FSA

FSA OS-115 Stem — 120mm, 31.8mm Clamp, ±6°, 1-1/8" Threadless, Carbon Faceplate, Black

$30.99 USD
Regular price
Unit price
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Pay in 4 interest-free installments of $133.12 with

The FSA OS-115 is a stiff, lightweight threadless road stem with a cold-forged aluminium body and a 4-bolt carbon-fiber faceplate for secure, precise 31.8mm handlebar clamping.

Stiff, light alloy stem with a carbon faceplate — genuine FSA, brand new.

Will it fit? 120mm length, 31.8mm bar clamp, for 1-1/8" (28.6mm) threadless steerers, with a ±6° flip-flop rise. Fits 31.8mm road, gravel/CX or MTB bars. Not for 1" or 1-1/4" steerers or 25.4/26.0mm bars.

Key Specifications

Brand FSA (Full Speed Ahead)
Series OS-115
Model OS-115
MPN 175-3320
UPC 4710636251306
Type Stem
Length 120mm
Bar Clamp 31.8mm
Steerer 1-1/8" (28.6mm)
Rise ±6° (flip-flop)
Stack Height 35mm
Faceplate 4-Bolt Carbon Fiber
Material AL2014/T6 Aluminium, cold-forged
Hardware Titanium
Weight 140 g (4.9 oz)
Color Black
Country of Origin Taiwan
Condition Brand new — original FSA retail packaging

Technology Highlights

  • ✓ Cold-forged AL2014/T6 body for stiffness and low weight.
  • ✓ 4-bolt carbon-fiber faceplate for secure bar clamping.
  • ✓ ±6° flip-flop rise for fit tuning.
  • ✓ Titanium hardware throughout.
  • ✓ CNC-detailed for weight savings.

What's in the Box

  • 1 × FSA OS-115 stem (120mm, 31.8mm)
  • 4 × carbon faceplate bolts
  • Original FSA retail packaging
Brand new in retail packaging. Ships from Ontario, California (US domestic) · Estimated delivery 3–5 business days · Free 30-day returns.
FSA OS-115 Stem — 120mm, 31.8mm Clamp, ±6°, 1-1/8" Threadless, Carbon Faceplate, Black
$30.99 USD
Regular price
Unit price
per

FSA OS-115 Stem — 120mm, 31.8mm Clamp, ±6°, 1-1/8" Threadless, Carbon Faceplate, Black