1. More practical and best quality bike parts for professional racers and bike enthusiasts alike.
2. Hi-tech components.
3. To achieve a higher standard, JBCpro not only assists overseas customers to build up their own brands but also helps them with R&D and the latest technologies.
1. Material: carbon fiber.
2. Description: 1-1/8" Sealed cartridge bearings.
3. Weight: 90g.