FAQ

Compatibility

Are Classified wheelsets and POWERSHIFT hubs compatible with any frame?

Our POWERSHIFT system can be installed on every frame provided it has the following specifications:

  • Rear hub width of 142mm. Front hub width of 100mm.
  • Flatmount of disc brakes of 140 or 160mm.

No adjustment to your frame or dropout is needed to install a Classified wheel or POWERSHIFT system on your bike.

Do I need a specific casette?

Yes, Classified uses a proprietary cassette for increased durability and lighter weight. We offer several options so you can optimise your drive train to suit your riding style.

Which chains are compatible with the Classified cassette?

Classified 11 speed cassettes are designed to operate with Shimano CN-HG601-11, CN-HG701-11 and CN-HG901-11 11-speed chains. Alternatively KMC X11 and DLC11 chains are also compatible.

Classified 12 speed cassettes are designed to operate with all SRAM 12 speed compatible chains.

The hubshell is interchangeable, is it easy to change?

Yes. There's a lockring under the brake disc that keeps the hubshell attached to the inner hub and driver assembly. This lockring is compatible with your standard cassette lockring tool and a hub swap can be done in as little as a few minutes. Please consult the manual for a detailed hub swap procedure.

What disc brakes are compatible?

Centre Lock disc brakes only.

Can I fit the transmitter module in any handlebar?

No. The transmitter module is only compatible with Shimano Di2-spec handlebars with a hole for the wiring positioned near the end of the handlebar.

These are handlebars such as Pro Vibe alloy and Pro Vibe carbon.

Do not drill holes in your handlebars. This will void the warranty and can lead to injury or death.

What do I need to keep in mind when buying a new bike on which I want to install Classified wheelsets?

The frame of your new bike should have the following specifications:

  • Rear hub width of 142mm. Front hub width of 100mm.
  • Flatmount disc brakes of 140 or 160mm.
  • 1X chainring upfront

When choosing the groupset to combine with a Classified POWERSHIFT hub, keep in mind that Classified cassettes are compatible with 11 or 12 speed rear derailleurs of Shimano or SRAM, preferably with clutch. Make sure the maximum sprocket capacity of your rear derailleur fits the chosen Classified cassette. By making use of a separate shift button, both mechanical and electronical rear derailleurs are compatible with a Classified cassette.

Which rear derailleurs are compatible with Classified cassettes?

Classified cassettes are compatible with 11 or 12 speed rear derailleurs of Shimano or SRAM, preferably with clutch. Make sure the maximum sprocket capacity of your rear derailleur fits the chosen Classified cassette. By making use of a separate shift button, both mechanical and electronical rear derailleurs are compatible with a Classified cassette.

Can I use my own thru-axle with the Classified hub?

No. The Classified hub can only be used with the Classified thru-axle. Using any other thru-axle will impair functionality and voids warranty.

The reason is two-fold. First the Classified thru-axle contains the battery and electronics to power the Classified hub. Without it, the hub is not able to shift. Secondly, the Classified Thru-Axle secures the Classified hub's axle to the frame to enable it to support the torque load, which is required for proper functionality and is fundamentally different to regular hubs.

Wireless

Do I need to pair my hub and thru-axle everytime I take out and reinstall my rear wheel or change to another Classified hub?

No. Pairing is only done between the handlebar unit and thru-axle. If you swap a Classified hub with another Classified hub, the pairing is not impaired. In other words: after a wheel-change you can set off immediately.

Can I pair my Classified hub to my ANT + cycling computer?

Yes, you can use through ANT+ to display the Classified hub gear-status on any/most ANT+ computers. For pairing, refer to the instructions of the ANT+ computer.

General

Why does it only have two gears?

By offering 2 gears in combination with a regular derailleur setup, we can offer both a wide range and small gear steps just like you're used to. But by removing the front derailleur you get the dependability and performance you've always wanted.

