12x142 mountain bike rear wheel axle

12x142 rear thru axle for MTB

The 12x142 rear MTB thru axle has become a key standard on modern mountain bikes. Designed to provide greater stiffness in the rear triangle and a solid connection between the hub and the frame, it offers improved handling precision, better pedaling efficiency, and enhanced control on technical terrain. Unlike traditional quick-release systems, this thru axle increases wheel stability and reduces flex, especially under hard braking or on rough trails.

Key features

• Axle Diameter: 12 mm
  Ensures excellent mechanical stiffness, ideal for performance-oriented or aggressive riding.

• Axle Spacing: 142 mm
  A widely adopted standard, compatible with most recent MTB frames and rear wheels.

• Thru Axle Mounting System
  Provides a strong and secure interface between the hub and frame dropouts, ensuring perfect alignment of the brake rotor and drivetrain.

• Durable Materials
  Typically made from machined aluminum or treated steel, offering reliability, strength, and long service life.

Benefits of a 12x142 axle

• Smoother, more precise wheel rotation
  Keeps the wheel perfectly centered, optimizing hub performance and speed sensation.

• Improved power transfer
  Less frame and wheel flex means more of your pedaling power goes directly into forward motion.

• Enhanced bike control
  Increased lateral stiffness provides better stability in descents and technical sections.

• Easy installation and removal
  Thanks to accurate threading and ergonomic axle head design.

Compatibility notes

Before choosing your 12x142 rear MTB axle, make sure to check:

• Thread pitch (commonly M12x1.0 / M12x1.5 / M12x1.75 depending on frame and axle brand)

• Overall axle length as specified by your frame manufacturer

• Closing system (lever integrated or hex/Allen key type)

Who is it for ?

This axle system suits recreational riders as well as advanced mountain bikers, especially in XC, Trail, Enduro, or All-Mountain riding, where rear wheel stiffness and stability play a crucial role in traction, handling, and power transfer.