Specialized Geo-Adjust Flip Chip Bushing Kit 8x15x6.5mm OEM

Specialized Geo-Adjust Flip-Chip Bushing Kit

Factory OEM | Rear Shock Geometry Adjustment Bushings | S189900096

The Specialized Factory Replacement Geo-Adjust Flip-Chip Bushing Kit is a genuine OEM replacement pair used in the rear shock eyelet geometry-adjustment system on a wide range of Specialized mountain and Turbo mountain bikes.

The kit includes two steel bushings measuring 8mm ID × 15mm OD × 6.5mm thick. On compatible frames, repositioning the Geo-Adjust flip-chip changes the suspension geometry, allowing the bike's bottom bracket height and head tube angle to be adjusted for different terrain and handling preferences.

Available from Stage 21 Bikes, your trusted source for hard-to-find Specialized OEM replacement parts.

Key Features

• Genuine Specialized factory OEM replacement parts
• Used in compatible Specialized Geo-Adjust flip-chip systems
• Rear shock eyelet application
• Includes two steel bushings
• 8mm inside diameter
• 15mm outside diameter
• 6.5mm thickness
• Allows geometry adjustment when installed in the applicable flip-chip orientation
• Used across numerous Specialized Stumpjumper, Enduro, Levo, Levo SL, Kenevo, Status, Chisel, and Epic platforms
• Specialized MPN S189900096

Kit Includes

• 2 × Steel Geo-Adjust Bushings
  • 8mm ID
  • 15mm OD
  • 6.5mm thick

Specifications

Geo-Adjust Function

On compatible Specialized frames, the rear shock mounting system uses a reversible Geo-Adjust interface.

Changing the flip-chip orientation can alter:

• Bottom bracket height
• Head tube angle
• Overall handling characteristics

The exact geometry change depends on the specific frame and model, so refer to the applicable Specialized owner's manual or service documentation for the geometry values and correct orientation.

OEM Compatibility

The detailed Specialized OEM fitment data extends significantly beyond the shorter 2019–2025 summary and includes applications from 2018 through 2027. The model-specific OEM list is therefore the better fitment reference.

2027

• Turbo Levo R Pro
• Turbo Levo 4 Pro
• Turbo Levo 4 Expert
• Turbo Levo 4 Comp Alloy
• Turbo Levo 4 Comp
• Turbo Levo 4 Alloy
• S-Works Turbo Levo R
• S-Works Turbo Levo 4 X
• S-Works Turbo Levo 4 Frameset
• S-Works Turbo Levo 4
• S-Works Epic 9 Ultralight LTD
• S-Works Epic 9 LTD – Built for Legends
• S-Works Epic 9 Frameset
• S-Works Epic 9
• Epic 9 Sport
• Epic 9 Pro
• Epic 9 Expert
• Epic 9 Comp
• Chisel Comp
• Chisel

2026

• Turbo Levo SL 2 Pro
• Turbo Levo SL 2 Expert Di2
• Turbo Levo SL 2 Expert
• Turbo Levo SL 2 Comp Alloy
• Turbo Levo SL 2 Comp
• Turbo Levo 4 Pro
• Turbo Levo 4 Expert
• Turbo Levo 4 Comp Alloy
• Turbo Levo 4 Comp
• Turbo Levo 4 Alloy
• S-Works Turbo Levo SL 2 Di2
• S-Works Turbo Levo SL 2
• S-Works Turbo Levo 4 LTD
• S-Works Turbo Levo 4 Frameset
• S-Works Turbo Levo 4
• Chisel Frameset
• Chisel Comp
• Chisel

2025

• Turbo Levo SL 2 Öhlins Coil
• Turbo Levo SL 2 Pro
• Turbo Levo SL 2 Expert
• Turbo Levo SL 2 Comp Alloy
• Turbo Levo SL 2 Comp
• Turbo Levo 4 Pro
• S-Works Turbo Levo SL 2 LTD – FOX DHX Live Valve Neo
• S-Works Turbo Levo SL 2 Frameset
• S-Works Turbo Levo SL 2
• S-Works Turbo Levo 4
• S-Works Enduro Frameset
• Enduro Pro
• Enduro Comp
• Chisel Shimano
• Chisel Frameset
• Chisel Comp Shimano
• Chisel Comp EVO
• Chisel Comp
• Chisel

2024

• Turbo Levo SL 2 Pro Carbon
• Turbo Levo SL 2 Expert Carbon
• Turbo Levo SL 2 Comp Carbon
• Turbo Levo SL 2 Comp Alloy
• Stumpjumper Expert
• Stumpjumper Comp
• S-Works Turbo Levo SL 2 Frameset
• S-Works Turbo Levo SL 2 Carbon
• S-Works Stumpjumper Frameset
• S-Works Stumpjumper
• S-Works Enduro Frameset
• Enduro Expert
• Enduro Comp

