The Helix Race cassette from E*thirteen is a highly advanced 12-speed cassette specifically designed for mountain biking. With an impressive range of 9 to 50 teeth, it offers a wide gear ratio that allows for easy handling of both steep climbs and fast descents. Weighing only 375 grams, it is a lightweight yet robust choice for demanding riders. The combination of aluminum and steel cogs ensures optimal performance and durability, while the precise construction guarantees smooth shifting performance. This cassette is ideal for anyone looking to elevate their mountain biking experience.
| Number of teeth smallest pinion | 9 x | 
| Number of teeth largest pinion | 50 x | 
| Number of pinions | 12-speed | 
| Weight | 375 g | 
| Item number | 20554626 | 
| Manufacturer | e*13 | 
| Category | Bike cassettes | 
| Manufacturer no. | 73.220.650 | 
| Release date | 15/4/2022 | 
| Colour | Orange | 
| Exact colour description | Orange | 
| Material group | Metal | 
| Material | 10 steel gears, 2 aluminium gear wheels | 
| Bike area of use | Mountain bike | 
| Number of pinions | 12-speed | 
| Gradation cassette | 9-50 | 
| 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 | 22.60 cm | 
| Width | 21 cm | 
| Height | 5.20 cm | 
| Weight | 554 g | 
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Source: Galaxus