KinLin XR-300 and XR-380 are not everyday use rims...especially on rough roads. You will destroy them...
They are very lightweight racing and fast training rims - very thin wall all-around (1.9mm center line) and are used by my customers for track training while they save their carbons for actual velodrome racing. KinLin's use of a higher grade material for these rims does help a little...
The better candidate KinLin rim that has a smaller profile and thicker walls at 470g is the XR-240. That is better suited for everyday use on smooth and semi-rough roads baring accidents.
(I will actually be building an XR-300 and XR-380 set this week for a customer who saves his carbon wheels for the actual velodrome races.)
...and yes, I'm an importer of KinLin rims.
=8-)
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5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life