• 3T Ionic 0 Pro Inline Alloy Seatpost

        • $39.49 39.49
        • RRP $101.49
        • Save 61%
    • Select Colour
      Select Diameter
      Select Length

3T Ionic 0 Pro Inline Alloy Seatpost

Ionic is a new seatpost design featuring the sophisticated and robust, 3T‑exclusive DiffLock seat clamp. Ionic‑0 places the seat clamp assembly in line with the seatpost for zero setback.

Many athletes seeking outright speed favor this more forward position on the bike. Some frame designers are also specifying a slacker seat tube so riders can set their bike up with an inline post, which is lighter than a setback post. 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‑0 Pro is fabricated in aluminum alloy with a shot-peened, black-anodized finish and the white 3T Pro stripe.


  • Weight: 230g (31.6mm x 280mm)
  • Length: 280, 350, 420mm
  • Diameter: 27.2, 31.6mm ∅
  • Material: AL-alloy
  • Bolts: Stainless steel
  • Saddle Clamp: Alloy DiffLock™
  • Setback: 0mm
  • 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
    • Pay by Bank Transfer, PayPal or Card


    • Colour: Black - White
    • Length: 420mm, 280mm
    • Material: Alloy
    • Diameter: 31.6mm

    Interested in 3T Seatposts?

    Seatposts Buying Guide

    • We've got everything you need to know in our buying guide.

    Also Consider...

    Also Recommended...