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25.4mm Diameter, 20mm Setback, White Decals
25.4mm Diameter, 20mm Setback, White Decals
25.4mm Diameter, 0mm Setback, Stealth Black Decals
25.4mm Diameter, 0mm Setback, White Decals
27.2mm Diameter, 0mm Setback, White Decals
25.4mm Diameter, 20mm Setback, Stealth Black Decal
27.2mm Diameter, 0mm Setback, Stealth Black Decals

Zipp Service Course SL Seatpost

Mfg PartNum:
$160.00
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The redesigned Service Course SL seatpost is a new carbon post from Zipp, specifically tuned to be more shock absorbing than the “comfort” seatposts on the market, while still passing their strict internal MTB strength test. The carbon tube is mated to a two-bolt 7050 aluminum head for precise and secure saddle adjustments.

Better fit means better performance, and if your saddle is out of position, you’ll waste energy with every pedal stroke. The secure, two-bolt clamp makes for easy micro-adjustments of saddle position, and the head has been redesigned for maximum bolt head accessibility. With 0mm and 20mm setback options, it’s possible for nearly any rider to achieve the perfect fit, and the clamp works with all saddle rail types.


Features:

  • 25.4, 27.2, and 31.6mm diameter.
  • 400mm length.
  • 0mm or 20mm setback.
  • 7.0Nm torque for saddle rails.
  • 100mm minimum insertion length.
  • Unidirectional Carbon / AL-7050 head.
  • Weight: 249g (20mm setback).

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 Clamp: 25.4 

Seatpost Clamp: 27.2 

Seatpost Clamp: 31.6 

Seatpost Type: Rigid 

Setback: 

Setback: 20 

25.4mm Diameter, 20mm Setback, White Decals

Mfg PartNum: 00.6818.034.000 

31.6mm Diameter, 20mm Setback, White Decals

Mfg PartNum: 00.6818.034.002 

25.4mm Diameter, 20mm Setback, Stealth Black Decal

Mfg PartNum: 00.6818.034.003 

27.2mm Diameter, 20mm Setback, Stealth Black Decal

Mfg PartNum: 00.6818.034.004 

25.4mm Diameter, 0mm Setback, White Decals

Mfg PartNum: 00.6818.035.000 

27.2mm Diameter, 0mm Setback, White Decals

Mfg PartNum: 00.6818.035.001 

25.4mm Diameter, 0mm Setback, Stealth Black Decals

Mfg PartNum: 00.6818.035.003 

27.2mm Diameter, 0mm Setback, Stealth Black Decals

Mfg PartNum: 00.6818.035.004 

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Reviewed 10/23/2020
by Anonymous
Cycling Enthusiast
Michigan
Value Rating
Overall Rating
Zipp is always good

I bought it for increased comfort over aluminum. Is it? I think so. Cheaper than Cannondale C2 but still expensive

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Reviewed 6/20/2020
by Joey
Cycling Enthusiast
midwest
Value Rating
Overall Rating
Not robust enough for hard use.

It worked well for about a year of very hard riding on every type of surface from smooth pavement to rough single track. In that year over 3,000 miles of mostly gravel in the Rockies and Midwest were covered. The clamp that holds the saddle cracked and bent. Fortunately I caught it before it broke. I use a torque tool when tightening.

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Reviewed 2/14/2019
by Greg
Oregon Coast
Overall Rating
1 of 1 customers found this review helpful.
Great zero offset 25.4 mm post for Cannondale

I needed a nice zero offset post in the harder to find 25.4 mm dia. for my 2018 Cannondale Synapse and this post fit the bill perfectly!! Quality is great, the ride is just as comfortable as the original SAVE carbon post, and zero offset lets me get into my preferred position on the bike! Im sure the offset version would be just as excellent for those replacing or upgrading!

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Review for Zipp Service Course SL Seatpost - 2017 Model
Reviewed 10/22/2018
by Tim
Cycling Enthusiast
Pennsylvania
Value Rating
Overall Rating
0 of 1 customers found this review helpful.
Great Seat Post for a good price..

This seatpost is an excellent choice. Looks great too.

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Review for Zipp Service Course SL Seatpost - 2017 Model
Reviewed 4/24/2017
by Madison, NC Rider
Cycling Enthusiast
Madison, North Carolina
Value Rating
Overall Rating
3 of 4 customers found this review helpful.
Good Seat Post

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.

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Reviewed 1/31/2019
by SolidState
Daily Commuter
Portland, OR
Overall Rating
1 of 1 customers found this review helpful.
Cannondale Fit Savior!

I needed a zero offset seatpost that would fit a carbon Cannondale Synapse, and this was the unicorn that saved my bike fit. Not only that, but it's proved to be comfortable, durable, and handsome piece of kit on the bike. I recommend this to anyone who needs a carbon zero offset post that doesn't break the bank!

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