I know this is the exact length required if you are building a wheelset with Stans ZTR Crest mk3 or mk4 rims and Sram 900 hubs in 28 hole, 3-cross lacing pattern configuration.
This will build up a really light 24" wheelset as these have 1.8mm ends not the usual 2.0mm ones.
They don't make them anymore!
240mm length
In terms of weight, DT Revolution is the lightest round spoke in the DT Swiss spoke range! The diameter of the middle section is reduced to 1.5 mm during the cold forging process. This slim centre piece saves 161 g in weight compared to spokes with a constant diameter. Its use is very versatile due to the ideal ratio between stability and low weight. DT Revolution is a reliable partner for anyone looking for a light wheel in a classic design. Weight: from 283 g for 64 spokes at a length of 264 mm.
- Product type J-bend
- Blading None
- Reduction Double butted
Spoke
technology
The production of high quality spokes marked the beginning of the company. DT was the synonym for top quality Swiss spokes even before the establishment of today‘s DT Swiss AG. To this day, DT Swiss spokes stand for durability and precision and are unrivalled thanks to their unique production process. They combine lightweight with stability.
QUALITY THROUGH EXPERIENCE AND KNOW-HOW
Product development at DT Swiss focuses on new trends, technical innovation and very high quality standards. The spoke range is fine-tuned in line with the different requirements of the various cycling-disciplines. The portfolio is complemented by the numerous versions of lengths, diameters and colour variants, so nothing stands in the way of building the perfect wheel.
STRAIGHTENING PROCESS
The first processing step is the same for all types of spokes. Wire from large reels is fed through a machine where it is straightened and cut to length. A very precise straightening process is mainly important for the smooth operation of the following processing steps. Only the highest quality 18/10 stainless steel is used.
COLD FORGING
This process, which was developed and patented by DT Swiss, is used to double-butt the diameter of the spokes. Oscillating hammers rotate around the wire. This process densifies the material and reduces it in diameter. This cold forging process hardens the material while ensuring that it retains its good ductility. The result is a spoke with a slim butted section for lightweight and a strong head and thread for durability.
SHAPING OF HEAD AND THREAD
Head and thread are made during this step. First, the spoke is cut to the exactly calculated size, the head is formed and the known DT symbol is embossed on the spoke head. Classic spokes are subsequently elbowed in a 90 – 95º angle, which gives them their typical J-shape. The other end of the spoke is rolled to a thread. Rolling provides additional material strength at the thread.
FLAT FORGING
The source material is straight gauge or cold-forged spokes, which are bladed during this process with a weight of up to 250 tons. This flat shape of the spoke provides particularly aerodynamic advantages. If the spoke was initially cold-forged, then this additional forging process densifies the material even more, which in turn achieves a greater strength at a lower weight.
BLACKENING
Approximately 50 % of the produced spokes leave the factory in their original silver color. All other spokes are blackened. In the blackening process, the spoke is treated with a weight-neutral, chemical coat.
QUALITY CONTROL
Quality control starts with the inspection of incoming certified raw material and continues throughout the whole production process. Material analyses are performed and the material is checked for dimensional accuracy, geometry and optics through permanent random sampling. In addition, new materials undergo comprehensive analysis and test programs before they are released for series production.