Specialized Stumpjumper 15 Carbon Seatstay (Satin Black) (S1-S2)

Specialized Stumpjumper 15 Carbon Seatstay Description:

The Specialized Stumpjumper 15 Carbon Seatstay is a replacement carbon seatstay for Stumpjumper 15 carbon frame full suspension mountain bikes. Available in multiple sizes, this chainstay will include the bearings to enable an easier installation.

Note: UDH derailleur hanger and thru-axle are sold separately.

Features:

• Carbon fiber construction provides excellent stiffness for efficient power transfer and snappy handling
• Available in three sizes that can only be used on the matching Stumpjumper frame sizes:
• S1-S2: Only fits 27.5″ wheels
• S3-S4: Fits both 29″ and 27.5″ wheels
• S5-S6: Fits both 29″ and 27.5″ wheels
• Includes Horst Pivot Bearings and Middle Spacers

Specifications:

• Compatibility: 2025+ Stumpjumper 15 Carbon Bikes and Framesets
• Rear Hub Spacing: 12 x 148mm Thru Axle (Boost)
• Material: Carbon Fiber
• Color: Satin Black

This product was added to our catalog on May 1, 2026