DT Swiss 240 Classic Lefty Disc IS 6B front hub

The 240 is designed for riders with the most extreme ambitions. You have the choice whether you want to count on the 240 with a weight advantage from the DT Swiss Ratchet EXP system or with the small engagement angle of the patent pending DT Swiss Ratchet DEG. The EXP system offers fewer parts and is available in 36 and 54 teeth. Ratchet DEG offers 90 teeth, but also ensures the well-known reliability thanks to its larger design.

Special Three Decades Edition:
- Build a unique pair of wheels with the Three decades edition 240 hub and its design based on the legendary Hügi hub. This limited edition is equipped with the ultra-fast engaging Ratchet DEG system.

Ratchet Exp And Ratchet Deg:
- The 240 hub is available with the lighter Ratchet EXP freehub system or with the Ratchet DEG high-engagement system.

Ratchet Exp:
- The lightest freehub system from DT Swiss.

Ratchet Deg:
- The fastest engaging freehub system from DT Swiss, with 90-toothratchets. Its innovative construction allows bearing replacement without special tools, as the threaded ring does not have to be removed.

High Compatibility:
- The 240 hub is available in CLASSIC and straightpull, in the common standard dimensions and with the common freehub systems.

Brake Interface:
- The advantage of the Center Lock system is that the disc brake attachment is made with one single lock ring, which facilitates assembly. On the other hand, an advantage of the IS-System (6 Bolt) is that in the event of a necessary repair on the trail, no special tool is needed for disassembly.

Center Lock:
- Center Lock refers to a system for brake discs that was developed by Shimano. The brake disc is mounted on the hub by means of an external spline and screwing on a lock ring. The advantage of the Center Lock system is that the brake discs are centered and mounting requires only screwing down a single lock ring.

Shimano Light (ASL):
- Milled aluminum freehub body for Shimano 10 and 11-speed MTB cassettes. Visit the brand website for more details about the compatibility of the freehub bodies.

Thru-axle:
- Thru-axle refers to a wheel mounting system. RWS technology from DT Swiss allows quick, precise mounting simply by turning an easily adjustable lever. Thru-axle systems guarantee a rigid and secure connection between the wheel and the frame. Thru-axles must be compatible with the frame and fork because the built-in-width, diameter and thread of the axle vary and are defined by the frame and fork manufacturer.

Boost:
- Boost refers to wider axle dimensions. Frame and fork manufacturers use this to build a stiffer bike overall. A flatter spoke angle on the wheel can be created by increasing the flange distance, which improves the symmetry and increases the stiffness, especially on large wheels.


Specifications:

- Net Weight: 124 G
- Field Of Application: Mtb
- Material: Aluminum
- Brake Interface: Disc Is (6-bolt)
- Axle System: Lefty
- Built-in Dimension: Lefty 50
- Number Of Holes: 28


Technology:

Engagement Angle:
- A hotly discussed topic in the market right now - engagement angle! What is the engagement angle, how does this angle affect riding performance and is the conventional wisdom.

Bearing:
- DT Swiss hubs are designed to function optimally once installed in a bicycle. To achieve this, the clamping force created by the wheel mounting system must be taken into account when constructing a hub. Learn how to ensure the optimal rotating property of the ball bearings and discover why DT Swiss does not offer hubs with adjustable bearing clearance.