Randonneur Seat Post Rack® (unit)

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Seat post rack with dual attachment points to provide unequaled strength and stability.

Fits most bikes including road bikes with carbon seat posts.
Weight: 495g (unit)
Minimum clearance required between the seat rails and the top of the bicycle seat tube is 4 inches (10cm).
Click here to learn about the maximum load

Detailed Measurements

If the seat rails of your saddle are more than 3.5 inches (89mm) apart, you will need the following adaptor More Details…

Installation Instructions PDF

399 in stock


In stock

399 in stock


On & Off In Seconds

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All About The Arkel Radonneur Rack

This seat post rack is strong, light, stable, goes on and off in seconds and adjusts to fit both longer or shorter seat post set ups. A sleek quick release bracket attaches to both sides of the seat rails, forming rock-solid attachment points. The front of the rack gently envelopes the seat post with a soft rubberized clamp that is secured with a velcro strap. The three point attachment system of the Randonneur Seat Post Rack brings unequalled stability – it feels like it’s bolted on to the frame! Move it from bike to bike depending on what type of riding you want to do.

Versatility: Want to carry stuff, but don’t want a full-fledged bike rack? Before the Randonneur Seat Post Rack it was heavy beam racks that clamp hard on the post and rotate around it, or the flimsy and flapping, low capacity bags that clip on a tiny ring bolted around the seat post.

If the seat rails of your saddle are more than 3.5 inches (89mm) apart, you will need the following adaptor More Details…

More Features

With its dual attachment points, the Arkel Randonneur Rack is designed to combine both strength and stability with a very lightweight structure. The vertical load is carried by the seat rails while the seat post abutment point provides the exceptional lateral and vertical stability to the system. Moreover, the soft polymeric seat post bracket acts like a shock absorber to dampen shocks from rough road conditions. Click here to view the installation video.

Fits Most Bikes
The Randonneur Rack will fit most bikes with regular saddles. The minimum clearance required between the seat rails and the top of the bicycle seat tube is 4 inches (10cm) for the short setup and 7 inches (18 cm) for the long setup.

RAR - randonneur rack - Photo #15 Aluminum frame

Aluminum Frame and Reinforced Nylon Bracket
The outer frame is made of 10mm diameter aluminum tubing. The seat rails bracket is made of virtually unbreakable reinforced nylon.

RAR - randonneur rack - Photo #14 Shock absorber

Rubberized Seat Post Bracket Dampens Shocks
The Santoprene seat post bracket acts like a shock absorber to dampen the shocks from rough road conditions. Think of trying to drive a nail with a rubber mallet instead of a regular hammer. This greatly reduces the impact on your bike’s components not to say that your ride will be that much smoother.

 Exceptional Lateral Stability
While regular beam racks clamped solely to the seat post tend to rotate around the post when the rear of the rack is pushed sideways, the dual attachment points of the Randonneur Rack provide exceptional lateral stability.

Ideal for the TailRider
The Randonneur Rack is ideal for carrying our immensely popular TailRider, or any top rack trunk bag for that matter.

Gentle on Seat Rails
The reinforced nylon seat rails bracket is designed so that the nylon wings of the bracket will bend slightly if ever the quick release mechanism is over tightened. This protects the seat rails from dents or damage.

Gentle on Seat Post
The soft seat post bracket merely abuts against the seat post. It is not clamped hard on it like regular beam racks. There is no risk of denting the seat post and a simple wrap of electrical tape can be applied at the seat post contact area to keep a perfect finish to the seat post.


Maximum Load

We state a maximum load of 6 kg (13 lbs). The actual maximum load will be dictated more by the particulars of your bike than the actual capacity of the Randonneur Rack™, which can withstand more than the stated maximum load. So you may need to consult your seat and seat post manufacturers to verify whether or not they prohibit the use of such a seat post rack, in which case we recommend that you abide by those manufacturers instructions.


Carbon Seat Rails

Use of the Randonneur rack is fine with carbon seat posts, but it is not recommended with carbon seat rails.

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User Review
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Comments Rating 4.73 (19 reviews)

Additional information

Dimensions 42.5 × 15 × 5 cm


  1. Jason Alder July 22, 2020
  2. Francois September 13, 2019
  3. Photoguy November 30, 2018
  4. Prescott Old Timer April 6, 2018
  5. Larry C March 17, 2018
  6. CD December 9, 2017
  7. Commuter/Club Rider March 1, 2017
  8. Tim_P December 17, 2016
  9. John May 26, 2016
  10. Works great for lightweight rack May 19, 2016
  11. Jonathan May 4, 2016
  12. Marty December 27, 2015
  13. Michael November 1, 2015
  14. Evan Petersen September 30, 2015
  15. John Cook, "JDCBIKING" June 19, 2015
  16. Marty April 26, 2015
  17. McDuffy March 7, 2015
  18. Jeff September 16, 2014
  19. Kati July 17, 2014

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User Review
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