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Good. I have the Notch C XL reach from geometry geeks (528mm) and the Teewing Flux XL is in my verified database at 505mm. Let me put this together properly.
@Nightstick29 - fair concern, and worth looking at the numbers properly before you commit. Here's the XL geometry side by side:
Bike
Size
Reach
Stack
Head Angle
Seat Angle
Chainstay
Salsa Notch C
XL
528mm
649mm
64.4°
79.9°
442mm
Teewing Flux
XL
505mm
655mm
63.8°
78.0°
450mm
So you'd be losing 23mm of reach going from the Notch C XL to the Flux XL. That's not nothing - the Notch is already one of the longest bikes per size on the market, so the Flux XL will feel noticeably shorter up front. Whether that's "too small" depends entirely on why you liked the Notch's length. If you were pushing the limits of it, the Flux XL might feel slightly compact. If you found the Notch borderline too stretched, the Flux could actually suit you better.
The stack is virtually identical (6mm in it), and the Flux runs a slightly slacker head angle (63.8° vs 64.4°) which partially compensates for the shorter reach by keeping the front end planted. The chainstay is 8mm longer on the Flux too, which shifts the weight balance rearward.
It's worth knowing the Flux is also a proper 180mm high-pivot enduro bike versus the Notch's 160mm trail character, so the geometry serves a different purpose. What's your height and what riding were you finding the Notch C excelling at?