Description
Product Description:
The FSA Energy OS‑99 stem is a lightweight, high‑performance alloy stem designed for road, gravel, and XC mountain bike setups. Built from 6061‑T6 aluminum, it offers excellent stiffness, precise steering feel, and a clean, low‑profile design.
With a 110 mm length, 31.8 mm bar clamp, and ±6° rise, this stem is ideal for riders seeking a balanced, responsive cockpit. These stems are OEM, brand new, never installed, and supplied without retail packaging.
Key Features:
• Brand: FSA
• Model: Energy OS‑99
• Stem type: Threadless
• Length: 110 mm
• Clamp diameter: 31.8 mm
• Steerer tube diameter: 1‑1/8″
• Rise: ±6°
• Material: 6061 aluminum
• Color: Black
• Weight: 126 g
• Country of origin: Taiwan
• Condition: New OEM, never installed
• Includes: Stem
• MSRP: $109.99
Fitment Details:
• Compatible with road bikes, gravel bikes, cyclocross bikes, and XC mountain bikes
• Works with any 31.8 mm handlebar
• ±6° rise allows fine‑tuning of reach and bar height
• 110 mm length provides stable, predictable steering for endurance and performance riding
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