Thomson X4 Mountain Stem. Features: CNC machined from 1-piece 7000 series aluminum (no welds) X4 dress up kits can add color to any X4 stem, available separately use TP-105* 48mm wide 4-bolt faceplate. 147g (70mm) Specs: Steerer Dia:1-1/8" Bar Dia:31.8mm Rise:10 deg Length:90mm Color:silver