Project 321 DH Rear Hub 32H

  • Sale
  • Regular price $730.00
  • Tax included.


  • Weight 291.4g
  • Fully customizable drive system with multiple options:
    • 6×2 (6 pawls with 2 pawl engagement) driver that yields 1.7° (216 POE) engagement or our 6×3 (6 pawls with 3 pawl engagement) option that yields 2.5° (144 POE) engagement
    • Quiet or loud pawls.
    • XD or HG driver.
  • Very low drag freehub. Our new drive system with quiet pawls produces 68% less drag than the system we previously used. Our loud pawls produce 51% less.
  • Machined pockets in the drive chamber allow for 25x more oil than our competitors’ hubs – more oil dampens sound slightly but it also extends time between service intervals.
  • Fine pitch bearing preload adjustment allows for zero play and compensation for bearing wear.
  • Better flange angles eliminate (or drastically reduce) spoke contact with flange,  reduce lateral flange loading and create a stiffer and longer lasting wheel build.
  • Industry leading warranty: 10 years on hub shell and axle, 3 years on pawls, drive ring, and driver body.

If bombing downhill is your thing, then we’ve got the hub for you!  Our DH Rear Hub takes notes from our lauded G2 Hub but comes in a bigger package to fit your DH bike.  With both 150mm and 157mm spacing options this hub is sure to fit your rig.  You still get all of our signature features such as our revolutionary drive system, high capacity oil chamber, angled flanges, brilliant finishing, tension-able axle, and high quality bearings.  We also know what matters to you DH guys so you’ll be happy to know that this hub has long maintenance intervals thanks to the large oil chamber and ultra low drag due to our new drive system (even with our super quick engagement).  And if all of that wasn’t already enough then we’ve also refined our flange design to give you the strongest wheel build possible!  Quite simply, there is no other hub quite like this one!

Product Highlights

Patent pending drive mechanism. All Project321 rear hubs are now equipped with our new magnetically actuated, 6 pawl, ratchet drive system. This new system gives you a combination of options and features like no other drive system on the market. Click here (link to drive page) to read more about this innovative drive system!

Thoughtfully angled flanges. This is a big one folks. We are the only manufacturer on the market to create a little to no-touch environment that allows the spokes to touch the hub only at the bend and nowhere else. This creates a more stable and true wheel and eliminates any unnecessary stress on the spokes. We have achieved this by matching the angle of the flanges to the average bracing angle of the spokes and remove any interference.  On many of our competitors’ hubs the flanges are vertical or near vertical causing the outside spokes to make heavy contact with the flange creating a stress riser and reducing the strength and stiffness of the wheel. You can read more about this here. LINK

Formed rotor bolt threads. Rotor bolt holes are formed which creates a much stronger thread than the more common method of cut tapping.

Easy to maintain.  There are no special tools required to perform any maintenance, just a basic set of bicycle tools will do.

Machined logo. Hubs also feature a unique CNC machined logo versus a lasered or stickered logo.

Industry leading warranty. 10 years on hub shell and axle, 3 years on pawls, drive ring, and driver body.

Rigid Quality Control. This is something we take VERY seriously. You will not receive a hub with a scratch or ding. We believe it is your job to try and tear this baby up, not ours. We also maintain tight controls on anodizing to provide consistent colors and use an extra long seal to preserve color. Unfortunately, fading is part of the nature of the anodizing process, but the extra long seal helps maintain the original brilliance as long as possible.

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).

  • Weight 291.4g
  • Axle options in 150×12 and 157×12.
  • Utilizes our new patent-pending magnetically actuated, 6 pawl drive system.
    • Available with a 6×2 (6 pawls with 2 pawl engagement) driver that yields 1.7° (216 POE) or a 6×3 (6 pawls with 3 pawl engagement) driver that yields 2.5° (144 POE). (6×3 system only recommended for tandems, e-bikes, and riders over 275lbs).
    • Both options available with either quiet or loud pawls.
    • XD and HG driver bodies available.
  • CNC engraved logo (not laser etch or sticker).
  • Industry leading warranty: 10 years on hub shell and axle, 3 years on pawls, drive ring, and driver body.
  • Made in USA.
  • Comes standard with 5 High Precision Japanese Cartridge bearings.
    • Upgrade to Kogel Ceramic bearings for $185.90.
  • Better flange angles eliminate (or drastically reduce) spoke contact with flange,  reduce lateral flange loading and create a stiffer and longer lasting wheel build.
  • Bearing preload adjustment that can be accurately loaded to adjust bearing preload for zero play and to compensate for bearing wear.
  • We recommend using only Dumonde Tech Freehub Oil in our drive system.
  • Lightly polished before ano to retain a machined look.  Not over polished.
  • 32 hole options available.
  • Available in all 10 color options with long lasting anodization