> I’d prefer to do 1x, but is 2x really a drawback?
1x is nice and simple but 2x is very versatile. Big front gear for regular riding, little gear for hills and off roading. For the use cases you mention 1x is limiting, especially 38×11 top gear on the Radar X Pro. Not ideal for long road group rides like TdT, you’ll struggle to keep pace with a tailwind or mild downhills.
It will limit tire choices, not every gravel tire comes in 37-38mm but many tires offer a 35mm.
Personally i think the Inversion X Expert is the most versatile setup of the 4. You can run 32-35mm slicks for a road race and up to 45mm for gravel and single track. 46×11 high gear and 30×34 low gear. But the Inversion Pro is solid as well and looks fast and whippy.
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> I’d prefer to do 1x, but is 2x really a drawback?
1x is nice and simple but 2x is very versatile. Big front gear for regular riding, little gear for hills and off roading. For the use cases you mention 1x is limiting, especially 38×11 top gear on the Radar X Pro. Not ideal for long road group rides like TdT, you’ll struggle to keep pace with a tailwind or mild downhills.
> How limiting would 37mm be in dirt?
37mm is “enough” for anything if you are, but there are situations where it’s not ideal for sure. See the 4 category classification of gravel: https://theunpavedhub.com/resources/industry-standard-guide-to-gravel/ https://www.granfondoguide.com/Contents/Index/3400/making-gravel-standard
It will limit tire choices, not every gravel tire comes in 37-38mm but many tires offer a 35mm.
Personally i think the Inversion X Expert is the most versatile setup of the 4. You can run 32-35mm slicks for a road race and up to 45mm for gravel and single track. 46×11 high gear and 30×34 low gear. But the Inversion Pro is solid as well and looks fast and whippy.