3T Ionic 25 Ltd High Modulus Road Bike Seat Post
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3T Ionic 25 Ltd High Modulus Road Bike Seat Post
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Code: 3T-3008BXAQ38H
3T Ionic 25 Ltd High Modulus Carbon Road Bike Seatpost

Ionic is a new seatpost design featuring the sophisticated and robust, 3T–exclusive DiffLock seat clamp. Ionic–25 places the seat clamp assembly 25 mm 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 Ltd is a monocoque in high-modulus carbon-fibre, finished in UD Gloss Black with the 3T Ltd silver stripe.



  • Weight: 185g (31.6mm x 280mm)
  • Material: HM carbon fibre
  • Bolts: Stainless steel
  • Setback: 25mm