DT Swiss has introduced a new version of the classic 350 Hub alongside a new ratchet upgrade system to convert their three-pawl hub systems to DT’s Ratchet LN design. That Ratchet LN design is now found on DT's 370 hubs, rather than the three pawl configuration that was used before.
DT Swiss also released a limited-edition Oil Slick 240 Hub last month, with 1,000 individual hubs distributed worldwide.The New 350 Hubs
The updated 350 Hubs use the mid-level Ratchet system, which sits between the Ratchet LN and the high-end Ratchet EXP. The hubs are available for all the major axle and freehub specs and come in 28h and 32h configurations. Although they come standard with 36t ratchets, DT Swiss offers ratchet options from 18t to 54t, with engagement angles ranging from 20 to 6.7 degrees.
One feature that stands out is the tool-free design for maintenance and part swapping. Each hub end cap has a notch that allows it to easily be removed to access the internals, whether for routine maintenance, swapping out the ratchets for a different number of engagement points, or changing freehub bodies between the available SRAM XD, standard Shimano, and Shimano MicroSpline options.
Pricing starts at $101.90 (front) and $272.90 (rear) USD.Ratchet System Upgrade
DT Swiss’ Ratchet system distributes force over a larger area than the traditional three-pawl system, making the hubs more reliable, DT says. Rather than engaging in just three points at the pawls, the ratchet teeth all engage simultaneously for even load distribution.
The conversion kit includes all the necessary parts: two 18t ratchets, a threaded ring, springs, a shim ring, a spacer, and a SRAM XD, standard Shimano, or Shimano MicroSpline freehub body.
DT Swiss also offers 24t, 36t, and 54t upgrades for the conversion kit. Pricing ranges from $96.60 to $130.90 USD.240 Oil Slick Limited
For those who want bling with their ratchet system, DT Swiss has a shiny, lightweight option if folks can get their hands on it.
The top-of-the-line 240 Oil Slick Hubs sport all the ratchet features mentioned above, such as tool-free serviceability, with the lighter Ratchet EXP freehub system. Unlike the Ratchet LN and Ratchet designs, which use two conical springs to press the ratchets together, the Ratchet EXP saves weight by using only one spring and integrating the inner ratchet with a threaded ring that is typically a separate part. The streamlined system also hides the drive-side bearing inside that same threaded ring, allowing for a claimed 15% increase in axle stiffness, thanks to an increase in the distance between the bearings.
The hubs are available through DT Swiss dealers, starting at $235.90 (front) and $476.90 (rear) USD.
Nice to have a kit but why not offer it with 54T directly and the 2 nuts for the star and pawl ring are still extra. Ordering from China is another adventure- I waited 4 weeks just to find that I got the star nut twice.
Erase hubs work on a similar style of ratchet engagement, but come with larger 60T ratchets from stock. Made of titanium. They also have angular contact bearings, and are extremely light, partly due to the titanium freehub. Cost is also very reasonable.
related, I have like a dozen or more of the little DT grease canisters from doing upgrades for people. theres about 45 years worth of grease in each one. LOL
furtherly, if your shock or fork manufacturer are still spec'ing non-slide oils, feel free to match up the viscosity with a top spec slide oil and use that. it will work better, gauranteed.
I've had problems though - 1 sprag clutch lunched itself and I've had 2 through-axles snap, this is in 2 years of use. They've just changed the axle design to not be threaded so I (hopefully) won't get the problem again. Oh, and they weigh a lot. My classic rear weighs more than my friends I9 front and rear hubs combined.
Customer service from them is top notch though, cannot fault them on that front.
Me running Cushcore affects the rotational weight of the wheel, which is what you're talking about.
I've accepted I kill tyres no matter what casing they have so have started running Exo+ or GRID or equivalent because it's nice to have less rotational weight, and I'm going to kill it anyway, despite the Cushcore.
@conoat I saw that video too, not sure exactly where he put them on the chainstays though. If they were near the pivot, it won't make much difference, if they were at the rear wheel it would. Maybe he noticed zero difference in stability of the bike, but (again, dependent on bottle location) he'd have noticed a difference in suspension performance, but it might not have a negative impact on the way the bike felt. He was looking for TIME in his sessions rather than specifically for it to 'feel nice'.
Magic marry snakeskin 2.6 soft + big betty soft sg 2.4. Set weight is around 4.4-4.5kg but i'm a heavy guy, because of that i chose heavy wheels so that they last
Is the new 350ln hub the same setup as the previous version just with 36t star ratchets standard now?
This never happened with the 240s and 350 style of 2 spring ratchets. Hoping that the 350 is still the unchanged version and not the reportedly troublesome 240exp style.
Rumor is it's a tolerance issue on the first batch but that rumor has never been confirmed by DT. They have a "fix" but are not saying what it is. If it is/was a manufacturing tolerance issue then I would be looking at the oil slick hubs right now as that is easily fixable. But with no confirmation well.....
Best case you swear at your pos hub and have no confidence that it will work next time. Worst case, you end up with a concussion and dental surgery. Hey DTSwiss, own up to your issue and fix it!!!
Please someone enlighten me why DT Swiss is so "good".
2. More importantly, the Ratchet LN has a seal built into the freehub body, whereas the standard and fancy Ratchets rely on a seal built into the hub shell. Essentially this change is so that the Ratchet LN freehub body with a seal can better replace the pawled design (which also has a seal on the freehub body). Conversions up until now have worked okay but have lacked that seal, so this aims to address that.
3. Yep, the Ratchet LN is the entry-level / least sophisticated one, so it comes with the lowest tooth count.
Before upgrading to the new EXP system from DtSwiss, you should read this thread about an engagement problem with this new system that is unclear if it solved or not:
I just ordered a custom wheelset to be built with dt swiss 350 hubs. Do I want these new versions or the old ones? Someone please think for me.
Take a rear hub for example, a Hope 4 is $200 cheaper, an I9 Hydra is 100g lighter with 2x the engagement (though same price) and a DT 350 is 100g lighter and $200 cheaper (approximate prices and weights from Wheelbuilder).
Is Chris King durability still that much better than DT Swiss, Hope or Industry 9? I'm pretty famous for destroying bike parts, but have never had issues with Hope or DT Swiss hubs (haven't tried I9s but I've heard nothing but great things).
While I lusted over them in the past, It just feels like Chris Kings are a little lacking compared to their competitors these days, when everyone else is innovating around price, engagement, weight etc.
See the comment from the DT Swiss account on their official YouTube video here:
I would change the bearings and ultimately rode the 1200s into the ground. Can't complain about a 1400g wheelset failing after 2 years of relentless racing and thrashing - even though the way the rim failed was not my fault - it was cracked along the spoke bed and nipple heads, no impact damage.
I know the spline flanges are tiny and there is not an awful lot of space for the bearings. But it's still annoying and embarassing to acknowledge that my $2k wheelset eats its bearings faster than the cheapest Formula or Novatec hub, let alone Shimano.
Step 2: have friends who own a bike shop.
DT Swiss: Denied, that will be an extra 100 bucks.
The kit comes with two ratchet rings that should cover most of the 370 hubs. I don't have pricing but I imagine it could be costly since you'll need a freehub body as well as the kit. BTW we are only receiving these kits in July
this diagram clearly shows the new kits include the freehub body. sheesh.
Or he's just mad.