Profile Design H20 Quill

No, this stem is designed for a 26.0mm handlebar clamp diameter. You will need to use a 26.0mm bar or a shim if you are attempting to adapt it, though we recommend matching the clamp size for safety and fit.

The ovalized shape is engineered to increase the stem's lateral rigidity, which helps reduce flex when you are climbing out of the saddle or sprinting. It also provides a slight aerodynamic benefit compared to a standard round profile.

Yes, it is compatible with standard 1-inch threaded headsets. The extended quill allows for a greater range of vertical height adjustment, which is helpful if you are trying to fine-tune your handlebar height on a vintage or classic-style road frame.

The stem weighs 245 grams. While not the lightest option on the market, its cold-forged 6061-T6 aluminum construction prioritizes long-term durability and structural integrity.

Not at all. While four-bolt faceplates are common on modern threadless stems, this two-bolt design is standard for quill stems and makes it straightforward to install or remove your handlebars without completely disassembling the clamp.