Product Description

Project321 Microspline Driver Body $135.00

Project321 Driver Seal & Spring Kit

$19.00

  • For use with all of our magnetically actuated, 6 pawl, ratchet drive system only.  (will not work with I9 drivers).
  • Loud or Quiet Seals Kits available.
  • Only use Dumonde Tech Freehub Oil with our hubs.
  • Made in Bend, OR.
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Product Description

Project321 Driver Seals are made right in house at our Bend, OR location now.  By offering 2 different spring sizes depending on which pawls (Quiet or Loud) you have in your Project321 magnetically actuated driver we are able to give a custom fit to maximize oil retention and keep a drag as low as possible for each option.  With these seals you can have it all. 

Outstanding Customer Service. We pride ourselves on our knowledge and our availability. A real person still answers the phone and we have a team of knowledgeable sales and technical advisers available to help you over the phone or via email. Our response times are normally very fast, often same day and our shipping team works hard to get your product as quickly as possible (often same day).

Project321 Driver Seal & Spring Kit:

  • For use with our magnetically actuated, 6 pawl, ratchet drive system only.  (will not work in I9 hubs or with I9 drivers)
  • Kit comes with our PTFE Seal and either a 4.675″ Spring for Quiet Pawl Systems or a 5.375″ Spring for Loud Pawl Systems.
  • We recommend using only Dumonde Tech Freehub Oil in our drive system.
  • Made in Bend, OR.

Tech Links:

Additional Information

Weight .3125 lbs
Dimensions 6 x 6 x 6 in
Pawl Type

Loud, Quiet

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I have the G2 with a Torch freehub, am I able to use this seal with it?
No, this seal is only designed to fit with our magnetic drive system.
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Can I change my hub from a loud to a quiet system or vise versa?
Absolutely!  We offer both of the pawl types individually so you can switch back and forth as much as you’d like.  They can be purchased here.
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Can I change out my freehub body from an HG freehub body to an XD or vise versa?
Yes.  The change out is relatively simple and replacement parts can be purchased here.
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How do I service my hub, disassemble my hub to add oil to the freehub or perform some other maintenance?
Click here for a step by step video.
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Can I use grease inside of the freehub instead of oil when switching out the seals?
Never use grease in our freehub!*  We recommend using only Dumonde Tech Freehub Oil.  Grease inside of the freehub can lead to issues such as stuck pawls and increased drag.  *Use of grease in our freehub will void warranty.
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How do I replace my seal?
Click here for a step by step video.
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How is this product shipped?
We offer FREE SHIPPING (within the USA) on this product.
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Can I ship to a different address from my billing address?
Unfortunately, No. For security reasons Project321 will only ship to the billing address or address associated with the PayPal account used to purchase the item. PayPal does allow the addition of multiple addresses on an account.

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