Our goal is to optimise the drivetrain for performance. This means efficiency, durability and intuitive functionality. We see chain-based drivetrains as a solid platform to achieve this, but we want to remove its weakest link, the front derailleur, as it lacks dependability. Classified offers a wide gear range combined with small gear steps, which was only possible previously using a front derailleur. This is why the Classified hub is operated just like a regular 2x-setup.

Can I use sattelite buttons to shift the Classified hub?

Yes, a satellite shift button is included when buying a Classified wheelset.

How do I check my battery status?

Both the handlebar unit and thru-axle have an LED that will light up upon shifting. The LED colour lets you know the charge state of the batteries. Additionally, you can verify the charge state by pressing the status-button on the handlebar transmitter or the thru-axle.

Will I need to replace batteries?

The battery in the Thru-axle is rechargeable. A fully charged battery will give you 3 to 6 months of use between charges.

The transmitter module in the handlebar has a coin cell (CR1632) and will last at least one full year before needing replacement. Replacing this battery is possible without having to remove your handlebar tape.

If I want to service the bearing in the hub or driver, what do I have to do?

If you experience play on your Classified hub, contact us and we will get you back on your bike as soon as possible (see service & warranty terms).

Where can I get service/spare parts?

We want you to ride hassle-free. If for any reason you think your Classified product isn't performing as it did when it was new, contact us and we will get you back on two wheels as soon as possible.

Can I buy a second wheelset compatible with Classified?

Yes, seperate hubshells will soon be available through our webshop. A matching front hub will also be offered so you can select your own rims and create a complete wheelset to complement your Classified-optimised ride.

What maintenance is required?

None. The hub's internals are desiged to be maintainance-free.

Wheel bearings are, however, subject to wear as with any other hub, and can be replaced. If you experience play on your Classified hub, contact us and we will get you back on your bike as soon as possible (see service & warranty terms).

Can I also use standard wheels/hubs on my bike if I use a Classified hub?

Yes, you will need to replace the torque insert on the left dropout with a conventional insert, which is supplied with the bike.

What size chainring do I need?

Classified hubs are optimised for chainrings from 40T to 54T.

Classified is designed to be flexible, so you can tailor it to your own needs. As a general guide, we suggest you choose a chainring similar to your current big ring for the same size cassette.

Please observe compatibility with your crank and also check for the required clearances for the chain and chainrings for your frame manufacturer.

Can I combine it with a Powermeter?

Yes, Classified can be combined with any crank or pedal based powermeters that fit your frame.

How do I clean it?

You can use your normal bike-cleaning-routine, using mild detergents and a gentle hose down.

As for all bike equipement, we strongly recommend that you do not use any high-pressure or steam cleaning machines such as pressure washers.

What is the durability?

The Classified hub has an operational lifespan exceeding the lifespan of a bicycle’s internal systems, and it requires no maintainance.

Bearings are subject to normal wear and can be replaced.

If for any reason you think your Classified product isn't performing as it did when it was new, contact us and we will get you back on two wheels as soon as possible. (See service & spare parts).

Why is Classified better than a front derailleur?

Classified hubs replace the functionality of a front-derailleur, hence it's ratio is similar. Combined with our cassette options you can have both a wide range and small gear steps, while also retaining the big-step or bail-out functionality that you would have with a front-derailleur setup. At the same time it does away with chain deraillement typically associated with front derailleurs and thus provides more reliable, consistent and faster shifting under pedaling loads regardless of the circumstances you are in.

What does it weigh?

Unlike most geared hubs, no weight is added to the bike. A Classified equipped bike is equally light or lighter than a bike with a traditional 2x electronic groupset equipped bike and traditional reference hub (eg. DT Swiss 350). To be more concrete, a bike equiped with Classified and 1x GRX Di2 weighs the same (+-10g) as a bike with a traditional 2x11 GRX Di2 groupset and a DT Swiss 350 hub. The bike setup used by our initial partner: Classified in combination with a Rotor Aldhu 1x crank, is up to 70g lighter than the same bike with a traditional 2x11 GRX Di2 groupset and a DT Swiss 350 hub. In short we can state that the weight of the replaced components (front derailleur, small chainring, traditional hub, thru axle and cassette) is approximately the same as the weight of the components offered by Classified.

