FSA OS 115 Stem -- $109.95 -- Length-specific wall thickness + extensive CNC detail for weight savings 100% CNC machined final shape for maximum tolerance control. Cold forged body in AL7075/T6 for optimum grain alignment. Shot-peened shaft for maximum fatigue life Carbon fiber composite 4-bolt front clamp Ti 6/4 hardware with TiPrep™ Sizes: ± 6° x 100, 110, 120, 130mm Ø31.8mm handlebar clamp only 35mm fork clamp stack height 138 grams
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FSA OS 150 Carbon Stem -- $74.95 -- The OS 150 us 3-D forged then CNC machined from AL6061-T6 and has a 4 bolt carbon face plate. Sizes: ± 6° x L90, 100, 110, 120, 130mm 31.8mm handlebar clamp 35mm fork clamp stack height 155 grams 3-D FORGED CNC MACHINED ALLOY W/4 BOLT CARBON CLAMP/6 DEG REV/ROAD OR ATB
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FSA OS 190 Stem -- $29.95 -- The OS 190 is 6061-T6 forged with a 6 degree reversible angle and uses a 4 bolt clamp and chromoly hardware. Sizes: ± 6° x L90, 100, 110, 120, 130mm 31.8mm handlebar clamp 35mm fork clamp stack height 175 grams (OS140 shown uses the same dimensions and design as the OS 190.)
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FSA OS 99 CSI Stem -- $134.95 -- The FSA OS 99 CSI stem takes the standard alloy OS 99 with its 3-D Forged and CNC Machined design and titanium hardware and adds a 3K carbon wrap to dampen vibration. 118 grams 3-D Forged and CNC Machined 7050 Alloy 3K Carbon Weave Wrapped 4 Bolt SL Face Plate Titanium Hardware 6 Degree Reversible
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FSA OS 99 Stem -- $79.95 -- The lightest FSA stem at 98 grams features 3-D Forged and CNC Machined 7050 Alloy along with titanium hardware. 98 grams 3-D Forged and CNC Machined 7050 Alloy 4 Bolt SL Face Plate Titanium Hardware 6 Degree Reversible
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