Replacement parts for all of the Daiwa, Shimano, Nissin, Gamakatsu and Shimotsuke rods sold on TenkaraBum.com are available. Parts for Daiwa rods that have been discontinued by Daiwa will remain available for five years after the rod was discontinued.
I try to keep replacement tips, tip plugs, and grip screws in stock for the more popular rods. I sell replacement parts at just barely above my cost and I do not keep an extensive inventory of parts that are unlikely to ever be needed. The larger sections, which are very unlikely to break, are not kept in stock. Of all the rods I've sold, only one has broken anywhere other than the tip or second section. Any part can be ordered, however.
For some of the rods, replacement grips can be ordered that will effectively turn a longer rod into shorter rod (and vice versa, although one or more segments in addition to the grip segment must be ordered to lengthen a rod). Be aware that replacement grips are quite expensive.
When ordering replacement parts, it is critical to order the right part, so a standard part numbering system is used across all rods. To order replacement parts for any Japanese tenkara, tanago, keiryu and seiryu rods, the tip segment is #1. The segment next to the tip is #2 and so on.
I do not encourage buying spare tips. You will very probably never need one. There is also a significant risk that the spare tip will get broken because it is hard to store a fragile item safely (and still have it handy if needed).
If you need to order a replacement part, please go to the Contact Us page to start the process.