Seat posts for all bikes

Rigid, telescopic, suspended or pivotal

The rigid post, made from aluminium or carbon, is the benchmark for road and city use: simple and lightweight, it requires no maintenance. The telescopic post, commonly used in mountain biking, lowers via a control on the handlebars to free the body when descending, then raises back up for pedaling. The suspended post incorporates a spring or a parallelogram: the Suntour NCX, with around fifty millimeters of travel, absorbs shocks from cobbles and trails, while the spring post XLC is selected based on the cyclist's weight. Lastly, BMX uses the pivotal system, where the seat is fixed with a single passing bolt.

The other components

The components come in various types:

• Saddles.
• Clamps.
• Adapters.
• Stems.
• Handlebars.
• Spacers.

All components are gathered on the peripheral components page.

Thomson, FSA, RockShox, Fox: what sets them apart

The Thomson Elite is machined in the USA from a block of aluminium, featuring a two-bolt saddle adjustment for precise tilt. The FSA K-Force in carbon, with a setback of twenty-five millimeters, can house the internal battery of an electronic Shimano Di2 drivetrain. For mountain biking, the RockShox Reverb AXS is cable-free, thanks to Sram's wireless protocol; its short-travel XPLR version is designed for gravel. The Fox Transfer from the Factory range, identifiable by its gold Kashima coating, remains cable-operated.

Diameter, length and minimum insertion

The diameter must match exactly to the tenth of a millimeter with the seat tube: twenty-seven point two on many road and city bikes, thirty point nine or thirty-one point six on most modern mountain bikes, and twenty-five point four on older frames. The length should leave enough post inside the frame once the saddle is at the appropriate height: the minimum insertion mark, engraved on the post, should never be visible. For a telescopic post, it's also necessary to measure the available depth in the frame to choose the longest travel possible.

The good deals

Good deals can also be found in the good deals, promotions, clearance, sales, and Black Friday. The new arrivals showcase the latest collections, and items shipped in 24h are prepared and dispatched within 24 hours. Major sales periods follow a regular order: the Black Friday in late autumn, the end-of-year holidays, winter sales, spring's French Days, then summer sales and back-to-school.

Frequently asked questions

Which saddle post for an electric city bike?

A suspended post adds comfort to an electric bike, which transmits shocks more at high speeds. Check the exact diameter of the tube and the weight range specified by the manufacturer for the spring.

How to measure the length of a saddle post?

Measure from the bottom of the post to the top of the bracket, excluding the saddle. Three hundred and fifty to four hundred millimeters are the most common lengths; a large frame or high saddle may require more.

Is it better to have a cushioned post or a full-suspension mountain bike?

The suspended post only cushions the saddle when seated: it improves comfort on a hybrid bike or a semi-rigid touring bike. A full-suspension bike keeps the rear wheel on the ground and also protects when standing and going down technical descents.

Why use installation paste on a carbon post?

This paste contains fine particles that increase adhesion between the post and the frame. It allows you to tighten the clamp less firmly, reducing the risk of slippage or crushing the carbon fibers.

How to maintain a telescopic saddle post?

Wipe down the shaft after each muddy ride and check that it raises properly. The manufacturer recommends a periodic service, to be entrusted to a workshop, which replaces seals and oil to maintain smooth operation.