2023

• Turbo Levo SL 2 Pro Carbon
• Turbo Levo SL 2 Expert Carbon
• Turbo Levo SL 2 Comp Carbon
• Turbo Kenevo Expert
• Turbo Kenevo Comp
• Stumpjumper Pro T-Type
• Stumpjumper LTD T-Type – SRAM GX AXS / RockShox Ultimate
• Stumpjumper Frameset
• Stumpjumper Expert T-Type
• Stumpjumper Comp – SRAM GX Eagle / FOX Rhythm
• S-Works Turbo Levo SL 2 LTD
• S-Works Turbo Levo SL 2 Carbon Frameset
• S-Works Turbo Levo SL 2 Carbon
• S-Works Stumpjumper T-Type – SRAM XX Eagle / FOX Factory
• S-Works Stumpjumper Frameset
• S-Works Enduro Frameset
• Enduro Expert
• Enduro Comp

2022

• Turbo Kenevo Expert
• Turbo Kenevo Comp
• Stumpjumper Pro – SRAM X01 AXS / FOX Factory
• Stumpjumper Frameset – FOX FLOAT DPS Performance
• Stumpjumper Expert – SRAM GX Eagle / FOX Performance Elite
• Stumpjumper Comp
• Status 160 Frameset
• Status 160 Base
• Status 140 Frameset
• Status 140
• S-Works Turbo Levo SL LTD
• S-Works Turbo Levo SL Frame
• S-Works Stumpjumper LTD – SRAM X01 AXS / FOX Factory
• S-Works Stumpjumper Frameset – FOX FLOAT DPS Factory
• S-Works Stumpjumper
• S-Works Enduro LTD
• S-Works Enduro Frameset
• S-Works Enduro
• Kenevo Expert
• Kenevo Comp
• Enduro LTD
• Enduro Frameset
• Enduro Expert
• Enduro Comp

2021

• Turbo Levo Troy Lee Designs LTD Carbon Frameset
• Turbo Levo SL Expert Carbon
• Turbo Levo SL Comp Carbon
• Turbo Levo SL Comp
• Turbo Levo Expert Carbon
• Turbo Levo Comp Carbon
• Turbo Levo Comp
• Turbo Levo
• Stumpjumper Pro
• Stumpjumper Expert
• Stumpjumper Comp
• Status 160 Frameset
• Status 160
• Status 140 Frameset
• Status 140
• S-Works Turbo Levo SL Frameset
• S-Works Turbo Levo SL
• S-Works Turbo Levo Frameset
• S-Works Turbo Levo
• S-Works Stumpjumper Frame
• S-Works Stumpjumper
• S-Works Enduro
• Kenevo Expert
• Kenevo Comp
• Enduro Frameset
• Enduro Expert
• Enduro Comp
• Enduro S-Works Frameset

2020

• Turbo Levo SL Expert Carbon
• Turbo Levo SL Comp Carbon
• Turbo Levo SL Comp
• Turbo Levo Expert Carbon
• Turbo Levo Comp Carbon
• Turbo Levo Comp
• Turbo Levo
• Turbo Kenevo Expert
• Turbo Kenevo Comp
• Stumpjumper Troy Lee Designs EVO 29 Frameset – Limited Edition
• Stumpjumper Troy Lee Designs EVO 27.5 Frameset – Limited Edition
• Stumpjumper ST LTD Downieville Carbon 29
• Stumpjumper ST Alloy 29
• Stumpjumper ST Alloy 27.5
• Stumpjumper Pemberton LTD Edition 29
• Stumpjumper Pemberton LTD Edition 27.5
• Stumpjumper Expert Carbon 29
• Stumpjumper Expert Carbon 27.5
• Stumpjumper EVO Comp Carbon 29
• Stumpjumper EVO Comp Carbon 27.5
• Stumpjumper EVO Comp Alloy 29
• Stumpjumper EVO Comp Alloy 27.5
• Stumpjumper EVO Carbon 29 Frameset
• Stumpjumper EVO Carbon 27.5 Frameset
• Stumpjumper EVO Alloy 29 Frameset
• Stumpjumper EVO Alloy 27.5 Frameset
• Stumpjumper 29
• S-Works Turbo Levo Frameset
• S-Works Turbo Levo SL Founder's Edition
• S-Works Turbo Levo SL
• S-Works Turbo Levo
• S-Works Stumpjumper SRAM AXS 29
• S-Works Stumpjumper 29 Frameset
• S-Works Stumpjumper 29
• S-Works Stumpjumper 27.5 Frameset
• S-Works Stumpjumper 27.5
• S-Works Enduro Frameset
• S-Works Enduro
• Men's Stumpjumper EVO Pro 29
• Men's Stumpjumper EVO Pro 27.5
• Enduro Expert
• Enduro Elite

