Seatposts

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

- Internal Routed, Infinitely Adjustable Design - Simplistic - Fully Sealed Alloy Cage / Stainless Tip Cartridge System - Durable 3D Forged Head - With 7075-T6 Forged Clamp - Featherlight Thumb Actuation - Industry Leading - Intelligent Keyway System - Ensures Minimal Play - Easiest Installation - Cable Head Attaches At Base - Cold Weather Approved - Tested Down To -20C. - 1x Lever included - With Premium Jagwire Lex Slick Housing, Stainless Cable and Hardware - Remote Position: On handlebar - Cable Routing: Internal - Offset: 0mm - Clamp Type: Standard, double bolt - Seat Post Material: Aluminum - Seat Post Weight: 510g

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.

The Pro PLT seatpost is constructed of strong and lightweight 3D forged AL-7050 and features an innovative 1-bolt clamping system that provides ultra-secure clamping and ease of use.

The Coast dropper is the world's first Suspension Dropper Post, combining ride-smoothing suspension and the benefits of a dropper into one seatpost. This dropper is designed to help riders on all types of bikes, from packed-up trekkers, to the cross-country wanderers, even the weekday commuters. We developed the Coast because the earth isn't flat (no matter what those people on Twitter say)—it's kind of bumpy. And, while we all like coasting along on freshly paved roads, mountain paths are enticing, and potholes exist no matter how much we swear at them. The Coast Post was designed to soak up some of these vibrations. We accomplished this via 40mm of tunable air suspension housed in the internals to make your ride a bit smoother. While this post provides some relief from everyday chatter, it also comes with up to 120mm of drop. Most people associate dropper posts with mountain biking, but it turns out they're pretty jazzy on everything, from gravel bikes to trekking rigs and commuters. Let's face it, when your saddle is at the proper height for riding, dismounts can be…inelegant. A dropper post allows you to push a button and be in a flat-footed position when you want, easily returning you to the best saddle height for riding once you get going again. This can be great for starting and stopping in city traffic or getting on and off a bike packed up with stuff—or really, if your hips are just extra tight and creaky like ours. Plus when you're going downhill, a dropper easily gets the distraction of your seat out of the way, letting you lower your center of gravity. Not only does this put you in a safer riding position, it also makes descents more fun (we wish this safer-but-also-more-fun combo was true for more things in life). - Air Suspension: 40mm - Weights: 31.6/30.9 External routing - 615g, 31.6/30.9 Internal routing - 610g, 27.2 External routing - 540g, 27.2 Internal routing - 535g - Cable Routing: Internal - Cartridge: 2-chamber hydraulic and adjustable air - Lever sold separately - 3-year warranty - Perfect for commuters, gravel bikes, or hardtail bikes - NOTE: This is NOT a replacement for rear suspension, it is a suspension seat post that helps absorb the larger bumps while seated. It does not provide small bump compliance found in rear suspension mountain bikes.

Why should burly bikes have all the fun? We asked that question when we released our first 27.2 dropper post. The Pine continues the tradition of bringing great, reliable dropper posts to bikes with skinnier tubes, whether it be your classic hardtail, XC bike, gravel grinder or cyclocross rig. All-new versions of the Pine now come with the option of 90 and 110mm of travel. This accommodates more bikes and helps you win the battle against getting bucked forward by your seat on steep and techy terrain. And while extra travel is always a great perk, we think the best addition to the new models is a slick 1-piece alloy stanchion, which drops a whopping 100g of weight from the older models. To keep descending even more distraction free, the Pine features external routing at the midcap rather than the post head, allowing you to keep your cable routing nice and tidy. - Travel: 90mm or 110mm - Post Diameter: 27.2mm - Weights: 90mm - 490g, 110mm - 530g - Infinite Adjust: So you can pick from multiple positions - 1-piece alloy stanchion (no more press-on head) - External cable routing with fixed cable entry at the mid cap - Lever sold separately - 3-year warranty!

