Giant Contact SL Aerolight Stem - 110mm, -10°, OverDrive Aero

31.8mm Bar Clamp | D-Shaped OverDrive Aero Steerer | Integrated Cable Management | TCR / Defy / Langma / Avail

Giant's premium alloy road stem engineered exclusively for frames fitted with the OverDrive Aero steerer - Giant's proprietary D-shaped 1-1/4" steerer standard used on current generation TCR, Defy, Liv Langma, and Liv Avail models. The Aerolight integrates the stem cap, spacers, and head tube into a unified aerodynamic silhouette, with internal cable routing that guides all cables under and through the stem for a completely clean cockpit. If your frame uses an OverDrive Aero steerer and you want the full integrated aero look, this is the correct stem.

Important - OverDrive Aero steerer compatibility: This stem fits the D-shaped OverDrive Aero steerer only. It is not compatible with standard round 1-1/8" steerers, OverDrive 2 (OD2) tapered steerers, or any non-Giant/Liv frame. Check your frame's steerer specification carefully before purchasing.

Key Features

• OverDrive Aero steerer only: Engineered for Giant's D-shaped 1-1/4" proprietary steerer standard - delivers exceptional front-end stiffness and steering precision
• Integrated aero cable management: Cables route under and through the stem body for a clean, aerodynamic cockpit with no external cable housing visible at the stem
• Unified aero silhouette: The stem cap and spacers integrate with the head tube for a seamless, aerodynamic line from head tube to bars
• Ultra-light alloy construction: SL designation indicates lightweight alloy - stiff and light without the cost of carbon
• -10° angle: Aggressive road position - drops the bars relative to the steerer for an aerodynamic, race-oriented fit
• Fits Contact Aero and Contact D-Fuse handlebars: Designed to work with Giant's current aero handlebar range for full system integration

Specifications

• Brand: Giant
• Model: Contact SL Aerolight
• SKU: 170000296
• Length: 110mm
• Angle: -10°
• Bar clamp diameter: 31.8mm
• Steerer clamp: D-shaped OverDrive Aero, 1-1/4"
• Stack height: 40mm
• Material: Alloy
• Includes: Stem cap and bolt
• Barcode: 4713250054056

Compatible Frames

✓ COMPATIBLE WITH:

• Giant TCR (current generation with OverDrive Aero steerer)
• Giant Defy (current generation with OverDrive Aero steerer)
• Liv Langma (current generation with OverDrive Aero steerer)
• Liv Avail (current generation with OverDrive Aero steerer)

✗ NOT COMPATIBLE WITH:

• Standard round 1-1/8" steerers - the D-shaped clamp will not fit a round steerer
• OverDrive 2 (OD2) tapered steerers - a completely different standard despite the similar naming
• Any non-Giant/Liv frame - OverDrive Aero is a Giant-proprietary steerer standard

Not sure if your frame uses OverDrive Aero? Check Giant's website for your specific frame year and model, or feel free to message before purchasing.

Condition

New: Original Giant handsell packaging.