The USE Alien seat post has been the market leader in the lightweight performance sector for six years. The Alien has continually evolved with the latest being the Alien Cyclops. Using a larger (3mm hex key) single bolt central to the clamp design, the Alien Cyclops makes adjustment easier and faster. The new Cyclops design is stronger than ever and is even 5g lighter. The Alien Cyclops has a unique one-key release mechanism that makes re-adjustment as simple as a turn of the hex key.

New Triathlon / Time Trial Aero carbon features forward position clamp to help perch more aerodynamically and aid transitions to running if a Tri-athlete. Clamp parts and Alien Hook have been hard anodized giving maximum anti-corrosion from salt-water body run-off after Triathlon open water swims.

The position of the rider is critical. The Triathlon Alien Aero offers the rider up to 8mm layback (12mm less than a standard Aero Alien).

The Triathlon Alien Aero seat post is designed for the rider who says speed is everything. The Aero post has undergone strict CFD testing to ensure the optimum shape is obtained. Not only is it the fastest post in the range it's got to be one of the best looking.

Before any Aero post leaves our factory, we ensure it passes our NDT (Non Destructive Testing) facility. All this analysis and testing ensures that the Aero post is chosen by champions.

CONCEPT

• Ultimate lightweight Aerodynamic seat post
• Designed for the performance rider
• To perform on the world stage (Alien: 2 X Tour de France King of the Mountain and multiple MTB World Cup victories)
• Chosen by the worlds best athletes who do not compromise

TECHNOLOGY

• Utilises the latest carbon and manufacturing techniques
• Hand molded carbon tube
• At the forefront of technology and engineering excellence
• In house testing
• Development and testing support from Giant, Specialized and Cannondale
• All tubes are NDT tested before they leave our factory

MATERIAL

• Tube - Full hand molded carbon construction
• Graphics - tough and durable
• Head / Clamp - Extruded (except the bolt on the clamp) 7075 T6 Aluminum
• CNC'd 7075 T6 Aluminum
• Strong and lightweight materials
• Anodized Aluminum parts - up to 45 microns
• 3M bonding techniques and methods

PERFORMANCE

• World-class athletes through to amateurs
• Time trial & triathletes
• Alien: 2 X Tour de France King of the Mountains
• Alien: Multiple MTB World Cup victories
  

ALIEN TRIATHLON AERO CARBON

• Weight: 168g (27.2 / medium)
• Diameter: Available 27.2mm
• Length: S (250mm) / M (310mm) / L (365mm) / XL (400mm)
• Material: Carbon Tube / CNC'd 7075 T6 Aluminum head & clamp
• Finish: Satin Carbon / Hard anodized
• Layback / Offset: 8mm (Alien Cyclops Clamp).
• Cyclops Clamp (5g lighter than twin bolt Alien clamp) Hard Anodized

How do I know what size Aero Tri seat post I need?

Measure the top of the seat tube to the centre of the rail, then use the information below to find the correct size Aero Tri seat post.

Small: 130mm - 190mm
Medium: 185mm - 240mm
Large: 235mm - 280mm
X Large: 275mm - 310mm

Example 1: 225mm of seat post showing will need a Medium.
Example 2: 245mm of seat post showing will need a Large.