Another SLX owner chiming in! Also went with Ceramic Speed and like Brad, I have added 51 Speedshop extensions. I can echo you can fit a tube, full size tire lever, CO2, and chuck in the top tube/seat tube internal storage area, but it tight and I use a bit of black electrical tape in the cover to make sure it doesnâ€™t pop off.
-Of course it's 'effing hard, it's IRONMAN!
ZOOT, Canyon, Garmin, Gatorade Smith Optics, SpeedFil, OttoLock, ORR Cycling Wheels, BASE Nutrition