Stems are sorted by bar clamp size
All Thomson Stems can be flipped and run opposite their stated rise (upside down) giving you more fit options. The Thomson stem is machined from 7000 series aluminum. The stem is one-piece design with no welds or joints. The stem is designed to be very knee friendly. The rear of the stem has no lumps, grooves, or exposed bolts to hit your knee on. Every component of the Thomson stem, including the fasteners, is 100 percent American made. The Thomson stem is designed to have the best combination of stiffness, lightweight, strength, and durability.