Specialized Roubaix Seatpost Wedge Assembly Titanium Bolt OEM

Specialized OEM Saddle Rail Clamp & Hardware Kit

For Roval Alpinist Seatposts | Titanium Hardware | Genuine Factory Replacement

Restore secure saddle mounting with the Specialized Factory Replacement Saddle Rail Clamp & Hardware Kit for Roval Alpinist seatposts. This genuine OEM kit includes precision-machined upper and lower rail clamps, threaded and unthreaded barrel nuts, and lightweight titanium mounting bolts to ensure a secure, creak-free saddle installation.

Designed for compatibility with both round and oversized saddle rails, this complete hardware kit delivers factory-correct fitment and reliable performance for road, gravel, and cross-country mountain bikes equipped with the Roval Alpinist seatpost system.

Genuine Specialized OEM Replacement

Maintain your bike with the exact hardware designed by Specialized.

Benefits include:

• Genuine Specialized factory replacement
• OEM fit and finish
• Complete replacement hardware kit
• No modification required
• Restores original saddle mounting performance

Ideal for replacing worn, damaged, or missing hardware.

Lightweight Titanium Hardware

Premium titanium bolts reduce weight while delivering exceptional strength and corrosion resistance.

Advantages include:

• Lightweight titanium construction
• Excellent corrosion resistance
• High strength-to-weight ratio
• Long service life
• Ideal for premium performance bikes

Designed for reliable performance in all riding conditions.

Supports Multiple Saddle Rail Standards

The included hardware accommodates common saddle rail sizes.

Compatible with:

• Standard round rails
• Oversized saddle rails
• Carbon rail saddles (when compatible with the seatpost and saddle manufacturer)

Always follow the saddle manufacturer's torque specifications.

Precision Saddle Adjustment

The OEM clamp system provides secure saddle retention and accurate positioning.

Features include:

• Precision-machined upper and lower clamps
• Smooth saddle angle adjustment
• Secure clamping force
• Helps eliminate creaks and movement
• Factory-correct installation

Kit Contents

Rail Clamps

• Upper Rail Clamp
• Lower Rail Clamp

Threaded Barrel Nuts

• M5 × 0.8 (1)
• M6 × 1.0 (1)

Unthreaded Barrel Nuts

• M5 × 0.8 (1)
• M6 × 1.0 (1)

Titanium Bolts

• M6 × 1.0 × 30mm (1)
• M5 × 0.8 × 30mm (1)

Specifications

• Brand: Specialized
• Product: Saddle Rail Clamp & Hardware Kit
• MPN: S204900004
• Application: Roval Alpinist Seatpost
• Bolt Material: Titanium
• Rail Compatibility: Standard Round & Oversized Rails
• Hardware Included: Yes

OEM Compatibility

Roval Seatposts

• 2027 Roval Control SL Seatpost
• 2027 Roval Alpinist Seatpost

Tarmac SL8

• 2023 S-Works Tarmac SL8 Carbon Seatpost
• 2024–2026 Tarmac SL8 (Comp, Expert, Pro & Framesets)
• 2024–2026 S-Works Tarmac SL8 (All Complete Bikes, LTD Models & Framesets)

Aethos

• 2021–2026 Aethos (Comp, Expert, Pro & Framesets)
• 2021–2026 S-Works Aethos (All Models & Framesets)

Crux

• 2022–2026 Crux (Comp, Expert, Pro & Framesets)
• 2022–2026 S-Works Crux (All Models & Framesets)

Epic World Cup

• 2023–2026 Epic World Cup Expert
• 2023–2026 Epic World Cup Pro
• 2023–2026 S-Works Epic World Cup
• 2023–2026 Epic World Cup Framesets

Installation Notes

• Tighten bolts evenly to the saddle manufacturer's torque specification.
• Use the correct hardware for your saddle rail type.
• Always install using a calibrated torque wrench.

Key Features

✔ Genuine Specialized OEM replacement kit

✔ Designed for Roval Alpinist seatposts

✔ Complete saddle clamp and hardware set

✔ Lightweight titanium mounting bolts

✔ Supports standard and oversized saddle rails

✔ Precision-machined clamp components

✔ Corrosion-resistant hardware

✔ Factory fit and appearance

Ideal For

✔ Replacing worn or damaged saddle hardware

✔ Roval Alpinist seatpost maintenance

✔ New saddle installations

✔ Lightweight performance builds

✔ Road, gravel, and XC mountain bikes

Why Choose the Specialized OEM Saddle Rail Clamp Kit?

• Genuine Specialized replacement kit ensures perfect compatibility with Roval Alpinist seatposts
• Complete hardware package includes clamps, barrel nuts, and lightweight titanium bolts
• Supports both standard and oversized saddle rail designs for broad compatibility
• Precision-machined components provide secure saddle retention and smooth adjustment
• Corrosion-resistant titanium hardware offers long-term durability with minimal weight
• Trusted OEM quality for Tarmac SL8, Aethos, Crux, Epic World Cup, and Roval seatpost systems

The Specialized Factory Replacement Saddle Rail Clamp & Hardware Kit provides everything needed to restore or service your Roval Alpinist seatpost. Featuring genuine OEM clamps, titanium hardware, and compatibility with multiple saddle rail standards, this kit delivers lightweight performance, secure saddle retention, and factory-quality reliability.

Specifications Summary