FOX 36 Rhythm / Marzocchi Bomber Z1 Air Shaft Assembly
820-02-562-KIT
FOX 36 Rhythm / Marzocchi Bomber Z1 Air Shaft Assembly
Shop genuine FOX air shaft assemblies for FOX 36 Rhythm and Marzocchi Bomber Z1 air forks at ProFlow Suspension, Queenstown, New Zealand.
Replace an existing assembly or change your fork’s travel within its approved range. Our suspension workshop can help identify the correct air shaft and arrange professional installation.
Choose by fork generation, travel and FOX part number. Matching travel or stanchion diameter alone does not confirm compatibility.
FOX 36 Rhythm 2019–2023 / Marzocchi Bomber Z1 2019–2024
Earlier-generation FLOAT NA2 assemblies with a 1.275-inch bore.
| Travel | FOX part number |
|---|---|
| 130mm | 820-02-550-KIT |
| 140mm | 820-02-549-KIT |
| 150mm | 820-02-548-KIT |
| 160mm | 820-02-547-KIT |
| 170mm | 820-02-546-KIT |
| 180mm | 820-02-545-KIT |
The permitted travel range depends on your specific fork and wheel size.
FOX 36 Rhythm: 2024-generation standard chassis
Redesigned Rhythm assemblies with a 1.275-inch bore, listed in FOX’s 2024 and 2025 parts information.
| Travel | FOX part number |
|---|---|
| 130mm | 820-02-623-KIT |
| 140mm | 820-02-622-KIT |
| 150mm | 820-02-621-KIT |
| 160mm | 820-02-620-KIT |
| 170mm | 820-02-619-KIT |
These have different part numbers from the earlier Rhythm assemblies. Confirm your fork generation before ordering.
FOX 36 Rhythm E-Optimized: 2024-generation chassis
Dedicated Rhythm E-Optimized assemblies with a 1.194-inch bore.
| Travel | FOX part number |
|---|---|
| 130mm | 820-02-628-KIT |
| 140mm | 820-02-627-KIT |
| 150mm | 820-02-626-KIT |
| 160mm | 820-02-625-KIT |
| 170mm | 820-02-624-KIT |
E-Optimized assemblies differ from the standard Rhythm versions. A fork being fitted to an e-bike does not, by itself, identify which assembly it needs.
Marzocchi Bomber Z1: 2025-generation chassis
Z1 assemblies listed by FOX for the 2025 model, with a 1.275-inch bore.
| Travel | FOX part number |
|---|---|
| 100mm | 820-02-692-KIT |
| 130mm | 820-02-676-KIT |
| 140mm | 820-02-675-KIT |
| 150mm | 820-02-674-KIT |
| 160mm | 820-02-673-KIT |
| 170mm | 820-02-672-KIT |
The 100mm assembly is a specific application and requires a compatibility check before purchase.
Which air shaft fits my fork?
Send ProFlow Suspension your fork’s four-character ID code or serial number, current travel and desired travel. We can help confirm the correct part, including later model-year forks that carry over an earlier chassis design.
These tables cover FOX 36 Rhythm and Marzocchi Bomber Z1 air shaft assemblies only. They are not a universal fitment guide for other FOX 36 models.
Can I increase or reduce my fork’s travel?
A compatible air shaft can change travel within the fork’s approved configuration. Check both the fork’s permitted travel range and your bike manufacturer’s fork requirements before changing travel.
Can ProFlow install the air shaft?
Yes. Contact our Queenstown suspension workshop to arrange installation, discuss a travel change or combine the work with fork servicing.
Select the correct assembly for your fork and order from ProFlow Suspension. Unsure which version you need? Contact us for expert fitment advice before purchasing.