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Service Course SL Seatpost - 2017 Model

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Zipp's Service Course SL Seatpost delivers amazing adjustability without the extra weight. The ample 20mm setback and micro-adjusting downward-facing bolts allow you to dial-in your perfect position with almost any saddle, and maximize power output with every pedal stroke.

The shaft and head are 3D-forged from a single piece of 7075 aluminum resulting in an impressive strength to weight ratio. The Service Course SL seatpost also uses titanium bolts and an intricate machining process to shave a few additional grams off the regular Service Course model.

Claimed weight for the Service Course SL seatpost is 270 grams. Available in 27.2mm and 31.6mm diameters. 330mm lengths. Available color: Gloss Black and Beyond Black.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.


Seatpost Type: Rigid 


Length: 350 mm


Clamp Type: Two Bolt 


Setback: 20 mm


Material: 7075 Aluminum 


Made in: Taiwan 

Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
Great Seat Post for a good price..
by Tim
Cycling Enthusiast
0 of 1 customers found this review helpful.

This seatpost is an excellent choice. Looks great too.

Reviewed 10/22/2018
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Good Seat Post
by Madison, NC Rider
Cycling Enthusiast
Madison, North Carolina
3 of 4 customers found this review helpful.

This seatpost is working well. It is easy to adjust and has me in a better position. It fits my bike well since I don't have a lot of exposed seatpost; a seatpost which angles back would not work. I was having some creaking from my saddle when I was using my prior seatpost with no set back but I no longer have any creaking. I don't know if this is from a better positioning of the saddle or if I have it tightened down better, I had greased the rails when I put it on my old seatpost.

Reviewed 4/24/2017
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