have an extra gear, which in my book is a big plus (even on the road).