Carbonbike bottom bracket adapters $100.00 This adaptor is used for reducing bearing size to 30mm. 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 Draft bumper inserts $60.00 Add to shopping bag Draft bumper $100.00 Select options Camber axle insert “kneeler” $100.00 Add to shopping bag Tetra adaption bars for mounting brake and shift lever to frame $120.00