Seatposts

On today's road bikes, silver stands out amid the sea of stealthy black color schemes. This time-honored seatpost color is available on the Zipp Service Course Seatpost. Since the introduction of our line of Service Course and Service Course SL components, we've had amazing success with our pro-level athletes in all disciplines. While the successes have reinforced our design decisions, we have also drawn from their feedback. We not only learned how and why athletes make their equipment choices, but how our manufacturing methods and materials affect product performance. With new knowledge as well as new engineering, we are proud to offer redesigned Service Course seatposts. - Material: 6061 aluminum - 2-bolt adjustability - Minimum insertion length: 90mm

A reliable dropper seatpost with a 3-key chassis design that minimizes shaft play for a post that provides smooth and consistent travel adjustment. Get up to get down  The Bontrager Line 34.9 dropper seatpost offers reliable and infinite adjustability within multiple dropping ranges to suit riders of all types. A 3-keyed chassis design provides additional lateral rigidity and minimizes play while a 2-bolt rocker head is perfect for fine-tuning saddle tilt. Line 34.9 is also designed with a shorter overall length, which allows more adjustability and frame compatibility. Need an even shorter drop? Grab a 10mm or 30mm travel reducer spacer. PRODUCT DETAILS - Air-sprung hydraulic locking cartridge offers infinite adjustability within dropping range - 3-key chassis prevents rotation for a stable ride - 2-bolt rocker head with micro adjustment allows for easy saddle tilt adjustment - Shorter overall length [versus previous version] allows more adjustability and compatibility - Fine-tune your fit fast and easy with 10mm and 30mm travel reducer spacers - Lever sold separately. Compatible with Universal Lever, Under Bar Lever, and Elite Under Bar Lever - Internal cable routing keeps housing tucked away and free from moving wheel - Frame must be compatible with internally routed seatpost routing

The carbon Service Course SL seatpost is specifically tuned to be more shock absorbing than the "comfort" seatposts on the market, while still passing our strict internal MTB strength test. Flex engineered into the lightweight carbon tube keeps the rider comfortable over any terrain. 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. The Service Course SL seatpost makes it possible for nearly any rider to achieve the perfect fit, and the clamp works with all saddle rail types. - Distinctive Zipp cosmetics - Unidirectional Carbon fiber tuned for ride comfort - Lightweight clamping system - Lifetime warranty

The lightest, longest, smoothest, and most reliable dropper post that will fit your bike. The V3 is the lightest infinitely-adjustable dropper post on the market, it has the shortest total length and stack height of any dropper post, an extended 350-hour service interval, and new ultra-low friction IGUS® bushings and SKF® seals. Plus, save an additional 10g with our Titanium Bolt Upgrade Kit.

Dimension Suspension Seatpost - Clamp Style: Std Rails - Diameter: 27.2mm - Length: 350mm - Material: Aluminum - Max Height: 255mm - Min Height: 130mm - Offset (mm): 0mm - Seatpost Type: Suspension - Travel (mm): 35mm - Weight: 450g

Aerodynamic design. Genuine replacement parts Original equipment integrated seatpost. Aerodynamic design. - Color matched for direct compatibility - 7mm round and 10mm oval saddle rail clamp ears sold separately

Trek-compatible seat mast cap Offered in white and black and a variety of lengths and offsets, the mast cap includes hardware compatible with round saddle rails only. 7x10mm carbon rail-compatible hardware sold separately. Key features: - Ultra-light carbon construction - One bolt head design offers easy fore-aft and infinite angle adjustment - Compatible with all Trek road bikes with round seat masts - 175mm and 135mm lengths - 5mm and 20mm offsets - Aluminum clamp

The latest generation Thudbuster ST is superior to its predecessor in every way. Building on Thudbuster's proven parallel linkage technology we have completely re-designed the seatpost for increased durability, a higher rider weight limit, and additional suspension travel, as well as ease of use through tool-free elastomer change and a single-bolt seat clamp design. By improving on this already legendary design, we're confident to say that the newest generation Thudbuster is the most advanced suspension seatpost ever made. - Travel: 50mm - Weight: 580g - Max Rider Weight: 330lbs

Sleek design and ultimate functionality of the WCS 1-Bolt seatpost are the hallmarks of Ritchey design. Single bolt-actuated side load clamp offers easy adjustability and simple security in a post that works as nicely as it looks. - 3D Forged 7050 Alloy - Available in 27.2, 30.9 and 31.6mm diameters - Available in 350 and 400mm lengths - 20mm Offset - 7x7mm saddle rail clamp included - Interchangeable clamps available for carbon rail saddles - Saddle Clamp Torque Spec: 12Nm - Finish: Blatte - 195g (27.2/350)

The Reverb Stealth features Vent Valve Technology for super simple service if the need arises. Redesigned internals provide effortless actuation and increased reliability. With reduced overall post lengths and new travel options, riders of all shapes and sizes benefit from more travel than ever before. The new Reverb Stealth redefines what it means to simply go up and down. - Shorter overall post length - Stealth Internal cable routing

