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Bike Seatposts & Bicycle Seat Post Components
Upgrade your riding position and overall comfort with premium bike seatposts from Carson City Bike Shop. Designed for road bikes, mountain bikes, gravel bikes, BMX bikes, commuter bicycles, and touring setups, this collection features dependable bicycle seatposts built for durability, adjustability, and smooth riding performance. We also offer seatpost shim options that help riders achieve the perfect fit between different frame and seatpost diameters.
Explore a wide selection of lightweight alloy seatposts, adjustable seat posts, suspension seatposts, micro-adjust models, seatpost shims, and replacement seatpost components from trusted cycling brands. Whether you need a bike seatpost shim to adapt a smaller seatpost to a larger frame tube or simply want to optimize your riding position, our collection provides dependable solutions for every cycling discipline.
Engineered for strength, stability, and precise saddle positioning, these seatposts and seatpost adapter shims help improve rider comfort, pedaling efficiency, and overall bike fit for both casual and performance-focused cyclists. Available in multiple sizes and materials, bicycle seatpost shims ensure a secure fit while maintaining proper alignment and long-term reliability.
Whether you're upgrading your bike for better comfort on long rides, improving riding posture, or replacing worn seatpost components, our bike seatposts and seatpost shim accessories are designed to provide reliable support and easy adjustment across a variety of riding styles and terrains.
From mountain trails and gravel adventures to road cycling and daily commuting, find the right bicycle seatpost, seatpost shim, and seatpost accessory to enhance comfort, control, and confidence on every ride.
495 products
495 products
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$22.50
• SEATPOST SERVICE KIT - 200 HOUR/1 YEAR SERVICE (INCLUDES FOAM RING, INNER SEALHEAD BUSHING & O-RINGS) - REVERB B1/REVERB STEALTH B1(2017-2019)
• SRAM Model ID: SP-SVC-T-A1
Receives in 6 days.
$7.20
• RockShox, 00.6815.066.010, Reverb oil height tool
• SRAM Model ID: TL-RVBT-OHT-A1
Receives in 6 days.
$40.50
• RockShox, 11.6815.015.010, Remote lever service kit
• SRAM Model ID: RM-SVC-A1
Receives in 6 days.
$6.30
• RockShox, 00.6815.066.020, Reverb post bleed tool
• SRAM Model ID: TL-RVBT-BLD-A1
Receives in 6 days.
$8.10
• RockShox, 11.6815.022.030, Hose Barb Reverb Remote, Qty 1
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$31.50
• RockShox, 11.6815.025.010, Hydraulic Hose, 2000mm
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$9.00
• SEATPOST BLEED SCREW - REVERB STEALTH & REVERB REMOTE (INCLUDES BLEED SCREWS & O-RINGS) (QTY 10) REVERB REMOTE A1-A2, REVERB STEALTH A1-C1 (2011-2020)
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$22.50
• Seatpost Post Clamp Kit - (Includes Upper/Lower Clamp Plates) - Reverb/Reverb Stealth B1
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$3.60
• SEATPOST INNER SEALHEAD SEAL - INTERNAL O-RING (QTY 10) - REVERB B1
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$81.00
• Fork Service Kit Basic (Includes Dust Seals, Foam Rings, O-Ring Seals) - Reba 15x100 Boost A5-A6 (2016-2017)
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$2.70
• Seatpost Post Clamp Kit - (Includes Clamp Nuts & Bolts Only)(Qty 6) - Reverb/Reverb Stealth A1-B1
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$85.50
• Seatpost Service Kit - 400 Hour/2 Year Service (Includes New, Upgraded IFP; Requires Post Bleed Tool, Oil Height Tool & IFP Height Tool) Reverb Stealth B1(2017)
• SRAM Model ID: SP-SVC-T-A2
Receives in 6 days.
