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. A mast cap available in two sizes and offsets for all Trek road bikes with round seat masts. Product details - 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 - Aluminium clamp - Includes 7mm round saddle clamp ears, 10mm ears sold separately

Genuine replacement parts Ultra-light carbon construction. Aerodynamic design. Product details - Color matched for direct compatibility - 7mm round and 10mm oval saddle rail clamp ears sold separately

Genuine replacement parts Original replacement seatposts for your Domane MKIV. Product details - Aerodynamic design

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

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

• Durable aluminum construction • For specific compatibility concerns, please contact our Customer Service team

Smooth out your ride with a new suspension seatpost. Replacement suspension seatposts for a variety of frame styles. Product details - Durable aluminum construction - For specific compatibility concerns, please contact our Customer Service team

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

Since 1992, TranzX has been a leader in the industry – recognized for excellent design, practicality of application and superior quality. The TranzX adjustable seatpost equips air pressure actuation–freely and easily adapting your seat position according to the terrain you meet. The MICRO adjustment offers quick and easy seat positioning at any spot throughout the travel, with reliable and robust technology. Product details: - Remote actuated dropper post with Stealth internal routing and a clean look - Lever is not included - Bontrager Drop Line Universal Dropper Lever is recommended

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.

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

KS's LEV Integra is the only hydraulically locked and air-sprung post to feature zero cable movement and up to six inches of silky smooth travel. Couple that with our patented and unmatched one way roller bearing to ensure miles of play-free movement. Throw in a micro adjustable head, ergonomic carbon fiber remote that replaces an ODI Lock-On inner clamp and LEV is the ultimate dropper to let you keep rhythm on your ride. - Internally routed version of the LEV, specific to bike frames with internal dropper post design - Aluminum dropper with alloy trigger/clamp - 100, 125, or 150mm drop options with the same air/oil system as the original LEV - Locks anywhere in vertical range - Post will not extend when locked

- Alloy seatpost with alloy bracket - Length: 400mm - 20mm offset

The latest generation Thudbuster LT 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, 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: 90mm - Weight: 750g (31.6mm) - Max Rider Weight: 250lbs

The Brompton Seatpost bung is a rubber bung which fits into the underside of the seat post, acting as a cushion to prevent clunking against the ground when it is lowered down. The bung also helps to prevents Brompton bikes fitted with Eazy Wheels rolling, when not in use. - Weight: From 0.03 kg - Brand: Brompton - Compatibility: ACPT - Diameter: 32.8cm (Match flared end)

Ideal for smaller to average-height riders this seatpost will suit the majority of people with an inseam of 26" - 32". - Genuine Brompton Components - Steel main shaft with a length of 535mm - 31.6mm diameter

Brompton Telescopic Seatpost Snap-Fit in Silver is suitable for all riders with inside-leg measurements up to a maximum of 99cm (39 inches) and for taller riders who also wish to minimise the height of the folded bicycle. Specification Diameter Diameter (approx.) - 31.6mm (with flared end) Weight 701g Material Steel Details - Seatposts do not require any grease, copper slip or lubrication - Snap-fit - The telescopic seatpost gives up to 175mm more height yet, when lowered, the saddle projects only 20mm above your folded Brompton bike Compatibility Suitable on all Brompton folding bikes

Keep your seatpost right where you left it. Strong and confident Replacement seatpost clamps for a variety of frame and seatpost sizes. Product details - Follow laser-etched torque listing on collar

- 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

Genuine replacement parts Replacement cartridges for the Line Elite collection of dropper posts, available here for both 31.6mm and 34.9mm Line Elite models Product details - Replacement cartridge unit for Bontrager Line Elite Dropper seatposts. - Regular maintenance will help maintain performance and extend lifespan. - Refer to Service Manual for assembly instructions and service.

Strong and confident Replacement seatpost clamps for a variety of frame and seatpost sizes. Product details - See spec chart for available diameters and compatibility - Follow laser-etched torque listing on collar

• For aluminum seatposts. • 6061 T6 aluminum. • Screw-on seatpost clamp. • Diameters: 28.6, 31.8 and 34.9 mm.

Durable alloy construction - Quick and easy 1-bolt adjustment - 400mm length

Lighter weight option for Speed Concept. Genuine replacement parts Keep your bike looking fresh. - Only compatible with Speed Concept - Fixed head position

Integrates seamlessly into frame. Genuine replacement parts Keep your Speed Concept looking fresh. - Only compatible with Speed Concept - Flippable head

Get back on the road with a genuine replacement seatpost. GENUINE REPLACEMENT PARTS Original replacement seatposts for your Madone SLR. PRODUCT DETAILS - Ultra-light carbon construction - Aerodynamic design - Color matched for direct compatibility - 7mm round and 10mm oval saddle rail clamp ears sold separately - 2nd iteration to better fit the Madone Gen 7 SLR & SL frameset

GENUINE REPLACEMENT PARTS Get back on the road with genuine replacement parts. PRODUCT DETAILS - Keep your bike fresh - Includes routing port for rear light

GENUINE REPLACEMENT PARTS Get back on the road with genuine replacement parts. PRODUCT DETAILS - Keep your bike fresh - Includes routing port for rear light

Genuine replacement parts Original replacement seatpost. Product details - Saddle rail clamp sold separately - Durable steel construction