Get back on the road with a genuine replacement seatpost. - Genuine replacement parts - Original replacement seatposts for your Madone SL/R. PRODUCT DETAILS - Ultra-light carbon construction - Aerodynamic design - 7mm round, 9mm oval, and 10mm oval saddle rail clamp ears sold separately

The EA70 AX dropper post joins our AX series of horizon-expanding drop bar gravel and adventure componentry. Features include a reliable cartridge design, internal routing and availability in two lengths - 350mm and 400mm. Our EA70 AX post brings 50mm of drop, allowing for fitment on everything from your wide-tired CX bike to modern gravel bikes. - Can be paired with drop bar optimized levers or drop bar compatible shifters - Cable attaches from either direction for compatibility with all dropper levers - Two lengths for better fitment on dropped top-tube gravel bike frame designs - Finish: Black Ano - Weight: 350mm - 400g - Head Offset:0mm - Drop: 50mm - Quill Sizes: 27.2mm Diameter - Material: EA70 Alloy

The all-new Highline delivers infinite adjustment, smooth feel, and easy installation for any bike. Details - Shorter insertion length to fit more bikes - Premium Trelleborg sealing - Exclusive Igus LL-glide bearings and keys - Jagwire cable and housing - Self-contained IFP hydraulic cartridge - Internal routing - Quick connect mechanism for ease of cable installation - Linear actuator for quick return speed - 2-bolt quick-connect head - Remote sold separately

The Chester seatpost from Race Face is a durable, no-nonsense post that can take on rock gardens and plenty of rough landings while still leaving bills in your pocket for aprés ride festivities. Features • Seat tube drawn from 6061 Alloy • Proven dual bolt, multi-adjustable head design. • Shot peened for high impact strength & fatigue resistance.

Saddle Up Based on the latest FOX Transfer platform with its proven performance, the new Turbine R Dropper Post features a slick seat clamp design for reduced stack height and a 25g weight savings from the previous version. This post will treat you right. Less is More New, patent-pending FOX seat clamp design dramatically reduces stack height, allowing you to fit more travel into a shorter space. Full Coverage Proven FOX-designed internals provide infinite height adjustment, but perhaps more importantly—even easier serviceability. No-Sweat Installation Mounting a saddle and getting your saddle position dialed is easy thanks to the user-friendly seatpost clamp. Brilliantly Uncomplicated Uses standard shifter cable and housing. You know, just to keep things real. Oh yeah—it's also 25g lighter than the previous version. - Compatible with Matchmaker - Includes post only - Mechanical lever actuation - Head Type: Zero Offset—2 Bolt - Weight: 520g

- Built on the revered FOX Transfer platform, the Turbine R Dropper Post has infinite height adjustment with up to 175mm of drop Specs: - Seat Post Diameter: 31.6mm - Travel: 200mm - Cable Routing: Internal

Carbon seatpost with a proven low-profile, 2-bolt clamp that won't bottom out on the saddle. - Low-profile clamp reduces stress on lightweight rails - 2-bolt design securely holds the saddle in place and is easy to adjust - Offset: 25mm - Clamp Style: Standard Rails - Material: Carbon

The new Reverb AXS XPLR dropper post delivers more control, confidence, and fun on gravel roads everywhere. Getting the saddle out of the way means more room to move, saving you from awkward maneuvering and sketchy descents. We created an all-new design complete with lightweight air-only internals featuring built-in compliance we call ActiveRide. It's like travel for your saddle. Enabled by SRAM AXS technology, Reverb AXS XPLR is part of the ultimate personalized cockpit. - New 27.2mm Reverb AXS XPLR delivers more control, confidence, and fun for gravel - ActiveRide—Air only internals provide a fully rigid top-out position. With the touch of your AXS controller, you've got built-in compliance to ensure comfort and control over the roughest sections of gravel - Two travel options to choose—50mm or 75mm - Saddle clamp options compatible with 7x10 oval carbon rails. - Seat post length includes 400mm and 350mm (50mm drop only) - AXS Technology allows rider customization via the AXS Mobile App - AXS handlebar controls (drop or flat bar) - Shared battery with all other SRAM AXS enabled components - System is completely waterproof and dustproof to IP69K—take it anywhere - SRAM AXS battery and charger included SPECIFICATIONS: - TRAVEL: 50mm, 75mm - POST DIAMETER: 27.2mm - POST LENGTH: 350mm, 400mm - REMOTE: AXS Controller Sold Separately - SADDLE RAIL COMPATIBILITY: Round/Oval (7x9 & 7x10), Round/Oval (7x9) - WEIGHT (G): 562 - WEIGHT BASED ON: 75mm Travel 400mm Length W/O battery - Battery 25g

Whether it's a cross remount, an unexpected pothole, or a rough line down the trail, the WCS Zero post will not relinquish its position. Featuring a confidence-inspiring extra-secure fore/aft bolt system, the Zero post is second-to-none in ease of installation and fit adjustment. - Fore/aft adjustment bolts for precision adjustment and secure clamping - 3D Forged 2014 Alloy - Offset: Zero - Cradle: Standard saddle rail clamp

- Anodized silver clamp with an anodized and fluted grooved post - Length: 350mm - Material: Alloy - Setback: 25mm

