Zipp Service Course SL Seatpost 0 Offset

ZIPP Service Course SL Seatpost

Q: Which diameters and length does it come in?

25.4, 27.2, and 31.6 mm diameters, all in a 400 mm length.

Q: What’s the construction?

Unidirectional carbon shaft with an AL-7075 alloy head and a secure two-bolt clamp.

Q: Is it compatible with carbon saddle rails?

Yes. The two-bolt head is designed to work with common rail types; follow your saddle’s torque specification.

Q: How much does it weigh?

Approximately 233–246 g depending on diameter and offset.

$254.99

Seatpost Diameter: No selection

Seatpost Offset: No selection

Clear

Product Highlights

Zipp Service Course SL Seatpost — carbon shaft with AL-7075 head, 2-bolt micro-adjust clamp, and offsets in 0 mm or 20 mm for precise fit.

Diameters: 25.4 / 27.2 / 31.6 mm
Length: 400 mm
Weight: ~233–246 g (varies by size/offset)
Finish: Matte with stealth decals
Warranty: Zipp lifetime (riding-related issues)

Frequently Asked Questions

What offsets are available?

Two options: 0 mm and 20 mm.

Which diameters and length does it come in?

25.4, 27.2, and 31.6 mm — all in a 400 mm length.

What’s the construction?

Unidirectional carbon shaft with an AL-7075 alloy head and a secure two-bolt clamp.

Is it compatible with carbon saddle rails?

Yes. The two-bolt head is designed to work with all common rail types (check your saddle’s torque spec).

How much does it weigh?

Approximately 233–246 g, depending on diameter and offset.

Free Shipping $100+

Free shipping on all orders over $100 (before tax)
All orders are processed within 1 business day
Orders ship from our warehouse in Guelph, ON
Free shipping ranges from 2-6 business days depending on location within Canada
Expedited shipping options (which ranges from 1-3 business days) are available at checkout upon entering your shipping address
We ship with most major couriers, including Canada Post, UPS, Fedex, Purolator, Canpar, and ICS
Full shipping details can be found in our shipping policy

Returns & Exchanges

If your NOMAD purchase isn't quite right for you, you may return it for a refund within 30 days from delivery
Return items must be unused and accompanied by all original packaging, with both product and packaging in an undamaged state and all product tags intact
Refunds will be issued to your original form of payment within 2-5 business days of receipt of items at our distribution centre
We cannot accept returns or exchanges of the following items:
- Nutrition products
- Gift cards
- Water bottles
- Personal care items, such as body creams and lotions
- Items marked as clearance or final sale
Return shipping fees are the responsibility of the customer
Full return details can be found in our return policy

Overview

The Zipp Service Course SL Seatpost is built to deliver a precise fit and a smooth ride without excess weight. A unidirectional carbon shaft is paired with an AL-7075 alloy head and a secure two-bolt clamp, giving you reliable adjustment and long-term durability. Zipp backs it with a lifetime warranty for riding-related issues.

Ride feel & construction

Zipp tunes the carbon shaft for controlled flex, taking the edge off road buzz while still meeting stringent strength tests. The alloy head keeps hardware robust and serviceable, and the low-profile, two-bolt clamp makes tiny saddle angle or fore-aft tweaks simple—whether you run metal or carbon saddle rails.

Fit options

To hit your ideal position, the post comes in 0 mm and 20 mm offsets. Choose from 25.4, 27.2, or 31.6 mm diameters, all in a 400 mm length for generous insertion on road, gravel, or XC frames.

Weight & finish

Actual weights land around 233–246 g depending on diameter and offset, keeping the build responsive without sacrificing reliability. The post wears a clean matte finish with discreet decals that plays well with modern framesets.