Giant Defy Seat post of Giant Defy wasn’t tightened properly and slipped right up to where seat tubed narrows down. Share this:TwitterFacebookLike this:Like Loading... Related August 10, 2015August 10, 2015 by London Carbon Repairs Tags: carbon fiber bicycle frame repairs london, carbon fiber bicycle repair, carbon fiber bicycle repair london, carbon fiber bicycle repair modification london, carbon fiber bicycle repairs london uk united kingdom, carbon fiber fork modification Leave a comment