• 3T Ionic 25 Pro Setback Alloy Seatpost

        • $45.99 45.99
        • RRP $101.49
        • Save 55%
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3T Ionic 25 Pro Setback Alloy Seatpost

Ionic is a new seatpost design featuring the sophisticated and robust, 3T‑exclusive DiffLock seat clamp. Ionic‑25 places the seat clamp assembly 25mm behind the seatpost's centerline.

This gives athletes the option of a more rearward position on today's shorter framesets. The splined alloy DiffLock coupling is a highly-accurate method of setting saddle angle needing only lightweight clamping by side-mounted bolts. It is especially useful for fine adjustment of saddle setback, which can be done without impacting saddle angle.

Ionic‑25 Pro is fabricated in aluminum alloy with a shot-peened, black-anodized finish and the white 3T Pro stripe.


  • Weight: 235g (31.6mm x 280mm)
  • Length: 280, 350mm
  • Diameter: 27.2, 31.6mm ∅
  • Material: AL-Alloy
  • Bolts: Stainless steel
  • Saddle Clamp: Alloy DiffLock™
  • Setback: 25mm
  • Certification: CEN
  • Note: Standard DiffLock seat clamp fits only saddles with 7-mm ∅ round-section rails. Saddles with oval rails require oval-rail clamp caps.
  • Buy 3T Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

    • Delivery cost $9.99
    • Delivery toUnited States of America
    • 365 Days return or exchange

      If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.

      More information on returns
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    • Colour: Black - White
    • Length: 280mm, 350mm
    • Material: Alloy
    • Diameter: 31.6mm

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