MRP Noken High Volume Air Cap for Fox 38 WB-24-2221
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Pump Up the Volume and Take Your Lost Travel Back With the new Noken From MRP
The Noken is a fork upgrade designed to increase air-spring volume, reducing the air spring compression ratio and creating a more linear spring curve that mimics the plush feel of a coil spring. By expanding the air chamber space above the crown, the Noken increases spring volume by the equivalent of 1.1 Bottomless Tokens in RockShox Zeb forks or 1.5 volume spacers in Fox 38 forks. This simple upgrade addresses a key challenge for many riders with long-travel forks: finding the right balance between a supple initial stroke, strong mid-stroke support, and fully utilizing all the fork's travel. With the Noken, you can optimize that perfect trifecta.
Recent air spring design evolution has focused on increasing negative air chamber volume to improve small-bump sensitivity. A larger negative volume helps lower the initial spring rate, letting your suspension better absorb minor trail imperfections and improving overall sensitivity. However, the trade-off is that a larger negative chamber can reduce positive volume, making the fork progressively stiffer toward the end of the stroke and preventing you from using all your travel.
This is where the Noken shines. It allows you to enjoy the benefits of a larger negative air volume without the usual trade-offs. With the Noken, you can preserve small-bump compliance and mid-stroke support, while also regaining the travel that is typically lost due to the harsh, steep progression of some stock air springs.
The Noken is 10-13mm taller than standard damper control knobs, so it’s important to confirm downtube clearance before installation. We offer clearance guidelines and a 3D printable file on our website to help with this step. Additionally, you can use the new MRP Riser Crown Race to create the needed clearance, available in HighRise (+10mm) or LowRise (+5mm) options.
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Creates a more linear spring curve with a less dramatic spring rate change near bottom-out
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Increases the positive spring volume by 1.1 Bottomless Tokens (RS 38 model) or 1.5 volume spacers (Fox 38 model)
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Installs with a 32mm six-sided socket
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RockShox Zeb model compatible with all generations of Zeb (A1+)
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Fox 38 model compatible Factory, Performance Elite, and Performance models, including E-tuned versions
| Brand | Mountain Racing Products - MRP |
| SKU | MRP-702430223614 |
| Barcode | 702430223614 |
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