Built to last; the HU 1900's are designed for every day use where your E-bike needs to be ready to ride at any time, whether it's for hauling heavy loads or cutting through the morning rush hour DT's Mission Hybrid is the first wheel engineering project to look specifically at the challenges of prolonged E-bike use for wheel design and to produce wheels designed from scratch to handle this The HU 1900's feature reinforced 370 hubs containing DT's legendarily reliable 18-tooth Ratchet system; the ideal solution for when you depend on your E-bike every day The rims have reinforced spoke beds to resist fatigue and handle high loads for long periods of time Custom Swiss-made Hybrid spokes are thicker at key high-stress areas and seriously tough 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 standard wheels The HU 1900's versatile 622 x 25 mm ERTO rims can accept either 29" mountain bike tyres or wide (35c and over) 700c touring and urban tyres, making these ideal for bikes that may need to be adapted for a variety of requirements For heavier riders or those looking to carry loads the HU 1900's sport a substantial system weight limit of 180 KG for a weight of only 2,324 grams a pair. Axle Type: Bolt Thru 15mm Brake Type: Disc Colour: Black Discipline: E-Bike Hub Width: 110mm Rim Type: Alloy Clincher Wheel Diameter: 700C/29 inches Product Type: Front Wheels