Upgrade the rear axle hardware on your KLX140 with JTI Billet Axle Blocks / Chain Adjusters. CNC machined from 6061-T6 billet aluminum, these axle blocks are designed to provide a strong, lightweight, and more precise solution for rear wheel and chain adjustment.
Machined from 6061-T6 billet aluminum, JTI Axle Blocks deliver strength and durability while weighing approximately 30% less than the factory components.
The clean, streamlined design adds a premium billet appearance while maintaining the functionality needed for quick and accurate chain adjustments.
Integrated alignment marks on both the top and bottom of each axle block make it easy to reference and match the axle position when adjusting chain tension.
JTI Axle Blocks are also intentionally longer than stock and offset in design. This reduces the amount of adjustment bolt extension required as the axle moves rearward, helping reduce stress on over-extended adjuster bolts and the potential for bending or failure.
These axle blocks are designed around the specific fitment requirements of the applicable models. Please see the fitment information below to confirm compatibility with your motorcycle.
Available in:
Raw machined finish – Highlights the precision CNC-machined billet.
Factory Edition – Matte black Cerakote with our signature contrast-cut finish.
CNC machined from 6061-T6 billet aluminum
Approximately 30% lighter than stock
Longer and offset compared to stock axle blocks
Helps reduce stress on extended chain adjuster bolts
Alignment marks on top and bottom
Makes chain adjustment and axle alignment easier
Strong, lightweight construction
Available in raw machined or Factory Edition matte black Cerakote
Signature contrast-cut finish on Factory Edition models
Easy installation
Washer is no longer used with the JTI axle blocks
Lighter. Stronger. Easier to adjust. JTI Billet Axle Blocks bring precision billet construction to one of the most frequently adjusted components on your KLX140.
Fits: 08-Present Kawsaki KLX140 all models
20-25 KLX230R
98-26 KX80/KX85/KX100/KX112
