2PCS Rear Axle Blocks Chain Adjuster- with Dual-Side Measurement Scale - for Precise Alignment and Smooth Riding, Fit for CRF300L CRF300LA CRF300LR CRF300LRA 2021-2024 CRF250L/CRF250M 2012-2020

Core Functions:Upgrade your ride with the CNC Chain Tensioner, a high-performance dirt bike rear axle block, CNC chain tensioner designed for precision and durability. Perfect for CRF250R, CRF250L, CRF250F, and 140cc pit bike parts, this chain adjuster ensures smooth and secure chain alignment, enhancing your bike’s performance on and off the track.Key Features:Precision CNC Machining – Made from high-quality aluminum for superior strength.Easy Installation – Simple bolt-on design for quick setup as a rear chain adjuster or motocross chain tensioner. Optimal Chain Control – Adjusts chain slack with precision, reducing wear and improving power transfer. Notes:1.Please check carefully whether your model is included in the fitment before purchasing.2.The product does not contain installation instructions. If you have any questions about that, we kindly recommend you go to the nearby mechanic to ask for professional instructions.

• Fitment: Dirt bike rear axle block CNC chain tensioner fits CRF250L CRF250M 2012-2019, CRF250R ALLY 2017-2018, CR250R, CRF250R, and 140cc pit bike parts. Also compatible with accesorios para CRF 250F. Diameter: 15 mm/0.59 in, Width: 31 mm/1.22 inches, length: 89 mm/3.50 inches. For more size information, please refer to the image. Please confirm that the size is suitable for your vehicle model before purchasing
• Function: The chain tensioner adjuster allows effortless adjustment, while the scales guarantee rear axle blocks symmetry, This prevents stretching and slipping, ensuring smooth power transmission, reducing uneven tire wear and enhancing riding stability
• Features: Motorcycle axle block chain adjuster features dual-side measurement scales and an integrated adjustment rod, ensuring precise rear axle alignment. Made with CNC-machined precision, this rear axle blocks chain adjuster is lightweight yet resistant to deformation, ensuring long-lasting durability for motocross and trail use
• Performance: The motorcycle axle block chain adjuster ensures optimal chain tension, preventing slippage and maintaining smooth performance. The chain tensioner adjuster allows easy fine-tuning for secure riding
• Package Included: 2 X red chain tensioner adjuster, it is easy to install without the need for special tools