The OneUp Dropper post is available in 120mm, 150mm, 180mm and 210mm lengths and all can be shimmed down in travel by 10 or 20mm. We've been obsessed with shaving every last millimeter from the latest OneUp post to give you the the shortest stack height and shortest total length of any dropper post. No other post can get your saddle lower. Starting from $199 USD with free shipping worldwide, cable actuated with reliable sealed cartridge internals for easy home servicing and includes travel adjust shims allow you to custom tune your post to dial in your perfect length. The dropper market is dominated by expensive big brand posts and generic catalog shopped posts with different logos. We want to offer something better, a post with class leading specs, innovative useful features AND real value. Want more from your dropper? Get OneUp. FEATURES - Travel adjust shims allow you to custom tune your post to dial in your perfect length. - Cable actuated for easy installation and a simple no bleed remote - Ergonomic remote paddle position - Reliable sealed cartridge internals - User replaceable cartridge only $60 USD - Easy to service at home - 2 year warranty UPDATES - Shortest total length of any dropper - Shortest stack height of any dropper - New upper DU Bushing in the upper collar - Increased bushing overlap and durability - 100-210mm post lengths in 10mm increments. - 20g lighter SPECS - Drop 120mm, 150mm, 180mm, 210mm adjustable*. - Diameter 30.9, 31.6, 34.9 - Routing Internal only Remote Compatibility: - SRAM Matchmaker X - SRAM MMX clamps - Shimano I-spec-EV - 12 speed XTR M9100, XT M8100 and SLX M7100 - Shimano I-spec II - 11 speed XTR M9000, XT M8000, SLX M8000 only - 22.2mm Bar Clamp - All other groups 10 speed SHIMANO - Cable clamping remote only (post requires cable stop to be assembled at base of post) - Travel Reducing Shim Reduces travel by up to 20mm. Weight Post Only - (30.9) 120mm 435g / 150mm 480g / 180mm 525g / 210mm 570g - (31.6) 120mm 450g / 150mm 500g / 180mm 545g / 210mm 590g - (34.9) 120mm 545g / 150mm 605g / 180mm 660g / 210mm 710g Remote Only - Remote with 22.2mm Bar Clamp - 46g - Remote with SRAM Matchmaker X / I-spec-EV - 43g - Remote with Shimano I-spec-EV - 43g - Remote with Shimano I-spec II - 41g - Housing and Cable (1300mm installed length) - 50g

The proven Transfer seatpost gets lighter and tighter. Completely redesigned from the ground up, with improved serviceability, decreased weight, reduced length, and decreased insertion depth. "Factory" says it all. The best-of-the-best technology we have to offer is available in our Factory Series models with our buttery smooth, ultra-durable Genuine Kashima Coat. These products are World Cup proven. The Transfer continues the excellent reputation of smooth function and great reliability with an infinitely adjustable height design, and internal or external cable routing options. Low lever force and great modulation make it easy to regulate return speed and small height adjustments. The Factory Series Transfer features Genuine Kashima Coating for maximum performance. - 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 - Easy to modulate return speed with lever - Factory Series models feature Genuine Kashima Coat - Remote lever sold separately

The proven Transfer seatpost gets lighter and tighter. Completely redesigned from the ground up, with improved serviceability, decreased weight, reduced length, and decreased insertion depth. Performance Elite Transfer Posts retain the same internals, diameter options, drop options, shortened stack heights, new patent-pending head design and proven internals as the Factory Series but have a black anodized upper. - 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 - Easy to modulate return speed with lever - Remote lever sold separately - 0mm offset

- Sturdy Cr-Mo double bolt adjustment seat clamp allows for a precise and secure hold on the saddle in any position

The Highline 3 delivers infinite adjustment, smooth feel, and easy installation. Details - Premium Trelleborg sealing - Exclusive Igus LL-glide bearings and keys - Jagwire cable and housing - Self-contained hydraulic cartridge delivers industry-leading quality and reliability - Internal routing - Quick connect mechanism for ease of cable installation - Linear actuator for quick return speed - 2-bolt standard head - Remote sold separately

Introducing the Highline: years of research, development, and rigorous testing has given rise to the world's finest dropper post and remote. Premium sealing, exclusive Igus bearing and keys, Jagwire cable, and a self-contained hydraulic cartridge deliver industry leading quality and reliability. The Highline features the world's most ergonomic remote: unique spherical adjustment, with near-infinite rotation and tilt customization options, for perfect cockpit ergonomics. Specs: Setback: Zero Length: 345mm (100mm travel)/ 395mm (125mm travel)/ 465mm (160mm travel) Material: 7075-T6 aluminum Minimum Stack height: 47mm Weight: 525g (100mm travel)/ 560g (125mm travel)/ 610g (160mm travel) Warranty: 3 years

