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THM Mandibula Round Seatpost
January 16, 2026$869.00
One of the lightest seatposts in the world! One of the lightest seatposts in the world. Only 159 grams
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THM Mandibula Round Seatpost
The THM Mandibula Round Seatpost is a top-tier carbon seatpost made for riders who want both comfort and performance. Crafted in Germany, it features a unique dual-zone design that combines vertical compliance with lateral stiffness, ensuring a smooth ride without compromising power transfer. Weighing as little as 159 grams, the THM Mandibula is one of the lightest seatposts in the world, making it a great choice for cyclists looking to reduce weight while enhancing ride quality.
Please note the Mandibula seatpost cannot be cut and the minimum insertion depth must be followed.
Product Details
Key Features of the THM Mandibula Seatpost
- Dual Zone Design: Offers vertical flex to absorb road vibration and reduce fatigue on long rides.
- Extremely Lightweight: One of the lightest performance seatposts available, weighing only 159 grams.
- Precision German Engineering: Made in Germany with THM’s unique carbon layup process and attention to a clean aesthetic.
Compatibility
The Mandibula fits 27.2 mm round seat tubes. It is compatible with 7×7 mm and 7×9 mm saddle rails. See Compatibility tab for more information.
Considerations
This seatpost is a premium choice and comes with a premium price tag. It is extremely lightweight and designed to be very comfortable, but is one of the more expensive seatposts available.
Advice From Our Staff
For cyclists seeking the ultimate in ride comfort without sacrificing stiffness or adding weight, the THM Mandibula Round Seatpost is as good as it gets. The PMC staff feels it’s especially well suited for endurance riders, racers tackling rough terrain and anyone with a high-end road frame looking to elevate their ride quality. If comfort and top-tier performance are your priorities, the Mandibula delivers.
Options For This Product
The THM Mandibula Round Seatpost comes in both 350 and 400 mm lengths.
Compatibility
- Frame: Compatible with frames that use a 27.2 mm seatpost diameter
- Saddle Rails: Works with 7x7 mm and 7x9 mm saddle rails
Specs
- Material: Carbon
- Seatpost Length: 350 mm | 400 mm
- Offset/Setback: 25 mm
- Weight: 350 mm - 159 grams | 400 mm - 172 grams
- Maximum Rider Weight: 110 kg
In the Box
- THM Mandibula Round Seatpost
- 7x7 and 7x9 mm saddle rail clamps
- Carbon fiber grip paste
Tools Needed
You will need the following tools for installation of this product. You can purchase many of these commonly used tools in our store.
Q&A
Have a question about this? Ask the staff.
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