Specialized Replacement Rear Thru-Axle Rear MTN Boost 12X148

Specialized 148mm Boost Rear Thru-Axle (Bolt-On)Factory Replacement – Minimal Taper / 6mm Allen Head

This Specialized factory rear thru-axle is a bolt-on 148mm Boost (12x148) axle featuring a minimal taper design to improve stiffness and rear-end tracking under load. It uses a 6mm internal hex for clean installation and is spec’d for a wide range of Specialized mountain bikes using Boost rear hub spacing.

Key Features

• Genuine Specialized factory replacement rear thru-axle

• Minimal taper design for improved stiffness

• 6mm Allen (internal hex) head

• Bolt-on style axle for 12x148 Boost rear spacing

Specifications

• Hub Spacing: 148 x 12mm (Boost)

• Overall Length: 174.5mm

• Thread Pitch: M12 x 1.0

• Tool Interface: 6mm Allen key

• Torque Spec: Consult the bike’s owner’s manual for the correct torque value

OEM Bike Compatibility (Where Used)

Used as original equipment on the following models:

2026

• Turbo Tero X 6.0 / 5.0

• STATUS 2 (170 ZERO / 170 DH / 170 / 140 ZERO)

• S-Works Epic World Cup Frameset / Epic World Cup

• S-Works Epic 8 (Frameset / EVO / complete models)

• Epic World Cup (Pro / Expert)

• Epic 8 (Pro / Expert / EVO variants)

• Epic Hardtail Comp

2025

• Turbo Levo 3 (alloy/carbon trims including Expert T-Type & Comp)

• STATUS 2 (140 ZERO / 140)

• S-Works Epic World Cup (LTD / Frame / complete)

• Epic World Cup (Pro / Expert)

• Epic 8 (Pro / Expert / EVO variants)

• Epic Hardtail Comp

2024

• Turbo Levo SL 2 (Pro/Expert/Comp)

• Turbo Levo / Levo 3 (multiple trims)

• Turbo Kenevo SL 2 (Expert / Comp)

• Stumpjumper / Stumpjumper EVO (multiple trims + framesets)

• STATUS 2 (170/140 variants incl. ZERO/DH)

• S-Works Epic World Cup / S-Works Epic 8 variants

• Epic World Cup (Pro / Expert)

• Epic 8 (Pro / Expert / EVO variants)

2023

• Turbo Tero X 6.0 / 5.0 / 4.0

• Turbo Levo SL Kids

• Turbo Levo SL 2 / Turbo Levo / Levo 3 (many trims)

• Turbo Kenevo SL 2 (Expert / Comp)

• Stumpjumper / Stumpjumper EVO (many trims + framesets)

• S-Works Epic World Cup / Epic / Epic EVO family (many trims)

2022

• Turbo Levo (multiple trims)

• Turbo Kenevo SL (Expert / Comp)

• Stumpjumper / Stumpjumper EVO (multiple trims + framesets)

• S-Works Turbo Levo SL LTD / SL Frame

Notes for Listings / Fitment Guidance

• This axle is 148 Boost-specific and should not be used on 142mm or 157mm rear ends.

• Match length (174.5mm) and thread pitch (M12x1.0) to confirm compatibility.

• Many bikes share Boost spacing, but Specialized uses different axle lengths/pitches across model years, so these two numbers are the “must match” fields.

If you want, paste the Specialized SKU / S-number (if you have it) and I’ll format this into the same tight “Spec + OEM list + notes” template you’ve been using for the rest of the catalog.