DT Swiss 240 2020 + Front Black Centerlock Disc Hub
The DT Swiss 240 is the hub most of the pro peloton rides without knowing it, because the 240 lives inside so many branded wheelsets. Buy the 240 bare and lace it to a rim of your choosing and you get the same hub with none of the markup.
We build a lot of DT 240 wheels. Road, gravel, cross-country, trail; the 240 is the hub we suggest when a customer wants something light that will still be running smoothly in ten years. The 240 comes from the factory in Switzerland and Poland, and the tolerances show the moment you spin one in your hand.
Like every hub we sell, the 240 is only available here as part of a wheel we build. Pick the rim, spokes and nipples in the configurator and the 240 wheel ships from Georgia laced, tensioned and trued.
Design and construction
The 240 hubshell is machined to a lighter profile than the 350 and rides on sealed cartridge bearings with DT plug-in end caps, so one 240 converts between axle standards with a cap change.
Because the front 240 has no freehub, it is the hub that asks for the least: a spin of the axle to check the bearings once a season and nothing else. The flanges, bearings and seals are the same as the rear's, the axle converts between the front standards with end caps, and the rotor mounts the same way. Choose it to match a rear of the same model, or on its own for a fork that needs a new front wheel.
How it rides
The weight saving of a 240 over a 350 is roughly the difference between a good and a very good rim.
Front wheels on disc bikes take a beating from braking: the rotor side sees the whole braking torque and the spokes on that side run at higher tension. That is why we build the front 240 with the rotor-side spokes crossed and tensioned to the rim's limit, and why the hub's flange spacing matters more than its weight. Ridden on a rim-brake bike the same hub makes one of the lightest, simplest front wheels there is.
Specifications
| Position | Front |
|---|---|
| Axle options | QR 5x100mm Front, Thru Axle 12x100mm Front, Thru Axle 15x110mm Boost Front, Thru Axle 12x110mm Boost Front |
| Drillings | 24h, 28h, 32h |
| Spoke head | J-bend |
| Brake | centerlock disc |
| Left flange diameter | 44.4 mm |
| Right flange diameter | 44.4 mm |
| Spoke hole diameter | 2.5 mm |
| Weight | 154g |
| Material | Aluminum |
| Finishes | black |
This version
This version is the centerlock hub in QR 5x100mm NO 32 HOLE, Thru Axle 12x100mm, Thru Axle 15x110mm Boost, Thru Axle 12x110mm Boost, drilled for 24h, 28h, 32h, about 154g, in black. Those are the only things that differ between the versions of the 240; the shell, bearings and seals are the same.
This is the centerlock 240: the rotor sits on a spline and a lockring holds it, which saves weight over six bolts and makes swapping rotors a one-tool job. If your rotors are 6-bolt, a centerlock adapter fits them, or choose the 6-bolt version of the same hub.
Sizes, fit and compatibility
The DT Swiss 240 2020 + Front Black Centerlock Disc Hub is offered in the drillings listed on this page, with the axle and rotor options shown in the configurator: centerlock, 6-bolt or rim brake, in road, standard MTB and Boost spacing. The 240 takes J-bend spokes in any gauge we stock.
We pair the 240 with everything from DT RR and XM rims to ENVE, Reserve, HED, Nox and We Are One carbon. The configurator recommends a spoke count from your bike type and weight and only shows rims that match the drilling you choose.
Build it with us
We build this hub to order. Open the Custom Wheel Program with the DT Swiss 240 2020 + Front Black Centerlock Disc Hub already selected and pick the parts around it; it is offered for gravel and road disc, track and road single-speed, mountain bike, MTB single-speed and fat bike builds, and the configurator will not let you assemble a combination we would not build.
How DT Swiss tests its hubs
DT Swiss hubs pass through the same Performance Test Center in Biel as its rims. DT Swiss states that its laboratory tests replicate what products endure in the field over the whole product life cycle, under an internal factory standard that ensures compliance with ISO 4210. DT Swiss publishes no bearing-life, salt-spray or water-ingress figures.
