The Helix Race cassette from E*thirteen is a highly advanced 12-speed cassette specifically designed for mountain biking. With a gear range from 9 to 50 teeth, it offers a wide range of gearing that allows for efficient handling of both steep climbs and fast descents. Weighing in at just 375 grams, this cassette is lightweight and does not add unnecessary weight to the overall bike. The 12-speed design ensures precise shifting and smooth performance, while the striking Eggplant (purple) color adds a modern touch. The 2023 model year guarantees that the cassette is equipped with the latest technologies and materials to meet the demands of discerning mountain bikers. The Helix Race cassette is therefore an ideal choice for anyone looking for a powerful and reliable shifting solution for their mountain bike.
| Number of teeth smallest pinion | 9 x | 
| Number of teeth largest pinion | 50 x | 
| Gradation of pinion sizes | 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 | 
| Number of pinions | 12-speed | 
| Weight | 375 g | 
| Item number | 21436670 | 
| Manufacturer | e*13 | 
| Category | Bike cassettes | 
| Manufacturer no. | 73.220.640 | 
| Release date | 7/7/2022 | 
| Colour | Violet | 
| Exact colour description | Eggplant | 
| Bike area of use | Mountain bike | 
| Number of pinions | 12-speed | 
| Gradation cassette | 9-50 | 
| Gradation of pinion sizes | 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 | 
| Number of teeth smallest pinion | 9 x | 
| Number of teeth largest pinion | 50 x | 
| Model year | 2023 | 
| Country of origin | Taiwan | 
| CO₂-Emission | |
| Climate contribution | 
| Weight | 375 g | 
| Length | 20 cm | 
| Width | 20 cm | 
| Height | 5 cm | 
| Weight | 200 g | 
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