DT Swiss EX 1700 CLASSIC® 30 MTB Rear Wheel 29“ BOOST (12x148mm) SRAM XD™

Enduro riders who sometimes ride off the beaten track need a wheel that can easily take hard hits, rough trails and quick direction changes.

The DT Swiss EX 1700 CLASSIC® 30 rear wheel combines a robust aluminium rim with the high-quality 350 CLASSIC® hub and Ratchet DEG® DF 72 freehub system. The small 5° engagement angle ensures direct power transfer. In addition, the freewheel's free stroke can be extended by up to 20° to reduce pedal kickback and allow the suspension to work more smoothly on rough trails.

The rear wheel-specific, asymmetrical and welded rim ensures a good balance of agility and durability, while the DT Competition® Race J-Bend spokes with extra-thin centre section save weight without noticeably sacrificing stiffness or robustness.

In this version, the rear wheel is equipped with a SRAM XD™ freehub body.


Technologies:

• RATCHET DEG DF®:
The Ratchet DEG® DF freehub system from DT Swiss combines the engagement angle of the Ratchet DEG® system with an adjustable additional free stroke before the freehub engages. Depending on the setting, 0°, 10° or 20° additional free stroke is available, which can reduce pedal kickback on rough trails. The enlarged steel ratchets continue to ensure even power transfer over a large contact surface. 

• TUBELESS:
All DT Swiss wheels are tubeless ready. The profiles of the DT Swiss rims are specially designed for tubeless use. The rim profile makes it easier to fit the right tyre and ensures a perfect fit. The tubeless system of the rim consists of DT Swiss tubeless ready tape for sealing and a DT Swiss tubeless valve in a length that complies with the rim. When using tubeless ready tyres, a compatible sealant must be used. However, it is also possible to use a conventional combination of tyre and inner tube.

• BEARINGS:
Having learned from years of experience, DT Swiss only uses durable cartridge bearings without bearing play adjustment. DT Swiss hubs are designed to have the optimum axial and radial bearing play when they are properly installed. The correct preload of the bearings to compensate for the clamping force of the wheel mounting system is the basis for a play-free hub with minimum friction.

• PRO LOCK®:
DT Pro Lock® prevents the spoke-nipple connection from loosening. In the Pro Lock® process, a special dual component adhesive is injected into the nipple thread, allowing for extremely durable wheel builds. By threading the nipple onto the spoke the adhesive is activated and then hardens completely within a few hours. Re-truing the wheel is possible, yet it will cause a slight decrease in the adhesive power each time.


Technical details:

Rim:
• Wheel size: 29"
• Rim material: aluminium
• Rim type: clincher
• Rim profile: Hooked rim (asymmetrical)  
• Brake type: disc brake
• Rim depth: 22 mm
• Rim width: 35 mm
• Inner rim width: 30 mm
• ETRTO: 622 – 30
• Valve type: Presta (Ø 6.5 mm)
• Tubeless capability: yes (tubeless ready) 
• Suitable tyre width: approx. 1.85" – 2.8" (recommended tyre width: approx. 2.1" – 2.7")

Spokes and nipples:
• Spoke type: DT competition® race, J-Bend
• Number of spokes: 32
• Spoke pattern: 3-cross
• Nipples: DT ProLock® Flat Hexagonal aluminium

Hub:
• Series: 350, CLASSIC, 2 sealed cartridge bearings
• Brake type: Disc brakes
• Hub body: aluminium
• Brake disc mount: CenterLock (IS 6-bolt with optional adapter)
• Freehub body: aluminium 
• Freewheel body standard: SRAM XD™
• Freewheel system: DT Ratchet DEG® DF 72 with 5° engagement angle and adjustable free stroke (0° / 10° / 20°)

Axle:
• 12 x 148 mm (BOOST thru axle)

Cassette compatibility:
• SRAM XD™ 11-/12-speed MTB cassettes 
as well as other SRAM XD™ compatible cassettes.

Weight:
• Weight: approx. 1117 g

Clearance:
• ASTM category 5: for use in extremely steep and rough terrain with very large jumps/steps as well as very high speeds by riders with extremely good riding skills (bike parks, downhill tracks, dirt jump etc.)
• Max. system weight: 130 kg (cyclist, bike, gear and luggage)
• E-bike release: yes (for licence-free pedelecs up to 25 km/h pedal assistance) 

In the box:
• 1 DT Swiss EX 1700 CLASSIC® 30 MTB rear wheel 29" BOOST, SRAM XD™ 
• 1 DT Swiss Tubeless Ready rim tape 32 mm (fitted)
• 1 DT Swiss tubeless valve asymmetric for 18-25 mm rim depth

Manufacturer: DT Swiss AG, Längfeldweg 101, 2504 Biel, Switzerland, www.dtswiss.com
Responsible person: MERIDA & CENTURION Germany GmbH, Blumenstraße 49-51, 71106 Magstadt, Germany, www.mcg-parts.de