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'll use the Classified hub much more frequent than a normal front derailleur, this means that in practice you'll 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.

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

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).

None. The hub's internals are designed to be maintenance-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).

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. Furthermore, 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.

By offering 2 gears in combination with a regular derailleur setup, Classified 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.

Classified's goal is to optimize the drivetrain for performance. This means efficiency, durability and intuitive functionality. They see chain-based drivetrains as a solid platform to achieve this, but 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.

The gear ratio/set size of the Powershift hub (1:1 ratio in the virtual big gear, and 1:0.686 ratio in the virtual small gear) is also optimized for Powershifting.