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That position's there—you just have to find it.
SL. Superlight. SuperLeggera. No matter the language, SL translates as tuned, faster, lighter. Zipp's Service Course SL Alloy Seatpost is just that, a lighter version of their Service Course Seatpost. Two things create the 50g weight savings -- more aggressive machine work to remove excess material and the addition of titanium hardware.
Zipp uses a one-piece 3D forged design in 7075 aluminum to make the Service Course SL Alloy Seatpost stiff and strong. It also has a two-bolt clamp assembly that allows a wide range of angle adjustment to a fine degree so that you can perfect your saddle tilt. Once adjusted, the two-bolt assembly simply will not slip out of adjustment.
Zipp engineers paid special attention to the length of the clamp assembly. On the lower portion, they designed to be a bit longer than what you might see on other seatposts. This is to support the saddle rails if you ride with it in a rearward position. And in this day of superlight titanium and carbon rails, the extra support and insurance against saddle damage is a very good thing.
The Zipp Service Course SL Alloy Seatpost is 350mm long and is available in 27.2 and 31.6mm diameters. The clamp setback is 20mm.
- Low-profile clamp allows the saddle to slide farther back along the rails for more fit options
- Micro-adjustment with downward-facing bolts is accessible even if the saddle shell covers the top of the seatpost
- Shaft and head are 3D-forged from a single piece of 7075 aluminum for optimum strength
- More intricate machining than the regular Service Course post further reduces weight
- Titanium bolts ensure a feathery attachment
Share your thoughts
Can you tell me the distance from the top...
Can you tell me the distance from the top of the clamp to the minimum inserttion dept line on the 275mmx20mm setback version?