Axiom Trekk Seat Collar Clamp with Rack Mounts - TheBikesmiths
Axiom Trekk Seat Collar Clamp with Rack Mounts - TheBikesmiths

Axiom Trekk Seat Post Collar Clamp with Rack Mounts

$11.94 USD $17.99 USD Save $6.05 USD

Axiom Barcode: 058817765544

Specifications:

  • Accessories : Rack Parts and Accessories
  • Category : Bike Rack Parts
Choose from 34.9mm, 31.8mm, 29.8mm or 28.6mm seat tube frame diameter
  • Adds rack mounts to bikes without upper strut brazons  
  • Forged aluminum. 
  • Replaces stock seatpost collar found on most bikes.
  • Clamp design minimizes stress on frames and seatposts.
  • Creates two 5mm upper rack eyelets on almost any frame
Be sure to measure the outside diameter of your frame's seat tube. Your seatpost size is going to be smaller than the diameter needed for this clamp to fit over your seat tube. Seatpost size is not the same as seat clamp size. 

Questions & Answers

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  • I have a Haro2. I pulled the seatpost and it says 30.9mm. Which collar clamp size should I be purchasing? 29.8mm or 31.8mm? Neither size is exact fit. I was thinking 29.8mm and stretch it open a bit? I don't know if that is possible.

    The key measurement is the frame’s outside seat tube diameter. Depending on the constitution and material, the thickness of the seat tube can differ from frame to frame. Even frames with the same seatpost, may have different seat tube clamp. A seatpost fits inside a seat tube. The seatpost size is going to be smaller than the diameter needed for this clamp to fit over your seat tube.