- Chromoly construction - Classic BMX Lay-back design - Material: Cro-Mo

- PIVOTAL compatible - Polished stainless steel shaft - Durable and weather resistant finish - Reinforced shaft design for strength - Outer Diameter: 25.4mm - Length: 250mm - Setback: 0mm

- PIVOTAL Compatible - Ultra-light 6061 forged alloy construction - Reinforced wall construction - Setback: 0mm

The Transfer rises again with a full redesign, making it smoother and more robust than ever before. With easier actuation, enhanced serviceability and greater tunability, the 2025 Transfer gets an overall edge over the competition. Now travel adjustable in 5mm increments and available up to 240mm of drop. The best-of-the-best technology is available in the Factory Series models, featuring buttery smooth, ultra durable Genuine Kashima Coat. - Fully redesigned hydraulics of the 2025 Transfer feature an entirely new sealing system for enhanced durability. The full-service interval is now at 300 hours, which most riders can do with the tools in their garage - Metal-backed EKONOL (PTFE/Teflon) bushings to achieve tight tolerances and the lowest possible friction to allow easier actuation - The placement of the new air chamber allows riders to recharge and adjust air pressure through a Schrader valve under the seat clamps. Tune to your preferred return speed or adjust for environmental factors such as altitude or ambient air temperature. A metal valve cap with O-ring (the same we use on FOX suspension) ensures zero air leaks through the valve - Low stack height and 2-bolt clamp design that riders loved from the previous Transfer, while improving aesthetics and keeping weight to a minimum - Wider range of options, with up to 240mm of drop, and adjustable travel (up to 25mm in 5mm increments) - Cable actuated with tool-free quick disconnect for easier installation and removal, low lever force provides consistent actuation pressure even with saddle weighted or unweighted - Remote lever sold separately

Such Great Heights The budget-friendly Aeffect R Dropper Post is a rock-solid, shred-ready entry into the dropper post world. Designed right to keep you on the trails and out of the shop as much as possible, you'll wonder how you ever rode without one. It's What's Inside That Counts The brains of this dropper post are an extremely reliable cable-actuated hydraulic cartridge that delivers infinite adjustment within its travel. Simple Saddle Setup A user-friendly zero-offset seatpost clamp really cuts down on the time between setting up your saddle and ripping down the trail.

Our lightest seatpost ever The RSL 31.6 Seatpost is a strong, light, and compliant OCLV Carbon seatpost with a 2-bolt clamp that offers secure, no-slip saddle positioning for mountain bikes. Designed for weight-savings and durability, the RSL 31.6 Seatpost is makes the ultimate upgrade for any ultra-light race bike. An ultralight OCLV Carbon seatpost with a 31.6 diameter and 2-bolt clamping head that offers easy-to-set, secure, slip-free saddle positioning. - 100% OCLV Carbon fiber shaft, head, and plates - Lightweight titanium hardware - 2-bolt micro-adjust head mechanism offers 15 degrees of adjustment - Unique clamp shape allows for easy saddle changes and adjustments - Compatible with standard and oversize carbon saddle rails - Suitable for road or mountain use

Ultra-light comfort and control The all-new RSL 27.2 Seatpost is an ultra-lightest carbon seat post, that now comes with an all-new design with a CnD shape profile for a more controlled and forgiving ride experience. An ultra-light carbon seatpost with unique shape profile for increased compliance. - CnD shape profile increases torsional stiffness and vertical compliance - Designed to offer increased compliance at maximum and minimum insertion points - 2-bolt design offers independent setback and tilt adjustments (+/- 12 degrees) - 100% OCLV Carbon fiber shaft and head - Includes 7x7mm round rail clamp compatibility - Carbon 7x10mm saddle ears sold separately

The Elite seatpost is a distilled design guaranteed to deliver reliable everyday performance for years to come. Perfect as a replacement or your next upgrade. With an alloy body and a 2-bolt micro adjust head, this seatpost is available in a slew of diameters, lengths, and offsets to get you the right position. Key features: - 2-bolt micro-adjust head mechanism offers 15 degrees of adjustment - Constructed of 2014 alloy - Forged 6061-T6 alloy head, top and bottom clamps - Unique clamp shape allows for easy saddle changes - Compatible with standard and oversize carbon saddle rails - Suitable for road or mountain use

The new SL-K SBS SB0 seatpost is lighter and stiffer than ever. Using a UD carbon shaft with a bonded alloy head and a sophisticated SBS clamp design, we can achieve what we believe is the finest SL-K seatpost yet. Available with a polymer Di2 battery holder. - UD carbon shaft with bonded alloy head - Forged alloy "SBS" 2-bolt head - Chromoly hardware - 20mm setback - Fits 7mm standard rails and 7x9mm oval rails - 221 grams

- LEV has always represented the latest technology but is already a classic among top contending dropper posts. - With myriad of firsts to its name; first hydraulic dropper to offer zero cable movement, first dropper to win a UCI World XC Eliminator event and first in countless enduros, magazine tests and customer satisfaction polls, LEV IS the first dropper seatpost to outperform itself.