Chain Tensioner Bonamici Racing Yamaha YZF-R9 (25-26) CHAD17
Chain Tensioner Bonamici Racing Yamaha YZF-R9 (25-26) CHAD17
Delivery time on request
Precise Chain Adjustment for Yamaha YZF-R9
The Bonamici Racing CHAD17 chain adjuster is a high-quality adjustment and tuning part specifically designed for the Yamaha YZF-R9 (2025–2026). It replaces the stock chain adjuster with a precise, durable solution that not only offers higher mechanical stability but also enhances the visual appeal.
Key Features & Benefits
CNC machined from Ergal aluminum
The chain adjuster is made from a solid aluminum block and precisely CNC-machined. This provides high strength, low weight impact, and a premium surface that contributes to the sporty overall impression of your R9.
Micrometrically adjustable system
Thanks to the finely graduated adjustment scale, the chain position can be adjusted accurately and reproducibly – for optimal chain tension under varying conditions.
High-quality bearings
Built-in high-performance bearings ensure nearly frictionless movement during adjustment and improve adjustability compared to simple, rubbed systems.
Aesthetically customizable
The outer structure is black, while the inner component is customizable in various colors – ideal for color matching your motorcycle.
Technical Specifications & Compatibility
-
Product: Bonamici Racing Chain Adjuster
-
Model: CHAD17
-
Fits: Yamaha YZF-R9 (Model Years 2025–2026)
-
Material: CNC machined Ergal aluminum
-
Adjustment: Micrometrically finely adjustable
-
Bearings: High-quality precision bearings
-
Color: outer black, inner variable customizable
Advantages in Use
-
Optimal chain tension: Precise adjustment extends the lifespan of the chain and sprocket.
-
Improved stability: Evenly tensioned chain supports constant power transmission and stable driving dynamics.
-
Quick adjustment: Easily accessible adjustment steps without much effort.
-
Sporty look: CNC aluminum design matching the sporty character of the R9.
Installation
-
Direct replacement for the stock chain tensioner
-
Perfect fit for Yamaha YZF-R9 (25–26)
-
No modification or milling of the swingarm necessary
-
Installation can be performed with simple tools
Conclusion
The Bonamici Racing CHAD17 chain tensioner is a premium solution that provides you with precise, repeatable chain adjustment as well as an aesthetic upgrade for your Yamaha YZF-R9 (2025–2026). Thanks to CNC manufacturing, micrometric adjustment, and high-performance bearings, it is particularly suitable for sporty riders and track day use – without compromising on everyday usability or design.
👉 Improve chain play now and optimize performance & look of the R9.
Pickup availability could not be loaded
About Us
About Us
Our passion for quality and innovation drives us to offer you the best products and services for motorcycle enthusiasts. From exclusive high-performance parts to tailor-made solutions — your riding experience is at the center of everything we do.
Shipping & Returns
Shipping & Returns
We ship with DHL and FedEx — if requested, also via express. If an item is in stock, shipping via express can, in many cases, be delivered within 1 business day. Standard delivery time is typically about 2–5 business days within the country, and worldwide usually about 1 week. Please check the available shipping options and transit times in the cart, as we offer several shipping providers depending on the country.
Returns must be registered in advance by email and are possible according to our return policy (14 days to request a return + 14 days return shipping deadline after approval). Please note: Unregistered returns will not be accepted. You can find all details on the terms, exceptions, and refunds in our return policy.
Your payment information is processed securely. We do not store any credit card details and we have no access to your credit card information.
More information in our FAQs
Write to our team via email – we’ll get back to you as quickly as possible.
How long does it take to process my order?
How long does it take to process my order?
If the item is in stock, we usually process your order very quickly; in many cases it can even be shipped the same day.
Our processing times are Monday to Friday, 07:30–16:30.
Do you ship internationally?
Do you ship internationally?
Yes, we ship worldwide. Shipping is carried out depending on the country and the selection, via DHL or FedEx.
What is your return policy?
What is your return policy?
Returns must be registered in advance by email. You can request a return within 14 days of receiving the item and, after approval, you have another 14 days to send it back.
Important: Unregistered returns are not accepted. All details can be found in our cancellation policy.
What does “delivery time on request” mean?
What does “delivery time on request” mean?
“Delivery time on request” means the item is generally not in stock right away and may need to be ordered separately. Please contact us before purchase – we’ll check availability and tell you the estimated delivery time.
Do you offer express shipping?
Do you offer express shipping?
Yes, we offer express shipping. If an item is in stock, in many cases shipping can be completed within 1 business day (depending on the country and shipping option). You can see the available shipping methods in the shopping cart.

