Color Model DR-106 RRP ¥238 Specifications Material Al Alloy Weight 16g(Without Spring) Compatibility DT RATCHET SYSTEM/FOVNO HUB POSSIBLE HUB/VITOO HUB/VENFORT HUB Accessories Spring×2、Maintenance Grease×1 Technical Documentation Please find the installation and use instructions in the technical support, and check the technical documentation of the corresponding product Click here