H-Carbonbike bottom bracket adapters $100.00 This adaptor is used for reducing bearing size to 30mm. H-Carbonbike bottom bracket adapters quantity Add to shopping bag Description Additional Information Need Help? Contact Us Leave Feedback Contact Us Enter your contact details or email form shortcode here. (Text/HTML/Shortcodes accepted). Leave Feedback Enter your feedback modal content here. (Text/HTML/Shortcodes accepted). Share Related Products Select options H-Bottom bracket spindle $125.00 – $250.00 Add to shopping bag H-Carbon fork knee protectors $175.00 Select options H-Camber axle insert “kneeler” $100.00 Select options Flag $25.00