What is the lifespan of your cassettes?

Classified cassettes are machined from solid blocks of high grade tool hardened Chromoly-steel. This enables us to create lightweight cassettes with very high durability. Using a high-grade chain (see chain-compatibility section) will ensure you many kilometres of hard use.

How quick does it shift?

Classified shifts faster than anything on the market. The hub will shift within 0,15 seconds.

Can I shift under load?

Yes, Classified is unique as it can shift under load. You do not have to hold back, or stop pedaling to shift. It is designed to shift even under loads of up to 1000 watts. Futhermore, you can shift while coasting (and back pedaling). And even when standing still - the hub will complete the shift as soon as you start rolling. This all means faster, trouble-free shifting each time, over and over again.

Can I buy the Classified hub aftermarket?

Classified is currently only available through bicycle OEMS.

Can I change my crank or chainring?

Yes, any 1x-specific crank that fits your frame is suitable to be used with Classified components. Minimum 40T chainring is required for Classified hubs. Always observe clearances for chain, chainring and frame parts as recommended by your frame supplier.

Can I use it for bikepacking?

Yes! Classified hubs can be a great asset when climbing those steep hills with your bike fully loaded. If you're planning to ride for more than 3 months without going home, be sure to pack a micro USB charging cable so you can charge the Classified Thru Axle while sheltering from rain or checking in with your loved ones back home. You can be back on the road within an hour.

Technical

Can I use it for bikepacking?

Yes! Classified hubs can be a great asset when climbing those steep hills with your bike fully loaded. If you're planning to ride for more than 3 months without going home, be sure to pack a micro USB charging cable so you can charge the Classified Thru Axle while sheltering from rain or checking in with your loved ones back home. You can be back on the road within an hour.

Do I need a specific cassette?

Yes, Classified uses a proprietary cassette for increased durability and lighter weight. We offer several options so you can optimise your drive train to suit your riding style.

Why does it only have two gears?

By offering 2 gears in combination with a regular derailleur setup, we can offer both a wide range and small gear steps just like you're used to. But by removing the front derailleur you get the dependability and performance you've always wanted.

Our goal is to optimise the drivetrain for performance. This means efficiency, durability and intuitive functionality. We see chain-based drivetrains as a solid platform to achieve this, but we want to remove its weakest link, the front derailleur, as it lacks dependability. Classified offers a wide gear range combined with small gear steps, which was only possible previously using a front derailleur. This is why the Classified hub is operated just like a regular 2x-setup.

How quick does it shift?

Classified shifts faster than anything on the market.

The hub will shift within 0,15 seconds.

If I want to service the bearing in the hub or driver, what do I have to do?

If you experience play on your Classified hub, contact us and we will get you back on your bike as soon as possible (see service & warranty terms).

How efficient is the hub?

Very efficient! More efficient than a 1x and 2x setup. Compared to a 1x, less cross chaining is required, sprocket and chainring sizes are larger and thus chain tension, crank and hub bearing losses are lower. Compared to a 2x; the fact that the 0.7 ratio of the hub still uses the large chainring in front, results in 30% less chain tension and thus lower chain, crank and hub bearing losses. On top of this you will experience that you will use the Classified hub much more frequent than a normal front derailleur, this means that in practice you will have less cross chain losses. The hub does not have any additional losses on in the 1:1 ratio, and is designed to have extremely low losses in the 0.7 ratio which are completely balanced out by the big chainring and straighter chainline by using a Classified setup.

What is the durability?

The Classified hub has an operational lifespan exceeding the lifespan of a bicycle’s internal systems, and it requires no maintainance.

