Best in 7 days
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Ships within 48 hours · Estimated delivery Oct 13 - Oct 18
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Description
K&N Air Filter HA-7521 - Honda NC750X 745 '21K&N's high flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance while providing excellent engine protection for your motorcycle. Features Designed to provide increased horsepower and torque Pleated media provides a large filtration area, offering long service intervals Multiple
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Best in 7 days
Best in 7 days
Best in 7 days
![Bloodstained Mire [Khans of Tarkir]](https://cdn.shopify.com/s/files/1/0555/1020/4467/products/532deb52-6977-5dd6-a5f8-8f7ac4021bce.jpg?v=1641359439)
Best in 7 days
4.8 ★★★★★
Based on 2300 reviews
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Product Reviews
★★★★★ 5
These hog out the hole nicely
Size: CB-M03H
These hog out the hole nicely
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 7, 2025
★★★★★ 5
Very nice product.
Size: CB-003
Haven’t needed to use it yet, but it is definitely a quality product.
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Reviewed in the United States on September 1, 2025
★★★★★ 5
It works
Size: CB-M03H
I use it on a power tool as regular drill bits seem to not work to well with the plugs. They leak air. Doing it by hand is to hard
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Reviewed in the United States on June 20, 2025
★★★★★ 1
Doesn’t Cut Steel Belts in Tires
Size: CB-M03H
Doesn’t cut steel belts in tires to facilitate repair.
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Reviewed in the United States on May 5, 2025
★★★★★ 5
Pattern and roughness appropriate but still need to test
I haven't had a flat tire yet, so I also haven't had occasion to test these but they seem like great value for an extremely low price (especially versus a new tire.) I have handled them to try and gauge how quickly they'd smooth a hole, and they're rough / sharp and aggressive enough that I expect them to work quickly and well on not only tires, but on a variety of other materials. This pattern in particular should allow material to be shed and then passed backward pretty easily without clogging things up or slowing them down. If you've bothered to buy a patch kit for your tires, you really ought to have one of these around.
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Reviewed in the United States on January 18, 2026
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