RATCHET EXP technology

Simple maintenance

The no-tool concept allows the tool-free disassembly. Featuring an incorporated notch, the newly developed shape of the endcaps simplifies disassembly significantly and therefore makes the maintenance even easier.

Freehub Body Conversion

The no-tool concept allows the conversion to a different drive train standard within seconds. All DT Swiss Ratchet System hubs can be converted.

Less weight

The previous Ratchet System required two springs to function correctly as the inboard ratchet was not fixed to the hubshell. The fusion of the ratchet and the threaded ring in the Ratchet EXP hub not only increase durability, it also reduces the overall number of components, utilizing a single spring, resulting in a decrease in weight of the freehub system.

More Precision

The previous systems required two conical springs which ensured the correct angle between the two ratchets. The fixed connection between the inner ratchet and the hub shell of the RATCHET EXP ensures that the inner ratchet is always aligned at the correct angle. Allowing the use of a single cylindrical spring resulting in a faster full engagement and therefore an increase in reliability.

Superior Reliability

What makes the Ratchet System hubs superior is the fact that all teeth on each of the ratchets engage simultaneously every time. In the case of pawl hubs, the engagement surface area is rather small. With the Ratchet System, the whole front face engages, creating much smaller point loads. The result is the legendary reliability of the Ratchet System hubs.

Increased Stiffness

The hub stiffness is significantly defined by the distance of the bearings. For optimal performance it is important to maximize this distance, which is limited by the size of the freehub system. In the previous system the driveside bearing has to be placed next to the threaded ring and therefore the distance couldn’t be increased.

The integration of the drive side bearing into the threaded ring increases the bearing distance, resulting in a 15% improvement in hub stiffness.

Included in delivery: one hub, without quick release

DT SWISS 180 HUBS

DT SWISS 180EXP STRAIGHTPULL is lighter, stronger, more precise and easier to maintain-with the new RATSCHE EXP technology, the strength of the 180 stroke has been further improved. The ultra-reliable flywheel system can transmit the highest pedal load to achieve direct power transmission. The smooth-running SINC ceramic bearing has extremely low rolling resistance and has a decisive advantage. DT Swiss 180 Hub-Lightweight, strong and durable.

1. Press-fit side cover: the side cover which can be dismantled by hand gives the convenience of quick maintenance and specification conversion. +/- 0.0 XX mm press-fit tolerance.

2. Bearing: High-end cassette bearing, single contact surface seal ring achieves extremely low running resistance. 2080 N Single bearing load capacity.

3. Gear ring: It bears the inner Palin and transfers the torque to the hub shell. 450 NM test torque passed.

4. Light alloy mandrel: optimize the dynamic load of the stroke. After 13 times of wheel life cycle test.

5. Spring: Tested through the product life cycle of 13 times wheel set.

6. Planetary gear: the best system for transmitting torque with the lightest weight.

18 T / 20 ° bite angle | 36 T / 10 ° bite angle | 54 T / 6.6 ° bite angle | available options

7, alloy tower base: light weight and anode surface treatment. In order to reduce the running resistance, the oil seal contact surface adopts high precision and extremely smooth surface treatment. +/- 0.0 XX MM oil seal seat accuracy.

The bite angle refers to the idle angle that the hub sends the knight's kick power to the front of the wheel. We have to

understand that the reduction of the bite angle is limited because the reliability of the tower foundation system also depends on

the angle. What makes the planetary gear system so unique? The answer is because all of the teeth on the two gears can be engaged

at the same time anytime. The hub of the jack system is a control system, with only a couple of jacks engaging at a time;

Additionally, the contact area of the jack is quite small, and the tooth surface of the planetary gear system has increased much

of the occlusal area. This result has the legendary reliability of the planetary gear system and its distinctive gear biting

sound!