DT Swiss has unveiled a simple Ratchet LN upgrade kit that will bring your low-cost DT wheels up to Star Ratchet high-performance. The kit includes all the parts needed to swap out the 3-pawl engagement of entry-level DT hubs, and replace it with their signature Ratchet engagement.

DT Swiss Ratchet LN hub upgrade kit: from pawls to Star Ratchet

DT Swiss Ratchet LN hub upgrade kit, from 3-pawls to Star Ratchet, insides

Long a secret upgrade carried out in the darkness of YouTube, converting a lower-cost DT 360/370 series hub with a 3-pawl freehub to DT Swiss’ signature Star Ratchet is a relatively straightforward process. The trouble had really always just been getting ahold of the right spare parts, and access to DT’s two hub-specific tools. Now, the parts discussion just got easier. And you can drop your wheels & kit in at your local bike shop or custom wheel builder for the simple upgrade.

How & why to upgrade? Tech details

DT Swiss Ratchet LN hub upgrade kit, from 3-pawls to Star Ratchet, old hube internals

entry-level 3-pawl hub internals (threaded Ring Nut in red)

Even DT’s lower-spec’d 3-pawl hubs on many affordable OEM wheels thread their Ring Nut (the teeth the pawls engage) into the hub shell just like their premium hubs. So, swapping that out with a Ring Nut that allows the spring-loaded Star Ratchet system to engage & disengage means you get faster performance & improved durability.

DT Swiss Ratchet LN hub upgrade kit, from 3-pawls to Star Ratchet, engagement comparison

3-pawl engagement (left) vs. Star Ratchet engagement (right)

While tons of hubs work fine with pawl engagement and only 3 points of contact to transfer pedaling torque from the freehub into the wheel itself via the hub shell, the Star Ratchet system fully engages the entire surface area of the ratchets and their teeth with every pedal stroke forward. That means better distribution of force, and ultimately increased reliability. It also makes further upgrading engagement possible.

DT Swiss Ratchet LN hub upgrade kit, from 3-pawls to Star Ratchet, components

The DT Swiss Ratchet LN upgrade kit comes standard with an 18T pair of ratchet rings, but since it uses the long-established Star Ratchet system, you could even upgrade it further to 24, 26, or even 54 tooth ratchets for even quicker freehub engagement.

DT Swiss Ratchet LN hub upgrade – Pricing, options & availability

DT Swiss Ratchet LN hub upgrade kit, from 3-pawls to Star Ratchet, kit contents

The Ratchet LN kit includes all the parts needed for hub upgrade: the new threaded Ring Nut, a pair of ratchets with 18 teeth, springs, shim ring, spacer, grease, and the freehub body of your choice – standard Shimano, SRAM XD, or Shimano Micro Spline. To carry out the conversion you will need both DT-specific ring nut removal tools.

The kit with the standard alloy Shimano freehub is the cheapest upgrade at $92 / 70€, or a bit more with alloy XD or MicroSpline bodies at $105 / 80€. Kits with heavy-duty stainless steel freehub bodies are also available for $26 / 20€ extra. Get them not from any DT Swiss bike shop or wheelbuilder near you.

DTSwiss.com

14 comments

  1. K-Pop is dangerous to your health on

    If you attempt this conversion be prepared for a full 5 round Championship main event MMA fight trying to remove the old ring nut. Sometimes they’re easy, 1st round knockout. Sometimes it’s a grinder with a Brazilian Jiu Jitsu master. 300lb minimum weight workbench, heat gun, steak and egg breakfast, breaker bar, and somebody to hold the bench from spinning.

    Reply
    • Thesteve4761 on

      You’re severely over stating things. I’ve removed dozens. Never once needed heat or impact. Two people, at most, and a sturdy workbench and vise.

      It’s no different than removing an old freewheel.

      Reply
      • Shafty on

        Okay Mr. Expert, clearly you haven’t had a real stuck one. Most are easy-ish, but I’ve had a few that were so tight, any more force would damage the wheel/rim. In those cases, you must remove the DS bearing through the ring. Sometimes it kills the new bearing though. Maybe a powerful impact gun would do it, but I haven’t gone to that length.

        Reply
      • K-Pop is dangerous to your health on

        Steve, if you’ve never come across a stuck ring nut (DT or otherwise) in all your professional career, you’re either extremely lucky, or simply don’t have enough experience.

        And never ever use and impact gun doing this. You run the risk of cracking the hub shell. A magnifying glass will reveal that.

        Reply
    • PhatWrapperSlim on

      Just curious. Has anyone ever tried a six foot breaker bar? We’ve struggled with these in the past, then one day I just applied some logic and thought lets increase the leverage ratio. Two guys held the wheel upright, I used a six foot pipe on a crescent wrench, turned out easy. Maybe you all have tried this before and maybe I just got lucky. But if not, I suggest giving this a try next time.

      Reply
    • BubbRubb on

      They are cheap, and readily available and if a shop doesn’t have a DT splined tool for the hub service, you don’t want to use this shop for service. Period. The tools have been out for over a decade.

      Reply
  2. Adam on

    This has been possible for several years. Funny that they finally figured out how to sell it… maybe. Any chance they figured out how to go up in engagement. 6.7 deg is pretty good especially when you get 3 fully seasons on a set of bearings. I don’t mind doing bearings once a winter for better engagement in techy rocks.

    Reply
  3. Thesteve4761 on

    Thus eliminating any reason to buy any of their nicer hubs. Funny how they denied that this conversion worked for years, then do this. So wait, if we believed you then, what’s that mean about what you’re saying now???

    Ratchet Exp- Harder to work on. Less field serviceable. More expensive.

    Ratchet LN- the new 240/350.

    Reply
    • Shafty on

      It doesn’t eliminate reason to buy the nicer hubs, because most users of all bike parts use the stock components. This doesn’t hurt 240 sales, since the upgrade transforms a pawl type hub to a ratchet type–it’s a different customer altogether. No one buys those with the intent to convert them to a 350-ish hub, it’s just what came on their bike.

      Also, it’s important to note that the frehub seal is part of the *freehub* with pawl hubs, so converting previously meant you’d lose freehub sealing since the 350/240 seal wasn’t compatible with the hub shell.

      Reply

COMMENT HERE: (For best results, log in through Wordpress or your social media account. Anonymous/fake email comments may be unapproved or deleted. ALL first-time commenter's posts are held for moderation. Check our Comment Policy for full details.)

This site uses Akismet to reduce spam. Learn how your comment data is processed.