E-MTB-friendly toughness at a budget-friendly price; the H 1900's have long been the choice for EMTB riders looking for improved reliability and the latest versions have been upgraded with Ratchet LN technology to provide even more trouble-free laps E-MTB's are tough on wheels, really tough, not only is there the added weight and higher maximum drive torque but E-MTB riders tend to ride further and more frequently, this adds up to a real challenge for anyone looking to design a truly durable wheel for long term E-MTB use. DT Swiss have engineered the Hybrid 1900 to handle the extra demands of E-MTB riding. The H 1900's hub shells are oversized to improve overall stiffness and the rear hub contains an 18-tooth ratchet LN freehub system, by far and away the most reliable drive mechanism available at this price point In order for a wheel to pass as Hybrid certified in DT's inhouse testing lab it has to survive 50% more lifecycles, its spokes and rims have to endure 20% higher load tests and the bearings must be able to handle almost twice the maximum load of a standard wheel 12x148 Boost rear axle sizing Shimano MicroSpline or SRAM XD freehub options available 29" or 27.5" sizes 6-Bolt Disc Rotor fitment 30mm internal rim diameter Includes DT tubeless rim tape and valves The matching front wheel is available here