The aluminum or carbon topstone 4? the aluminum one is, uh... pretty low end across the board. ergo of the advent x shifter seems not great, brake calipers kind of bad, non tubeless wheels. But it's pretty cheap. A standard kona rove with 2x9 at least gets you nicer calipers and tubeless wheels and tires.
Carbon topstone 4 is decent but 10 speed grx not 11 and costs kind of a lot.
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