Certified for a maximum system weight of 180 kg, this e-bike specific wheel is able to cope with these increased loads: Featuring a thicker cross section and laced with reinforced 2.34 mm spokes, these wheels are built for longevity. The 370 hub rounds up the package with the legendary Ratchet System with 18T. The reliability of the wheel comes from the quality of it’s assembly. All wheels are hand-laced by professionally trained wheel-builders, ensuring equal residual spoke tension in every riding situation.
Features - DT Swiss HU 1900 Spline® 25
- BUILT TO LAST - The HU 1900 SPLINE wheels have been engineered to ensure lasting durability even under high loads. With an approved maximum system weight of up to 180 kg at ASTM F2043 Condition 2.
- REINFORCED RIM - Wider rim cross section for a higher rim stiffness enabling a stronger resistance even under big loads.
- REINFORCED SPOKES - 2.34 mm spoke heads, for enhanced withstanding resistance, even at a high total system weight.
Product features
- Use: E-touring
- Model: HU 1900 Spline®
- Wheel size: 29"
- Rim diameter: 622 mm
- Rim type: Clincher
- Tire interface: Hokked / Crotchet tubeless TC
- Inner width: 25 mm
- Outer width: 30 mm
- Rim height: 22 mm
- Axle system: 5 mm (QR)
- Built-in dimension: 100 mm
- Hub Type: 370 HYBRID Straightpull
- Spokes: DT hybrid 1
- Nipples: DT ProLock Squorx ProHead alu
- Spokes: 28
- Spoke pattern: 3-cross (1:1)
- Rim Joint: Pin Joint
- Valve hole: Schrader (plus Presta-adapter)
- Brake interface: Disc Center Lock
- Recommended system weight max: 180 kg (body weight + bike + equipment)
- ASTM Classification: 2
Material
- Rim: Aluminium
- Hub: Aluminum
- Spoke: Stainless steel
- Nipple: Aluminum
Weight
- 1090 g (manufacturer information)
Scope of delivery
- 1 x DT Swiss HU 1900 Spline 29" 25 mm CL Front Wheel
- Quick release
- Tubeless tape 27 mm
- Tubeless valve 32 mm
- Valve adapter AV to SV
Technologies
Reinforced Rims
When the total system weight (bike plus rider) is high on less than ideal ground, the rims can deform permanently during the ride. This exposes the rim and spoke to dynamic loads which are counteracted by the rim and spoke tension. This means that the more deformation is happening on the rim, the more dynamic stress will be applied on the spoke holes and thus affect the durability of the rim and therefore, the wheel.
The combination of lab tests based on real-world recorded burdens and the latest FEM analysis highlighted that the rim height has a positive and strong influence on the overall durability of the rim and thus the wheel.
The higher the rim cross section, the higher the stiffness of the rim and consequently, the higher the resistance to deformation even under bigger loads. For the HU 1900 SPLINE, DT Swiss developed an extremely durable rim at a relatively low weight.
Reinfcorced Spokes
When it comes to dynamic stress, the same logic for the rim also applies to the spoke head: under high loads, the spoke heads experience a continuous dynamic load. In order to address this potential weak spot, DT Swiss has reinforced the spoke head to 2.34 mm to ensure resistance, even at a high total system weight.
The output tension of the spokes also plays an important role. It is therefore essential that residual spoke tension is maintained in every riding situation, in order to keep the peak load low on the individual components of the wheel.
This makes precise and knowledgeable wheel building of paramount importance. All DT Swiss wheels are assembled 100% by hand in order to pay particular attention to the tension of the spokes.
Hub Shell & Freehub
Due to the battery and motor, e-touring bikes tend to weigh more than traditional touring bikes of the same category.
The reinforced hub shell enables better resistance to the higher drive torques from the motors and to the heavier brake torques from the additional weight of the modern e-touring bikes; these factors improve the hub's strength and reliability.
The torque of the motor and crank is transmitted via the chain to the cassette and then to the freehub body. To resist them, the Hybrid freehub bodies are made from specific hardened steel. Compared to the conventional, aluminum freehub body, the specific hardened steel offers a higher static strength. In addition, it has a higher fatigue strength. This means that even after a high number of load cycles and high peak loads occurring on accelerations, the steel freehub body offers better resistance to minor marks and wear on its surface.
Straightpull technology
The term Straightpull refers to spokes with no bend at the head. This design allows for an ideal strength to weight ratio when compared to conventional spokes. Due to their more precise alignment and direct trajectory, straight-pull spoke technology creates a stiffer, more responsive wheel.
DT Swiss Support for Conversion
The support site offers an overview and can help you to find the right conversion kit to convert your hub to fit a new axle measurement or for a new group set.
7613052349299