Thomson Elite X4 O/S StemThe Thomson X4 is stronger and 30 grams lighter than the Thomson Elite 25.4 mountain stem. It features a traditional steerer clamp that is shaped to save weight and to be knee friendly. Light enough for Cross Country or Road is only part of the story. The X4 is absolutely the best combination of strength and weight available. Thomson stems are the strongest in the industry, meaning freeride and downhill riders can run Thomson confidently.
I only use Thomson stems on my bikes. I have a 50mm on my Pivot Firebird, a 70mm on my Pivot Mach 5.7 and a 90mm on my Vetana El Ciclon and all of them are just awesome. The quality is unbeatable, clamp firmly and evenly and they look great.