Best Swing Arm Extension For Motorcycle: Compare Fit and Specs

#1 · Best Overall

1. SFriding Z900 Swingarm Kit

Best for: Z900 adjustable stretch setup.

Why it ranks #1: Its 6–9-inch range, stated 7075 T6 aluminum, and included brake line and chain make it a well-specified option for compatible Z900 models.

A 6-to-9-inch adjustment range lets Kawasaki Z900 owners set the extension within a broad, clearly stated span. SFriding includes a brake line and chain, and specifies a 7075 T6 aluminum body with anodized, CNC-machined surfaces for riders weighing material and finish alongside fitment.

The listing names the 2020–2024 Kawasaki Z900 as the application and says the stock brake caliper bracket still works, which can keep that existing component in the setup. Its 6-to-9-inch adjustment range supports choosing a wheelbase extension for drag racing, stunt riding, or street cruising, uses identified by the product. The included brake line and chain address two related parts, while the anodized finish is stated to resist corrosion, fading, and scratches. The listing also says no modification is needed.

Skip it if you need an extension under 6 inches; this kit's range starts at 6 inches for the listed Z900 application.

For a 2020–2024 Kawasaki Z900 owner seeking a longer wheelbase and an adjustable 6-to-9-inch range, this kit includes a brake line and chain. Its stated fitment does not cover other motorcycle models.

Listed on Amazon as: 6-9" Stretch Aluminum Swingarm Extensions with 36'' Brake Line and Chain for KAWASAKI Z900 2020-2024

#2 · Hayabusa Fit

2. Arashi Hayabusa Extension Kit

Best for: Non-ABS Hayabusa stretch.

Why it ranks #2: It is specified for non-ABS Hayabusa Gen 2 and 3 models and includes a 6.7–9.8-inch range with CNC-machined 6061-T6 aluminum.

A 6.7-to-9.8-inch adjustment range gives compatible Suzuki Hayabusa GSXR 1300 owners a longer maximum extension than a 9-inch-limited setup. Arashi specifies a 6061-T6 CNC-machined aluminum kit for Gen 2 and Gen 3 non-ABS models, with an anodized coating and included brake line and chain.

The stated application covers Suzuki Hayabusa GSXR 1300 Gen 2 and Gen 3 models from 2008–2019 and 2020–2024, but expressly specifies non-ABS. The 6.7-to-9.8-inch range allows adjustment within that span, while the product description says it is engineered for the bike and easy to adjust. CNC machining and 6061-T6 aircraft-grade aluminum are specified, and the anodized coating is intended to keep the finish looking good. The title identifies a brake line and chain kit.

Skip it if you have an ABS Hayabusa; this listing specifies non-ABS models and does not list ABS fitment.

This suits a non-ABS Suzuki Hayabusa GSXR 1300 Gen 2 or Gen 3 owner seeking a stretch adjustable up to 9.8 inches. Its non-ABS restriction is a key fit boundary, so it is not the listed choice for ABS models.

Listed on Amazon as: Arashi Black 6.7"-9.8" Swingarm Extensions Brake line Chain Kit for Suzuki Hayabusa GSXR 1300 Gen 2 3 2008-2019 2020-2024 Non-ABS, Motorcycle modification Accessories Parts CNC Aluminum

#3 · KTM 390 Kit

3. FTD Customs KTM 390 Duke

Best for: 2024 KTM Duke stretch kit.

Why it ranks #3: This model-specific kit lists a 4.5–9-inch stretch, aircraft-grade 6061 billet aluminum, stainless fasteners, a 55-inch brake line, and a 520×150-link chain.

A 4.5-to-9-inch adjustment range lets owners of the 2024 KTM 390 Duke choose how far to extend the swingarm. FTD Customs pairs the bolt-on billet aluminum extensions with a 55-inch brake line and 520-by-150-link chain, addressing several parts of the stretch setup in one kit.

The aircraft-grade 6061 billet aluminum construction gives this kit a specified material and manufacturing basis, while the bolt-on format keeps the extensions distinct from a fabricated swingarm replacement. Its included 55-inch brake line and 520-by-150-link chain support a longer setup without sourcing those listed components separately. Large 3/8-inch stainless steel fasteners are included, a practical choice for fastening the extensions where rust resistance is a stated priority. The listed application is the 2024 KTM 390 Duke.

Skip it if you need more than 9 inches of stretch; this kit's listed adjustment range ends at 9 inches.

For a 2024 KTM 390 Duke owner planning a moderate swingarm stretch, this kit bundles the extensions, brake line, and chain. Its application is specific to that model, and its stated range tops out at 9 inches.

Listed on Amazon as: Swingarm Extensions to fit 2024 KTM 390 Duke Black Engraved 4.5-9" Stretch with 55" Brake Line and 520x 150 Link Chain – Made in the USA

#4 · Honda Fit

4. FTD Customs CBR1000RR

Best for: 2007 CBR1000RR bolt-on kit.

Why it ranks #4: The 2007 Honda CBR 1000 listing specifies a 4.5–9-inch stretch and 6061 billet aluminum with large stainless fasteners.

