Seatposts

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.

Crafted from 2014 aluminum, Specialized's Pro 2 Alloy MTB Seatpost is tough and light. The laid-back, single-bolt adjusting clamp holds fast and makes attaching and positioning the seat a cinch. And, the anodized finish looks great, too.

Zipp's Service Course Seatpost is stiff, light, has excellent gripping power, and the low-profile clamp allows you to slide the saddle extra far back on the rails. The shaft and head are 3D forged from a single piece of light, tough 7075 aluminum, and the clamp even features downward-facing bolts for micro-adjustments to achieve that perfect fit.

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

Seatposts can be an overlooked part of the bike, but at Whisky Parts Co., everything gets the same attention to detail so your ride never suffers. Their seatposts are made from the highest quality carbon, ensuring they are durable, lightweight, and comfortable. Whether you’re remounting during a cross race or abusing them on the trail, you'll be glad you have the No.7. - Carbon shaft absorbs trail chatter - UD carbon shaft, forged aluminum head

Strong, yet light as a whisper, Zipp's Service Course SL is everything you could want in a seatpost. It's forged out of a single piece of tough 7075 aluminum, yet weighs just 220 grams. A low-profile clamp allows you to slide the saddle extra far back on the rails, giving you more room to optimize your position. The clamp even features downward-facing bolts for micro-adjustments to achieve that perfect fit.

- Affordable hydraulic cartridge height adjustable post with two release options - Aluminum construction with adjustable air preload, 100mm range of height lock - 1-bolt micro-adjustable seat rail clamp, 20mm offset head - Remote model: includes handlebar-mounted remote - 100mm drop - 385mm post length

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 the introduction of Zipp's line of Service Course SL components, they've had amazing success with pro-level athletes in all disciplines. While the successes have been coming, they've also drawn from riders' feedback. Zipp not only learned how and why athletes make their equipment choices, but how manufacturing methods and materials affect product performance. With new knowledge as well as new engineering, they're proud to introduce a completely redesigned Service Course SL seatpost with a carbon tube and aluminum head for better shock absorption and weight savings. - Lightweight clamping system - Updated carbon tube material

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