Originally Posted by
The Golden Boy
This 531CS thing has always been "a thing" for me- People get upset when they find out their 531CS bike isn't "all 531." And it's not like either Trek or Reynolds were particularly outright forthright about what was going on, so there's a lot of conjecture about what 531CS really is.
For me, the only meaningful potential difference is in the fork blades and the fork blade tips. True 531 has a relatively small diameter down at the tips, when compared to most other fork blades, and therefore is a little less rigid and better a deflecting over bumps. If the builder uses it properly. To me, that's a positive, but I'm not trying to thread my way through a peloton or trying to win a field sprint.
But I worry that we're getting off-track for this Trek 620 thread...