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

Performance suspension seatposts designed to add comfort and compliance to any bike without adding unnecessary weight. With 35mm of travel, the eeSilk+ is a suspension seatpost designed to noticeably soften any gravel or mixed-surface road. These posts make great enhancements to gravel or mixed surface bikes by reducing the chatter transmitted from the surface to the rider and can be tuned to rider weight through a simple elastomer change. #5 elastomer comes pre-installed, other weight elastomers sold separately - Travel: 35mm - Length: 362mm - Weight: 323g (27.2mm), 333g (31.6mm) - Max Rider Weight: 250lbs - Offset: 12mm - Minimum Extension: 80mm - Maximum Extension: 287mm

- Straight-gauge 6061-T6 alloy shaft construction - 2-bolt rocker-head with micro-adjustment - Suitable for road or mountain use

A performance dropper post with an larger 34.9mm diameter and updated design with MaxFlow technology for faster, smoother operation. The Line Elite 34.9 Dropper is easy to set up and easier to drop, with 20% less saddle force required. Avid Matchmaker and Shimano I-Spec II compatibility ensures simple, integrated setup and the included lever provides a great feel with an easy push. Length options from 100mm to 200mm travel ensure there is a size for your ride. Designed for bikes with 34.9mm seatpost compatibility. - Infinitely adjustable air-sprung hydraulic locking cartridge with 20 percent reduction in compression force - MaxFlow design allows for a faster return and less compression force - 34.9mm diameter adds strength and durability while reducing side-play and stiction - Cable-actuated under-bar lever compatible with MatchMaker and Shimano EV - 2-bolt rocker head with micro adjustment allows for easy saddle tilt adjustment - Internal cable routing keeps housing tucked away and free from moving wheel - Includes cable, housing, and 1x under-bar remote lever - On-Bar Universal Lever sold separately

Bontrager's Speed Concept Seatpost lets you get your fit dialed before your next triathlon or time trial. It's crafted from OCLV carbon and the one-bolt head provides simple adjustments. Different offsets allow you to customize your riding position for superior ergonomics and aerodynamics.

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

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

WeThePeople's Socket Pivotal seat post is made from 6061 aluminum for a perfect blend of strength and weight savings. It works with all Pivotal seats and comes in the perfect color and size to match your bike. Plus, there's a 17mm socket head built into the bottom of the post for park-side adjustments to your wheels.

WeThePeople's Team Pivotal seatpost is made from 6061 aluminum for a perfect blend of strength and weight savings. It works with all Pivotal seats and it's 200mm long for plenty of adjustability.

Thomson's Elite Seatpost is perhaps one of the most recognizable bicycle components in the world and it has earned its reputation as a super-strong, light and reliable beauty. With roots in the aerospace industry, Thomson builds the post with a tough and light 7000-series aluminum body, an elliptical extrusion that adds strength and stiffness, and a head and seat clamp forged and machined from a block of aluminum to eliminate any possible weak areas. Plus, its simple-to-use 2-bolt seat clamp allows speedy, infinite and secure seat angle adjustment from minus 5 degrees to plus 29 degrees. Upgrade your favorite ride to a Thomson seatpost and start riding in style.

Thomson's Elite Setback Seatpost is perhaps one of the most recognizable bicycle components in the world and it has earned its reputation as a super-strong, light and reliable beauty. With roots in the aerospace industry, Thomson builds the post with a tough and light 7000-series aluminum body, an elliptical extrusion that adds strength and stiffness, and a head and seat clamp forged and machined from a block of aluminum to eliminate any possible weak areas. Plus, its simple-to-use 2-bolt seat clamp allows speedy, infinite and secure seat angle adjustment from minus 5 degrees to plus 29 degrees. Upgrade your favorite ride to a Thomson seatpost and start riding in style.

The name says it all: Thomson's Masterpiece Seatpost combines the best materials, exceptional strength, perfect function, light weight and the classic beauty of all Thomson products. All Masterpiece posts are extruded and then painstakingly machined from a single block of ultra-strong 7000-series aluminum, and they all weigh less than 200 grams complete. This means you get a post tough enough for any ride on or off road and at a nice and light weight that will complement your dream bike. What's more, you get Thomson's easy-to-adjust and super reliable 2-bolt seat clamp that makes it a breeze to dial in your perfect seat position from minus 5 degrees to plus 29 degrees.