A 4.5-to-9-inch stretch range gives owners of the listed 2007 Honda CBR 1000 models a choice of extension length. FTD Customs supplies bolt-on billet aluminum extensions with large 3/8-inch stainless steel fasteners, emphasizing a ready-to-fasten setup rather than extensions sold without hardware.

The manufacturer identifies the application as 2007 CBR1000RR swingarm extensions and specifies aircraft-grade 6061 billet aluminum. That material and the bolt-on format give buyers concrete construction and installation details to weigh when planning a stretch. The 4.5-to-9-inch range defines the available adjustment, while the included 3/8-inch stainless steel fasteners provide the listed mounting hardware. FTD Customs says the fasteners eliminate rusting and bending. The title identifies compatibility with 2007 Honda CBR 1000 models.

Skip it if you need a kit listed for a different model year; this product specifies 2007 Honda CBR 1000 models.

This is a model-year-specific option for a 2007 Honda CBR1000RR owner choosing a stretch between 4.5 and 9 inches. The listing does not provide a broader year range, so its stated application is the relevant boundary.

Listed on Amazon as: Black Engraved 4.5-9" Swingarm Extensions Compatible with 2007 Honda CBR 1000 Models – Made in the USA

#5 · KTM 200 Kit

5. FTD Customs KTM 200 Duke

Best for: 2023 KTM 200 Duke stretch.

Why it ranks #5: The KTM 200 Duke kit offers a listed 4.5–9-inch stretch, 6061 billet aluminum, stainless fasteners, and a 55-inch brake line with chain.

A 4.5-to-9-inch stretch range gives the 2023 KTM 200 Duke owner room to select an extension length within the kit's stated limits. FTD Customs also includes a 55-inch brake line and 520-by-150-link chain, so the listed package covers more than the swingarm extensions alone.

The bolt-on extensions use aircraft-grade 6061 billet aluminum, pairing a specified material with a format intended to attach at the swingarm rather than replace it. The included brake line measures 55 inches, and the kit's 520-by-150-link chain supplies another listed component for a stretched configuration. Large 3/8-inch stainless steel fasteners come with the extensions; the manufacturer says they eliminate rusting and bending. The stated application is the 2023 KTM 200 Duke.

Skip it if you want a stretch shorter than 4.5 inches; this kit's adjustment range starts at 4.5 inches.

This is a focused option for a 2023 KTM 200 Duke owner who wants a selectable stretch and the listed line and chain together. The stated application is model-specific, and the adjustment range starts at 4.5 inches.

Listed on Amazon as: Swingarm Extensions to fit 2023 KTM 200 Duke Black Engraved 4.5-9" Stretch with 55" Brake Line and 520x 150 Link Chain – Made in the USA

#6

6. FTD Customs KTM 390 Duke

Best for: 2025 KTM Duke chain kit.

Why it ranks #6: Specified for the 2025 KTM 390 Duke, it includes a 4.5–9-inch stretch, 6061 billet aluminum, a 55-inch brake line, and a 520×150-link chain.

A 4.5-to-9-inch adjustment span lets a 2025 KTM 390 Duke owner select an extension length within the kit's stated range. FTD Customs includes a 55-inch brake line and 520-by-150-link chain alongside its bolt-on 6061 billet aluminum extensions, consolidating several listed stretch components.

The kit is specifically listed for the 2025 KTM 390 Duke, giving buyers a clear model-year application to match against their motorcycle. Its bolt-on extensions are made from aircraft-grade 6061 billet aluminum, and the included large 3/8-inch stainless steel fasteners provide the stated mounting hardware. A 55-inch brake line and 520-by-150-link chain are also included, helping assemble the listed stretch setup without sourcing those named parts separately. The adjustable extension range is 4.5 to 9 inches.

Skip it if you need more than 9 inches of stretch; this kit's listed adjustment range ends at 9 inches.

For a 2025 KTM 390 Duke owner planning an adjustable stretch, this package includes a brake line and chain as well as the extensions. Its stated fitment is specific to the 2025 model, and the range ends at 9 inches.

Listed on Amazon as: Swingarm Extensions to fit 2025 KTM 390 Duke Black Engraved 4.5-9" Stretch with 55" Brake Line and 520x 150 Link Chain – Made in the USA

#7

7. FTD Customs KTM 390 Duke

Best for: 2023 KTM 390 Duke setup.

Why it ranks #7: This 2023 KTM 390 Duke listing specifies a 4.5–9-inch stretch, 6061 billet aluminum, stainless fasteners, a brake line, and a chain.

A 4.5-to-9-inch stretch range lets a 2023 KTM 390 Duke owner select an extension length within the kit's stated limits. FTD Customs includes a 55-inch brake line and 520-by-150-link chain, alongside bolt-on aircraft-grade 6061 billet aluminum extensions and stainless fasteners.

The listed 2023 KTM 390 Duke application gives a specific model year to consider before planning installation. Its bolt-on extensions are made from aircraft-grade 6061 billet aluminum, with large 3/8-inch stainless steel fasteners supplied as the mounting hardware. The 4.5-to-9-inch range makes the available stretch explicit, and the title lists a 55-inch brake line and 520-by-150-link chain for the setup. FTD Customs states that the fasteners eliminate rusting and bending.