2019

• Women's Turbo Levo Comp
• Women's Turbo Levo
• Women's Stumpjumper ST Comp Carbon 29
• Women's Stumpjumper ST Comp Alloy 29
• Women's Stumpjumper ST Alloy 29
• Women's Stumpjumper ST Alloy 27.5
• Women's Stumpjumper Comp Carbon 27.5 – Mixtape LTD
• Women's Stumpjumper Comp Carbon 27.5
• Women's Stumpjumper Comp Alloy 27.5
• Turbo Levo Expert
• Turbo Levo Comp Carbon
• Turbo Levo Comp
• Turbo Levo
• Stumpjumper Custom 29
• Stumpjumper Custom 27.5
• S-Works Stumpjumper Carbon 29 – Warranty Frame
• S-Works Stumpjumper Carbon 27.5 – Warranty Frame
• S-Works Turbo Levo
• S-Works Stumpjumper ST 29
• S-Works Stumpjumper ST 27.5
• S-Works Stumpjumper 29 Frameset
• S-Works Stumpjumper 29
• S-Works Stumpjumper 27.5 Frameset
• S-Works Stumpjumper 27.5
• Men's Stumpjumper ST Expert 29
• Men's Stumpjumper ST Expert 27.5
• Men's Stumpjumper ST Comp Carbon 29
• Men's Stumpjumper ST Comp Alloy 29
• Men's Stumpjumper ST 29
• Men's Stumpjumper ST 27.5
• Men's Stumpjumper Pro 29
• Men's Stumpjumper Expert 29
• Men's Stumpjumper Expert 27.5
• Men's Stumpjumper EVO Pro 29
• Men's Stumpjumper EVO Pro 27.5
• Men's Stumpjumper EVO Comp Alloy 29
• Men's Stumpjumper EVO Comp Alloy 27.5
• Men's Stumpjumper Comp Carbon 29
• Men's Stumpjumper Comp Carbon 27.5
• Men's Stumpjumper Comp Alloy 29
• Men's Stumpjumper Comp Alloy 27.5
• Levo S-Works Carbon 29 – Warranty Frame
• Levo Expert Carbon 29 – Warranty Frame

2018

• Women's Stumpjumper ST Comp Carbon 29
• Women's Stumpjumper ST Comp Alloy 29
• Women's Stumpjumper ST Alloy 29
• Women's Stumpjumper ST Alloy 27.5
• Women's Stumpjumper Comp Carbon 27.5
• Women's Stumpjumper Comp Alloy 27.5
• Men's Stumpjumper ST Expert 29
• Men's Stumpjumper ST Expert 27.5
• Men's Stumpjumper ST Comp Carbon 29
• Men's Stumpjumper ST Comp Carbon 27.5
• Men's Stumpjumper ST Alloy 29
• Men's Stumpjumper ST Alloy 27.5
• Men's Stumpjumper Expert 29
• Men's Stumpjumper Expert 27.5
• Men's Stumpjumper Comp Carbon 29
• Men's Stumpjumper Comp Carbon 27.5
• Men's Stumpjumper Comp Alloy 29
• Men's Stumpjumper Comp Alloy 27.5
• Men's S-Works Stumpjumper ST 29
• Men's S-Works Stumpjumper ST 27.5
• Men's S-Works Stumpjumper 29 Frame
• Men's S-Works Stumpjumper 29
• Men's S-Works Stumpjumper 27.5 Frame
• Men's S-Works Stumpjumper 27.5

Compatibility Notes

• This listing is for the two steel Geo-Adjust bushings supplied under MPN S189900096.
• The detailed OEM fitment information spans 2018–2027, broader than the initial model-family summary.
• Specialized uses different geometry-adjustment hardware across frame generations. Do not assume compatibility based only on a bike having a flip-chip.
• Confirm the original bushing dimensions:
  • 8mm ID
  • 15mm OD
  • 6.5mm thick
• Sold as a pair.
• Shock bolts, pivot hardware, bearings, and other suspension components are not listed as included.
• Follow the applicable Specialized frame manual for correct flip-chip orientation, shock hardware installation, and torque specifications.

Factory-Correct Geometry Adjustment Hardware

The Geo-Adjust system gives compatible Specialized frames a simple way to alter handling characteristics without replacing major suspension components. Correct bushings are important for maintaining the intended shock-eyelet interface and geometry-adjustment function.

Genuine Specialized S189900096 provides the factory-spec 8 × 15 × 6.5mm steel bushing pair used across a broad range of Specialized mountain and Turbo platforms.

Stage 21 Bikes carries genuine Specialized factory replacement parts and hard-to-find OEM suspension hardware for Stumpjumper, Enduro, Levo, Kenevo, Status, Epic, Chisel, and other Specialized platforms.