The name says it all: Thomson's Masterpiece Seatpost combines the best materials, exceptional strength, perfect function, light weight and the classic beauty of all Thomson products. All Masterpiece posts are extruded and then painstakingly machined from a single block of ultra-strong 7000-series aluminum, and they all weigh less than 200 grams complete. This means you get a post tough enough for any ride on or off road and at a nice and light weight that will complement your dream bike. What's more, you get Thomson's easy-to-adjust and super reliable 2-bolt seat clamp that makes it a breeze to dial in your perfect seat position from minus 5 degrees to plus 29 degrees.

This 27.2 titanium ti seatpost is an evolution of the groundbreaking Elite seat post designed by founder (LH) Ronnie Thomson. The collection you've come to love and trust, now in Titanium. Ti hardware, precise adjust-ability, and proven performance. Pair with our Elite series stems, a seat post collar, and Ti handlebar for the entire cockpit collection. Features include Ti hardware and our trusty alloy clamp, everything you'd want in a modern Titanium post. A seat post that'll last a lifetime, quality you trust, titanium for the prized bike in your collection. - Infinite tilt adjustment from minus 5° and plus 29° - Super low profile clamps means no interference with the saddle as the swivel nuts are down between the seat rails. - Thomson designs and materials go through extensive life and ultimate strength tests. Our ongoing testing program ensures that every production lot of seat posts meets our seriously aerospace bike geek Thomson standards. - Impact absorbing clamps in the seat post spread and flex on impact to protect the saddle, rails, and rider. The result allows the seat to survive heavy impact loads without bending the rails.

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

- Longer Drop – The Tellis is now available in 200mm drop so riders can benefit from the ability to further drop their saddle. This allows for more free movement on the bike when the trails get steep, fast or technical - The same proven & trusted design, now in a longer 200mm drop length - Internal Routed, Infinitely Adjustable Design - Simplistic—Fully Sealed Alloy Cage / Stainless Tip Cartridge System - Durable 3D Forged Head—With 7075-T6 Forged Clamp - Intelligent Keyway System—Ensures Minimal Play - Easiest Installation—Cable Head Attaches At Base - Cold Weather Approved—Tested Down To -20C - Featherlight Lever Thumb Actuation—Industry Leading - 282mm insertion length - 1x Lever included—With Premium Jagwire Lex Slick Housing, Stainless Cable and Hardware

Our intention with Reverb AXS was inventive and pure: No hoses. No routing. No energy wasted. Not a single thing in the way of the experience. We created a reliable wireless-electronic dropper post and controller that actuates with drastically less effort and zero distraction. Expanding what's possible on a bike, Reverb AXS is enabled by SRAM AXS technology, a new level of interaction, personalization, and connectivity across all AXS-enabled components. - Effortless Electronic-Wireless actuation and infinite height adjustment with a single touch. - Clean, simple and fast to install. No hoses to route, no fishing required. - Updated internals for faster return speed in all conditions. - New Vent Valve Technology, a simple and reliable built in service solution without disassembly of the seatpost. - SRAM AXS technology, a new level of interaction, personalization, and connectivity across all AXS-enabled components. - Includes RockShox AXS handlebar controller, rechargeable SRAM battery, and charger.

New Guts, New Glory Don't let its familiar good looks fool you—Reverb is a whole new weapon. Its internals have been completely re-engineered to improve on its already legendary performance and to offer enhanced reliability: all the smallest details, down to the single seal, have been re-evaluated and updated to pass the hardest and longest durability tests. Additional bushing overlap also improves performance over time, while new 150- and 170-millimeter travel options are available to tame even the gnarliest of descents. This is the brand-new Reverb, engineered for the next-generation mountain biker. - Internal cable routing keeps your bike sleek and uncluttered - Completely redesigned internals with new SKF internal floating piston - Improved performance and durability in all conditions - 150mm and 170mm travel options available in all diameters - Increased bushing overlap - New dedicated post length per travel length - WEIGHT: 560g (weight based on 340mm post, 30.9mm diameter, 100mm travel, MMX remote with shifter hardware and 1300mm hose) - LENGTH: 340mm, 390mm, 440mm, 480mm - COLORS: Black - MATERIAL: Shaft: 3D forged 7050 alloy , Head: 7050 forged alloy - OTHER: Zero Offset , Remote: Adjustable return speed at the handlebar, Discrete or Match Maker X, Left or right