JT Sprocket For Honda CB500 1972-1977 Front 17T - 726.21.57
Not Available
Currently unavailable
Currently out of stock
This product is not available at the moment. Check back later or explore other options below.
Product Information
Full details
The JT Sprocket (726.21.57) is an essential replacement part for owners of 1972-1977 Honda CB500 motorcycles who are looking to maintain or restore their drivetrain efficiency. Engineered for optimal strength and reduced weight through advanced computer-aided design, this sprocket provides a reliable power transfer from the engine to the rear wheel. While it is built to high specifications, users should ensure their chain and rear sprocket are in good condition when installing to prevent uneven wear on the new component.
All features
| Model Part Number | 726.21.57 |
|---|---|
| Brand | JT |
Extended Product Information
FAQs
Is this sprocket compatible with a Honda CB550?
This specific part is engineered for the Honda CB500 (1972-1977). While some parts share similarities, verify the part number 726.21.57 against your specific frame and engine code.
Does this sprocket come with a retaining clip?
This product listing is for the sprocket itself. Please reuse your existing mounting hardware or purchase a new retainer if the old one is damaged.
Should I replace the chain when replacing this sprocket?
It is highly recommended to replace the chain and rear sprocket simultaneously to ensure all components seat together correctly and have an equal lifespan.
How do I know if my current sprocket is worn out?
Inspect the teeth for hooking, thinning, or sharp edges. If the teeth look like a shark fin rather than a rounded profile, the sprocket is worn.
Can I use this with a heavy-duty O-ring chain?
Yes, as long as the chain pitch matches the sprocket, which is standard for the Honda CB500 series.
Troubleshooting
Difficulty sliding sprocket onto shaft
Ensure the output shaft splines are clean of old grease and rust; check for any burrs on the shaft.
Increased noise after installation
Check that the chain is properly aligned and adjusted; verify the sprocket nut or retainer is torqued correctly.
Chain jumping or clicking
Ensure the rear sprocket is not worn out; mixing a new front sprocket with a heavily worn rear one can cause chain mismatch issues.
Pros and Cons
Pros
- Computer-designed for maximum durability
- Lightweight construction reduces unsprung weight
- Precise fitment for Honda CB500 (1972-1977)
- High-quality material longevity
Cons
- Requires proper chain tension adjustment after installation
- May accelerate wear on old or stretched chains
- Specific to a narrow range of model years
Setup, Compatibility & Care
Installation of the front sprocket requires removing the sprocket cover and securing the retainer or nut according to your motorcycle's service manual. Always ensure the output shaft splines are clean and free of debris before sliding the new sprocket into place. Compatibility is strictly limited to the Honda CB500 produced between 1972 and 1977. For care, keep your chain properly lubricated and adjusted to the manufacturer's specified slack to prevent premature tooth wear or chain failure.