Name: OS-99 CSI 6° 31.8mm 1"1/8
Brand: FSA
SKU: 413757
Price: 130.58 CHF
Availability: InStock

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The OS-99 CSI stem is a highly developed component specifically designed for road bikes and gravel bikes. Made from high-quality AL7075-T6 aluminum, this stem offers excellent strength and durability. The forged 3D and CNC machining ensure a precise fit and an appealing design. With a stem angle of 6°, it allows for an optimal riding position for the cyclist. The 3K carbon finish not only gives the stem a modern look but also contributes to weight reduction. Weighing only 118 g in the 100 mm variant, this stem is a lightweight and high-performance choice for demanding cyclists.

- Shaped cap with 4 clamp screws for added stability
- Use of titanium screws for weight reduction
- Compatible with fork steerer diameter of 1 1/8''
- Suitable for road bikes and gravel bikes.

Actual product image FSA OS-99 CSI 6° 31.8mm 1"1/8 (100 mm, 31.80 mm)

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The inner diameter of the fork is of interest for the steerer tube stem, as this must be inserted into the steerer tube, as already mentioned. The usual dimension at this point is 22.2 mm (= 7/8 inch).  Other dimensions are, for example: 25.4 mm (= 1 inch) or 28.6 mm (= 1 1/8 inch)

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