DT Swiss fits industrial ball bearings to all its hubs and describes them as easy to replace. It recommends cleaning and re-greasing hubs every 12 months in normal use and every 3 months in extreme conditions (regular riding in dust, rain or snow, or frequent transport in the rain). The warranty is 24 months from purchase against material and manufacturing defects; ball bearings are wear parts and excluded.
DT Swiss's videos
From DT Swiss
Certifications
- ISO 4210 / ASTM F 2043 — DT Swiss states its internal factory standard 'ensures compliance with the current international standards (e.g. ISO 4210)' and sets test parameters by ASTM F 2043 riding conditions (self-declared, no certificate published) (source)
- Warranty — 24 months legal warranty against material and manufacturing defects; ball bearings are wear parts and excluded (source)
- Service interval — Clean and re-grease every 12 months (normal use) or every 3 months (extreme conditions) (source)
Sources on DT Swiss's site:
- Performance test center | DT Swiss
- Ratchet EXP maintenance notice | DT Swiss
- FAQ | DT Swiss
- Warranty & Fair-Share | DT Swiss
- Ratchet EXP | DT Swiss
DT Swiss publishes those results; ProWheelBuilder builds the hub into a wheel and does not test it in a lab.
Building it at ProWheelBuilder
DT manufactures the 240; ProWheelBuilder is an independent wheel builder in Georgia and not the manufacturer. Every DT 240 wheel we build is laced by hand, brought up in stages with a tensiometer, stress-relieved and trued before it ships, with spokes cut from the measured ERD of the rim rather than a catalog number.
The configurator prices the wheel live, strikes through combinations that are not made, and shows the estimated ship date before checkout.
Warranty
DT Swiss's warranty. DT Swiss covers its products against material and manufacturing defects for 24 months from purchase, excluding wear parts such as bearings and tubeless tape. Carbon rims and carbon wheels bought new since 1 January 2020 carry an extended guarantee to the first owner against defects in material and workmanship, and DT Swiss runs a paid crash-replacement scheme on carbon wheels for up to ten years from purchase.
ProWheelBuilder. Lace this into a wheel here and the finished wheel gets our own one-year warranty as well as the maker's. For twelve months we replace broken spokes however they broke, and the work on the wheel is on us - truing, re-tensioning, a rebuild where it is needed. If the rim or hub is covered by its manufacturer we put the claim in and chase it; if it is not, we supply an eligible replacement rim or hub at 25% off the current retail price. Carriage both ways is the customer's, and this does not cover wheels built from parts you send in.
Full terms are on our Policies & Warranty page.
240 2020 + Front Black Centerlock Disc Hub questions
Will my rotors fit this hub?
This is the centerlock version, so a splined centerlock rotor drops on and a lockring holds it - one tool, no six bolts to torque or lose. If your rotors are 6-bolt they will fit with a centerlock adapter, or take the 6-bolt version of the same hub, which is a separate listing.
Is the 240 worth it over the 350?
If weight matters and the budget allows, yes; the internals are the same but the 240 shell and axle are lighter. If you would rather spend the difference on a better rim, the 350 is the smart choice.
Is ProWheelBuilder the manufacturer of the DT Swiss 240 2020 + Front Black Centerlock Disc Hub?
We are not. DT Swiss manufactures the hub; ProWheelBuilder's part is the wheel: measuring, lacing, tensioning and truing it here in Georgia.
Which axle spacing does it fit?
QR 5x100mm Front or Thru Axle 12x100mm Front or Thru Axle 15x110mm Boost Front or Thru Axle 12x110mm Boost Front. Measure between the inside faces of your dropouts if you are unsure, or text us.
Does it need special spokes?
No. It takes standard J-bend spokes, which the configurator offers in every gauge and finish we stock.
How long will the wheel take?
Build time comes down to parts availability rather than bench time. The estimated ship date is shown in the configurator before you check out.
Not sure? Text or leave a voicemail on 470-253-0929 or email info@prowheelbuilder.com — you will be talking to the people who build the wheels.
