EIE ECSR3.2 SL are ultralight carbon spokes weighing just 2.2 grams. The full carbon construction combined with aluminum end caps offers an exceptional stiffness-to-weight ratio. These spokes create wheels that are extremely stiff, extremely light, and respond with instant response to every rider input. They are designed for use with special hubs and are ideally suited for building top-of-the-line racing bikes where maximum power transfer and performance without compromise are emphasized.

Sapim Alu Double Square Secure Lock are top-of-the-line aluminum nipples designed for maximum spoke strength and stability. Thanks to their special construction with a double square profile, they allow for more precise centering and even distribution of spoke tension, which contributes to a longer wheel life.

The patented Secure Lock system prevents nipples from loosening spontaneously, which helps maintain spoke tension even under extreme loads. The low weight of the aluminum alloy contributes to the overall reduction of the wheel's weight, which will be appreciated especially by racers and performance-oriented riders.

Thanks to their precise processing and high corrosion resistance, Sapim Alu Double Square Secure Lock nipples are the ideal choice for road, gravel and MTB bikes, where the emphasis is on low weight, strength, and reliability of the spoke.