DT Swiss EXC 1200 27.5´´ CL Disc Tubeless MTB rear wheel

Envision riding the fastest line, a rocky ridge or over a nasty field of roots without fear. The EXC 1200 CLASSIC supports your most daring line choices, with still plenty of reserve if they don’t go to plan. Our unique process provides maximum carbon compression to push durability further than ever before. A patent-pending technique for layer-by-layer quality control ensures minimized imperfections straight out of the mold, to maximize your commitment. A lighter front rim has 28 DT revolite spokes, while the more durable rear rim has 32. The high- engaging Ratchet DEG makes for a smaller idle distance, crucial for acceleration out of corners. Get ready to push on the stages and break your limits.

Features:

Special three decades edition:
- Style and exclusivity meet unique durability in a limited 30th anniversary design, discover the EXC 1200 CLASSIC 3DEC.

Rim construction:
- Maximum layer compression through a cutting-edge carbon construction technique for our most resistant MTB rims yet.

Quality control:
- 100% ready-to-go rim, through a quality control technique scanning each rim down to the layer.

Rims:
- The rims are asymmetrical and differentiated, for added strength on the rear and lightness on the front.

Hub:
- EXC 1200 Classic wheels feature 180 classic hubs for J-bend spokes and roll on low-friction ceramic bearings. The freehub system is the fast engaging Ratchet DEG and its 90 teeth ratchets.

Spokes:
- 28 DT revolite spokes, our lightest & strongest MTB spoke in its weight category.

System weight:
- The system weight is composed of the weight of the rider and his equipment, plus the bike with luggage.

Hookless tubeless TSS:
- Hookless Tubeless, or Tubeless Straight Side (standard abbreviation TSS) describes the design of the rims. Tubeless-capable rims can be driven without an inner tube, but a tube set up is also possible. Hookless or Straight Side describes the shape of the rim flange, which in this case is constructed straight, without the classic hook. This design creates benefits regarding increased impact stability of carbon rim flanges and is feasible up to 5 bars tire pressure.

Rim height:
- In cycling, rim height significantly impacts the aerodynamics, agility and weight of the wheel. The general principle is the higher the profile of the rim, the greater the aerodynamic advantage; the lower the profile of the rim, the greater the response and better the handling when cornering and changing speed.

Rim Inner Width:
- DT Swiss offers MTB rims with inner rim widths of 20 - 76 mm. The right combination of tire width and rim width leads to ideal tire support. Better tire support reduces the risk of ´´burping´´ and therefore allows the tire pressure to be reduced. On the other hand, wider rims and wider tires also increase the weight of the wheels.

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.

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.

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.

SRAM XD MTB (ASRAM):
- Aluminum freehub body for 11- and 12-speed SRAM MTB cassettes with XD mount.

Pro Lock:
- Pro Lock is a thread lock function which prevents the spoke-nipple connection from loosening, allowing for extremely durable wheel builds.

Specifications:

- Net weight: 936 g
- Recommended System weight max.: 130 kg
- ASTM classification: 5
- Approved for e-bikes: Yes (max. 32Km/h or max. 250W)
- Material: Carbon
- Tire interface: Hookless tubeless TSS
- Valve hole: Presta
- Rim Diameter: 27.5´´ / 650B
- Rim Height: 22 mm
- Inner Width: 30 mm
- Outer width: 37.2 mm
- Hub type: 180
- Axle system: 12 mm Thru Axle
- Built-in dimension: 157 mm
- Brake Interface: Disc Center Lock
- Cassette interface: Sram XD
- Freehub body: SRAM XD MTB (ASRAM) (mounted)
- Freehub system: Ratchet DEG 90
- Spokes left: DT revolite®
- Spokes right: DT revolite®
- Spoke pattern: Three-cross (1:1)
- Nipples: DT Pro Lock flat hexagonal alu

Inclusive:
- Tubeless tape 32 mm
- TL valve alu black 18-25 mm
- Shim Micro Spline freehub kit
- Wheel bag

Technology:

Pure carbon technology:
- An industry disrupting rim manufacturing process and a layer-by-layer nondestructive inspection of every product creates light yet durable rims for a long-lasting riding experience.

Tubeless technology:
- All DT Swiss wheelsets are tubeless compatible and the ASM versions come tubeless ready, equipped with tubeless tape and valves.

DT Pro Lock® Technology
- DT Pro Lock is a process where a dual compound, adhesive liquid is injected into the nipple thread, allowing for extremely durable wheel builds. By threading the nipple onto the spoke the adhesive is activated and starts to harden. Re-truing the wheel is still possible after the adhesive has hardened completely, with only a minimal decrease of its thread-lock function.

Bearing Technology:
- 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.