Bearings are subject to normal wear and can be replaced.

If for any reason you think your Classified product isn't performing as it did when it was new, contact us and we will get you back on two wheels as soon as possible. (See service & spare parts)

What does it weigh?

Unlike most geared hubs, no weight is added to the bike. A Classified equipped bike is equally light or lighter than a bike with a traditional 2x electronic groupset equipped bike and traditional reference hub (eg. DT Swiss 350). To be more concrete, a bike equiped with Classified and 1x GRX Di2 weighs the same (+-10g) as a bike with a traditional 2x11 GRX Di2 groupset and a DT Swiss 350 hub. The bike setup used by our initial partner: Classified in combination with a Rotor Aldhu 1x crank, is up to 70g lighter than the same bike with a traditional 2x11 GRX Di2 groupset and a DT Swiss 350 hub. In short we can state that the weight of the replaced components (front derailleur, small chainring, traditional hub, thru axle and cassette) is approximately the same as the weight of the components offered by Classified.

What is the lifespan of your cassettes?

Classified cassettes are machined from solid blocks of high grade tool hardened Chromoly-steel. This enables us to create lightweight cassettes with very high durability. Using a high-grade chain (see chain-compatibility section) will ensure you many kilometres of hard use.

Can I shift under load?

Yes, Classified is unique as it can shift under load. You do not have to hold back, or stop pedaling to shift. It is designed to shift even under loads of up to 1000 watts. Futhermore, you can shift while coasting (and back pedaling). And even when standing still - the hub will complete the shift as soon as you start rolling. This all means faster, trouble-free shifting each time, over and over again.

Wheels and hubs are interchangeable, are they easy to change?

Yes, there is a lock ring under the disc brake that keeps the wheel attached to the hub. This lock ring is compatible with a cassette lock ring tool. The hub and/or wheel can be swapped in as little as a few minutes. Please consult the manual for a detailed description of a hub swap procedure.

Aren't internal gears for city bikes?

No, when designed properly, they can be highly efficient. We used our background in automotive transmission development to optimise tooth geometry, material selection and production methods with high performance, low weight and durability as the key design goals. On every aspect, we've gone the distance, as we know they all add up to make a huge difference. Our gearing is unlike any other on the market, you cannot feel it. Which is exactly what you want.

What is the gear ratio?

The ratio is similar to what you'd find on a 2x-setup. The ratio is roughly equivalent to 53/36, 50/34 or 48/33 chainrings.

The hub has two speeds. In Direct Drive it is 1:1; meaning the cassette and hub have the same speed. In Under Drive it has a ratio of 0,686, which means that for each revolution on the cassette, the wheel rotates 0,686 revolutions. We call this 0.7. Under Drive effectively replaces the smaller chainring on a regular 2x-crankset.

Service

If I want to service the bearing in the hub or driver, what do I have to do?

If you experience play on your Classified hub, contact us and we will get you back on your bike as soon as possible (see service & warranty terms).

Will I need to replace batteries?

The battery in the Thru-axle is rechargeable. A fully charged battery will give you 3 to 6 months of use between charges.|

The transmitter module in the handlebar has a coin cell (CR1632) and will last at least one full year before needing replacement. Replacing this battery is possible without having to remove your handlebar tape.

What maintenance is required?

None. The hub's internals are desiged to be maintainance-free.

Wheel bearings are, however, subject to wear as with any other hub, and can be replaced. If you experience play on your Classified hub, contact us and we will get you back on your bike as soon as possible (see service & warranty terms).

What is the durability?

The Classified hub has an operational lifespan exceeding the lifespan of a bicycle’s internal systems, and it requires no maintainance.

Bearings are subject to normal wear and can be replaced.

If for any reason you think your Classified product isn't performing as it did when it was new, contact us and we will get you back on two wheels as soon as possible. (See service & spare parts)

Do you have questions?

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