$63.00
• SEATPOST LEVER KIT- ROCKSHOX LEFT, SINGLE (INCLUDES SPRING AND PIN) REVERB AXS
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
From $10.80
• SEATPOST HOSE BARB - (INCLUDES BARB ASSY AND POPPET HOUSING) - REVERB A1-B1, REVERB STEALTH A1-B1
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$3.60
• SEATPOST BRASS KEYS -REVERB/REVERB STEALTH A1- B1, REVERB AXS (2020+)
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$40.50
• Seatpost IFP - V3 (Internal Floating Piston Upgrade For A1 & A2 Post) (Qty 1) - Reverb/Reverb Stealth A2-B1
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$81.00
• REMOTE HOSE BARB - REVERB REMOTE (QTY 10) - REVERB
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$30.60
• Seatpost main piston/shaft - 355X100mm/380X125mm - Reverb A1 A2
Receives in 6 days.
$49.50
• SEATPOST INNER SEALHEAD U-CUP - (INCLUDES U-CUP & TOPOUT BUMPER) (QTY 10) - REVERB STEALTH A2 & B1
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$27.00
• RockShox, 11.6815.025.030, Reverb, Hydraulic hose
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$54.00
• Replacement IFP tube for Reverb/Reverb Stealth
• Includes upgraded IFP
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$5.40
• Seatpost Bottom Out O-Ring - (Qty 10) - Reverb/Reverb Stealth A2-B1
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$45.00
• SEATPOST POST CLAMP KIT - FITS 10MM OVAL SADDLE RAILS (INCLUDES CLAMP, NUTS & BOLTS) - REVERB AXS A1 (2020)/AXS XPLR A1 (2022)
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$139.50
• Seatpost Upper Piston Assembly - 30.9/31.6, 100mm - (Includes Upper Piston/Valve, Shaft) - Reverb AXS B1+ (2026+)
Receives in 6 days.
$31.50
• SEATPOST POST CLAMP KIT - (INCLUDES CLAMP, NUTS & BOLTS) - REVERB AXS A1
• SRAM Model ID: SP-SPP-T-A0
Receives in 6 days.
$108.00
• Seatpost Upper Tube Assembly - 30.9/31.6, 100mm - (Includes Upper Tube, Keys, Clamp Bolt Plate, And Fill Valve) - Reverb AXS B1+ (2026+)
Receives in 6 days.
$103.50
• Ergonomics learned from decades of SRAM shifter design experience
• SRAM Brakes Bleeding Edge technology
• User adjustable return speed – RockShox exclusive
• Lower lever force vs. cable actuation
• MMX and discrete clamp included
• SRAM Model ID: RM-UPK-1X-A1
Receives in 6 days.
$599.00
Reverb AXS completes the AXS ecosystem by giving the rider customizable controls, easy install, and a shared battery, charger, and controller. Built for GX, X0, and XX riders, Reverb AXS ensures smooth control and reliability for every rider running a 100mm up to a 250mm dropper post, all with improved battery clearance.
• Travel options include 100mm, 125mm, 150mm, 175mm, 200mm, 225mm, 250mm
• Air-over-air design that is more robust and durable
• ActiveRide provides a compliant platform for technical E-MTB climbs when not in fully extended rigid position
• Compatible with all saddle rail types (7x7, 7x9x and 7x10)
• SRAM Model ID: SP-RVB-AXS-B2
Receives in 6 days.
$625.50
The 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. Lightweight air-only internals featuring built-in ActiveRide™ compliance.
• Saddle clamp options compatible with 7x10 oval carbon rails.
• AXS handlebar controls (drop or flat bar) sold seperately.
• SRAM AXS battery and charger included.
• SRAM Model ID: SP-RVB-XPLR-A2
Receives in 6 days.
$625.50
• ActiveRide - Air only internals provide a fully rigid extended position with built-in compliance in the middle to ensure comfort and control over the roughest sections of gravel
• Drop force is tunable based on rider weight
• Saddle clamps compatible with 7x10, 7x9 Oval carbon and 7mm round rails
• AXS Technology allowing for customization to an individual rider’s liking via the AXS Mobile App
• AXS handlebar controls (drop or flat bar) sold separately
• Shared battery with all other SRAM AXS enabled components
• Battery and charger included.
• System is completely water and dust proof to IP69K
• SRAM Model ID: SP-RVB-XPLR-A1
Receives in 6 days.
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