Skip it if you need an extension shorter than 4.5 inches; this kit's stated range begins at 4.5 inches.

This is a model-specific choice for a 2023 KTM 390 Duke owner who wants a 4.5-to-9-inch stretch with the named line and chain included. Its minimum listed extension is 4.5 inches.

Listed on Amazon as: Swingarm Extensions to fit 2023 KTM 390 Duke Black Engraved 4.5-9" Stretch with 55" Brake Line and 520x 150 Link Chain – Made in the USA

#8

8. FTD Customs KTM 390 Duke

Best for: 2022 KTM 390 Duke stretch.

Why it ranks #8: For the 2022 KTM 390 Duke, the kit lists a 4.5–9-inch stretch and includes a 55-inch brake line and 520×150-link chain.

A 4.5-to-9-inch adjustment range gives 2022 KTM 390 Duke owners several listed stretch lengths to choose from. The FTD Customs package combines bolt-on 6061 billet aluminum extensions and 3/8-inch stainless fasteners with a 55-inch brake line and 520-by-150-link chain.

The 2022 KTM 390 Duke is the listed application, while the 4.5-to-9-inch range sets the available extension span for planning a stretched setup. The extensions use aircraft-grade 6061 billet aluminum and a bolt-on format, with large 3/8-inch stainless steel fasteners included for attachment. The title also names a 55-inch brake line and 520-by-150-link chain, bringing those components into the same package. FTD Customs says the stainless fasteners eliminate rusting and bending.

Skip it if you need a swingarm extension beyond 9 inches; this kit's stated range stops at 9 inches.

For a 2022 KTM 390 Duke owner wanting an adjustable 4.5-to-9-inch stretch, this package adds a brake line and chain to the extensions. Its stated fitment and maximum extension define where it applies.

Listed on Amazon as: Swingarm Extensions to fit 2022 KTM 390 Duke Black Engraved 4.5-9" Stretch with 55" Brake Line and 520x 150 Link Chain – Made in the USA

#9

9. FTD Customs KTM 390 Duke

Best for: 2017 KTM 390 Duke fit.

Why it ranks #9: This 2017 KTM 390 Duke kit lists a 4.5–9-inch stretch and the included brake line and chain, but its fitment is limited to that model application.

A 4.5-to-9-inch stretch range lets a 2017 KTM 390 Duke owner choose an extension length within the range stated for this kit. FTD Customs pairs bolt-on 6061 billet aluminum extensions with large stainless steel fasteners, plus the 55-inch brake line and 520-by-150-link chain named in the title.

The listing identifies the 2017 KTM 390 Duke as the intended application, an important boundary when choosing a model-specific extension. Aircraft-grade 6061 billet aluminum forms the bolt-on extensions, and the supplied 3/8-inch stainless steel fasteners provide the listed attachment hardware. The package title also specifies a 55-inch brake line and a 520-by-150-link chain, so buyers can account for these components as part of the planned stretched setup. The stated adjustment range runs from 4.5 to 9 inches.

Skip it if you want less than 4.5 inches of stretch; this kit's stated range begins at 4.5 inches.

This kit fits the stated use case of a 2017 KTM 390 Duke owner seeking a 4.5-to-9-inch stretch with a line and chain included. Its listed model year and minimum extension are the key boundaries.

Listed on Amazon as: Swingarm Extensions to fit 2017 KTM 390 Duke Black Engraved 4.5-9" Stretch with 55" Brake Line and 520x 150 Link Chain – Made in the USA

#10

10. FTD Customs KTM 200 Duke

Best for: 2021 KTM 200 Duke kit.

Why it ranks #10: It is listed for the 2021 KTM 200 Duke with a 4.5–9-inch stretch, brake line, and chain; its narrower model-specific fit limits broader use.

A 4.5-to-9-inch stretch range gives the 2021 KTM 200 Duke owner a defined choice of extension length. FTD Customs pairs its bolt-on 6061 billet aluminum extensions with a 55-inch brake line and 520-by-150-link chain, and includes large 3/8-inch stainless steel fasteners.

The stated application is the 2021 KTM 200 Duke, making model-year fit a central selection point. Aircraft-grade 6061 billet aluminum forms the bolt-on extensions, while the included 3/8-inch stainless steel fasteners provide the specified attachment hardware. The package title also lists a 55-inch brake line and 520-by-150-link chain, covering additional named parts for a stretched setup. Its 4.5-to-9-inch adjustment range indicates the extension lengths offered, and the manufacturer says the fasteners resist rusting and bending.

Skip it if you need more than 9 inches of extension; this kit's listed range ends at 9 inches.

For a 2021 KTM 200 Duke owner planning a stretch within 4.5 to 9 inches, this package includes the brake line and chain with its extensions. Its stated model year is the key fit consideration.

Listed on Amazon as: Swingarm Extensions to fit 2021 KTM 200 Duke Black Engraved 4.5-9" Stretch with 55" Brake Line and 520x 150 Link Chain – Made in the USA