Where can I buy a new inner tube? Chris January 26, 2018 11:10 Updated Follow You can order a new inner tube from Gocycle.com or any reputable cycle dealer. The inner tube must be suitable for a 20in x 1.75in (406mm x 47mm) wheel size. Follow this link for the Gocycle webstore, or your nearest Gocycle Reseller. Related articles How long will the Gocycle Performance Tyres last? Can I use alternative tyres? Where can I buy a new tyre? Is there a speed limit for Gocycle? Modifying the Gocycle Comments 0 comments Please sign in to leave a comment.