3T IONIC 25 LTD STEALTH｜Stealth design for the ideal rearward position

25mm setback and 0.5° incremental adjustment for a more natural position.

The "IONIC 25 LTD STEALTH" from [3T] is a carbon seatpost designed for precise fitting, combining a 25mm setback design with the unique "DiffLock" system.

Designed for riders who want to fine-tune not only the fore-aft position but also the saddle angle, the DiffLock system, which combines external 9.5° and internal 10° gears, enables precise angle adjustment in 0.5° increments.

It makes it easy to make fine adjustments like "I want to lower the nose just a little more" or "I want to bring the angle back just a little bit," naturally enhancing fit on road and gravel rides.

Furthermore, the 25mm setback specification makes it easy to create a more rearward position, which is excellent for long-distance and high-cadence rides.

The body is made of lightweight and highly rigid high-modulus carbon, and its excellent vibration absorption also improves comfort during long rides.

Another attractive feature is the UD gloss black finish, characteristic of a stealth model. It naturally blends in with bikes equipped with black components, enhancing the overall aesthetic.

This 3T high-end seatpost is recommended for those who seek both detailed fitting adjustments and a sophisticated appearance.

Features

• Equipped with 3T's unique "DiffLock" system for angle adjustment in 0.5° increments
• High clamping force due to tooth surface locking structure
• 25mm setback for rearward positioning
• Made of lightweight and high-rigidity high-modulus carbon
• Comfortable ride feel due to excellent vibration absorption
• Ideal for long rides and high-cadence riding
• Stealth design with UD gloss black finish
• Optimal for road, gravel, and endurance bikes

SPEC

• Brand: 3T
• Model: IONIC 25 LTD STEALTH
• Post Material: High-modulus carbon
• Head Material: High-modulus carbon
• Bolts: Stainless steel
• Setback: 25mm
• Finish: UD gloss black (stealth)
• Length: 280mm / 350mm
• Post Diameter: 31.6mm
• Weight: 185g (31.6 × 280mm)
• Note: Not compatible with carbon rails (DiffLock for OVAL rails required)

For those who really want to achieve a rearward riding position, this 25mm setback specification is quite user-friendly.

The combination with the fine angle adjustment provided by DiffLock is particularly excellent, offering the assurance that both position and angle can be precisely set.

Furthermore, the understated atmosphere unique to the stealth model is attractive, making it perfectly compatible with road and gravel bikes that feature black components.

This is a recommended choice for those who prioritize not only lightness but also fitting performance and overall aesthetic unity of their complete bike.