Xiamen Carbon Speed 10 years anniversary special promotion

[c.etzo]

as reference, in my tt-x38 with rims 25 iw and 32mm gp 5000tlr they are 33mm real
and this is the space in the frame that claim 32 max tire

can't wait to receive the t1100 wheels

[biceryder]

32C clearance, or 32mm? There's no standard. Sometimes a seller will start saying 30C, then start saying 32C instead because it's what clients want to hear. My lt268 has plenty of clearance for 34mm, or more. Velobuild 177 claims to clear 32C but various users showed that it doesn't.
Best is to ask the factory for the CAD drawing and how much space there is between seat stays. That's what long teng sent me when I inquired before ordering my lt268.
In theory, 32C clearance should allow you to run 32C with a 33mm rim. For aero purposes, I'd suggest 30C on 33mm rim though, as the 30C will measure wider than 30 on a 33 rim.

Serge,  thank you for the clarifying information.  I mixed up clearance with wheel width.  I’m leaning towards the CS-R01.  Peter sent measurements of the chainstay which put it around 38mm at the narrowest.  By my estimates that would give the frame 2.5mm (5mm total) on either side to clear a 33mm OW wheel.  I like to go as wide as I can to support 30-32mm tires.  I’m just unsure if 2.5mm is enough clearance or pushing the limits of what the frame can support.