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

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.

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.

• Aluminum • Coil spring provides plush suspension • Adjustable pre-load design • Micro-adjust seat clamp • 450 grams

- Forged aluminum - 7/8-inch seat-clamp diameter - 165 grams

• Forged aluminum • Integrated micro-adjust seat clamp

Origin-8's Pro Fit Alloy Seat Post is made of light and durable forged aluminum that's been anodized and laser etched for a custom look. It also features an adjustable 2-bolt clamp that holds fast and lets you easily dial in your seat position. And, this fine post comes in a variety of diameters to fit almost any bike.

A refined dropper that combines great lever feel with smooth, consistent operation for an awesome riding experience. Smooth operator Smooth operation, long-term durability, and a refined design come together for a best-in-class riding experience. The Line Elite Dropper's proven design is easy to set up and now even easier to drop, with 20% less saddle force required. Avid Matchmaker and Shimano I-Spec II compatibility ensure simple, integrated setup and length options from 100mm to 170mm travel ensure there is a size for your ride. Product details - Cable actuated under-bar lever compatible with MatchMaker and Shimano I-Spec B-Type - Infinitely adjustable air-sprung hydraulic locking cartridge with 20 percent reduction in compression force - Pierced head design allows riders to run longer travel post with shorter overall lengths - 2-bolt rocker head with micro adjustment allows for easy saddle tilt adjustment - Internal cable routing keeps housing tucked away and free from a moving wheel - Includes cable, housing, and 1x under-bar remote lever - On-Bar Universal Lever sold separately - The frame must be compatible with internally routed seatpost routing