Zipp’s SL Sprint Stem in 90mm length (±12°) is a unidirectional carbon Exogram sprint stem built for maximum stiffness under WorldTour‑level power. It fits 1-1/8 in (28.6 mm) steerers and 31.8 mm handlebars, includes an aero top cap that blends into the body, and uses a four-bolt Torx T25 faceplate. Matte black with stealth logos (current A3 graphics) and compatible with the SL Sprint‑specific Zipp Quickview integrated computer mount (sold separately). Stack height is 41 mm (1.61 in).

• 90mm length (3.54 in); ±12° angle (can be flipped).
• 31.8 mm handlebar clamp; 1-1/8 in (28.6 mm) steerer clamp.
• 41 mm stack height (1.61 in).
• Unidirectional carbon Exogram construction; steel Torx T25 hardware.
• Includes aero stem cap that blends into stem body.
• Matte black with stealth logos (A3).
• Compatible with Zipp Quickview integrated computer mount (sold separately).
• Model ID ST-SL-SPNT-A3; Mfg PartNum 00.6518.043.000 (90 mm).
Weight: 165–174 g depending on length; manufacturer weight 167 g based on 100 mm; specific 90 mm weight not specified (165 g retailer listing) (~5.8–6.1 oz).