Gemini Alsak Seatpost
Best lightweight upgrade for serious cross country mountain bikers.
This is a masterclass in weight reduction for riders who refuse to compromise on structural integrity. While the inability to cut the post demands precision during setup, the payoff is an incredibly stiff, versatile component that handles everything from gravel to road with absolute confidence.
$359.99
at
Power Meter City
More ÄLSAK options
Who it's for
- Weight-conscious racers seeking every possible uphill advantage
- Endurance riders wanting to reduce fatigue on rough terrain
- Boutique bike builders who value European craftsmanship and aesthetics
Who should skip it
- Budget-focused cyclists looking for a more economical upgrade
- Heavier riders requiring a more robust or overbuilt component
- Cyclists with specific bike fit requirements needing more adjustability
Performance breakdown
Weight Optimization
Class-leading mass reduction makes this an elite choice for weight-weenies.
Structural Integrity
Unishell carbon construction delivers impressive stiffness despite the featherweight profile.
Rail Compatibility
Seamlessly accommodates both standard round and oversized oval saddle rails.
Installation Flexibility
Fixed length design requires precise sizing and strict insertion adherence.
Hardware Quality
Premium titanium hardware ensures long-term corrosion resistance and weight savings.
Vibration Damping
Carbon layup effectively absorbs road chatter for a smoother ride quality.
Key Specs
Material
Carbon fiber and titanium
Weight
92 grams
Diameter
27.2 mm
Length
300 mm
Setback
0 mm
Maximum Rider Weight
264 lbs
Saddle Rail Compatibility
Round and oval rails
Bike Type Compatibility
Road Bike, Gravel Bike
Finish
Matte
Suspension
No
Know before you buy
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Ask Metto anything about the Gemini Alsak Seatpost before you decide.