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

• Forged aluminum • Integrated micro-adjust seat clamp

Seatposts can easily be mistaken for a simple alloy or carbon tube, but it’s an essential part of your equipment. The amount of flex in a seatpost determines the comfort of your ride. Pro Vibe seatposts have the right amount of stiffness to ensure maximum power transfer without losing comfort. Align all forces to work in favor of you—go for the PRO Vibe seatposts. - Strong UD carbon construction - Innovative 1 bolt clamping system - Compatible for Shimano Di2 battery integration - Weight: From 214g

3D forged one-piece AL7050-T6 construction - Wide saddle clamp design reduces rail stress and flex - Micro-adjust 2 bolt clamp design - 15mm setback - ISO-Mountain safety certified

Kalloy's 602 seatpost comes in a wide variety of diameters to fit most frames. Simple, sturdy, and lightweight, the 602 makes a great replacement seatpost.

A specific eTen hydraulic cartridge with single bolt offset saddle clamp allow the enjoyment of droppers at a low price, available with 100mm of travel. - Black hard anodized stanchion and an air spring, hydraulically locked cartridge - Single-bolt alloy head - Remote sold separately

The all-new carbon Contact SLR TCR seatpost compliments the redesigned TCR’s outstanding performance though optimal aerodynamics and ultra-light weight. - Optimized for maximum aero performance at a super low weight - Compatible with model year 2021 and on TCR frames - Not compatible with pre-model year 2021 TCR frames

Giant's Connect Seatpost is tough and durable thanks to its forged 6061 aluminum construction. The reversible outer clamp design allows for 12mm or 23mm offset options and the extra-long saddle clamp is compatible with lightweight carbon rails.

Features - Anti-Twist Technology keeps the saddle firmly positioned - Steel proprietary air & oil cartridge offers smooth consistent load range adjustment - Internal cable routing - Secure 2-bolt clamp design with steel hardware - Clamp design compatible with standard 7mm (alloy) or 9mm (composite) saddle rails - Extra-long lower saddle rail guide designed to cradle lightweight saddle rails securely - Includes updated 2x remote lever

- Giant proprietary D-Fuse seatpost - Composite construction with Alloy clamp - Zero offset configuration - 380mm length

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

The all-new Highline XC/Gravel delivers infinite adjustment, smooth feel, and easy installation. - 27.2mm seatpost diameter to fit most XC and gravel bikes - 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 standard head - Drop Bar Remote sold separately

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

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

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

Giant's Alloy Seatpost is dependable and respectably light at a great price. It boasts a single bolt micro-adjust clamp so you can dial in a great saddle position. - Weight: 325g

Let Giant's Comfort Suspension Seatpost take the sting out of cycling. This plush shock-absorbing post mutes road vibration and ensures rider comfort.

- Up to 200mm of vertical travel adjustability with limitless positioning - Tool-free adjustable travel design which let you adjust the travel by 5mm increment depending of rider's preference - Internal cable routing only - Clamp design compatible with standard 7mm (alloy) or 9mm (carbon) saddle rails - Includes 1x remote lever Travel option: - 95-120mm - 120-150mm - 140-170mm - 170-200mm

- Giant Variant carbon seatpost - Fits 2016+ TCR Advanced models (non-ISP)

Giant's Vector Seatpost offers superb aerodynamics, low weight, and the vibration damping high-end carbon is known for. The adjustable clamp head can be set up to provide either -5 or 25mm offset without any additional parts or tools.

Genuine replacement parts. Replacement seatposts for a variety of frame styles. - Durable aluminum construction - For specific compatibility concerns, please contact our Customer Service team - Rail compatibility: Universal

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

A streamlined design with fewer moving parts and better seals makes for a dropper post that performs consistently and requires less maintenance. The updated Bontrager Line Dropper Post is easy to set up and now even easier to service. The cable-actuated hydraulic locking design provides proven functionality for bikes with internal routing. - Remote cable actuation with ergonomically designed under-bar lever - Air-sprung hydraulic locking cartridge offers infinite adjustability within dropping range - Keyed chassis prevents rotation for a stable ride - 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 Drop Line Universal Lever sold separately - Frame must be compatible with internally routed seatpost routing

A performance dropper post with MaxFlow technology for faster, smoother operation. The Line Elite 31.6 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 170mm travel ensure there is a size for your ride. Designed for bikes with internal frame routing. - 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 - Travel inserts available in 10mm and 30mm sizes to fine tune travel and rider fit - Cable-actuated under-bar lever compatible with SRAM MatchMaker and Shimano I-Spec II - 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

Pro performance post A seatpost should do one thing well — hold your seat. Our new carbon fiber Pro seatpost does that and more with a reliable 2-bolt design that lets you swap saddles with ease. Great for road or mountain use and available in a slew of diameters, lengths and offsets, this post gives you the setup versatility you've always wanted. - 2-bolt micro-adjust head mechanism offers 15 degrees of adjustment - OCLV carbon fiber shaft - Forged 6061-T6 alloy head with OCLV carbon fiber 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

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

Bontrager's Race XXX Lite Seatpost is made of OCLV carbon for a sweet ride and minimal weight. Carbon's unique vibration damping properties smooth the road and the trail so you can go longer and harder. And, this post boasts an easy-to-use, one-bolt, infinitely-adjustable clamp.

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.

Bontrager's Speed Concept Seatpost lets you get your aero fit dialed. Different offsets allow you to customize your riding position for superior ergonomics and aerodynamics, and the clamp is compatible with both standard and oversize saddle rails. This seatpost is compatible with 2014 Trek Speed Concept 9 Series bikes.

Dropper posts are awesome until they're not. That's why Bontrager created the Drop Line to be the one you can rely on. From installation to activation, no other dropper post can withstand the rigors of real-world riding and just keep functioning. And since cable installation is so easy, swapping from bike-to-bike is as easy as with a non-dropper seatpost. The Drop Line dropper seatpost comes in 100mm, 125mm, and 150mm lengths. - Remote cable actuation with ergonomically designed under-bar lever - Air-sprung hydraulic locking cartridge offers infinite adjustability within dropping range - Keyed chassis prevents rotation for a stable ride - 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 Drop Line Universal Lever sold separately - Frame must be compatible with internally routed seatpost routing