I build high quality precision unicycles and giraffes, including my proprietary pull apart travel giraffes. Currently I only build custom unicycles to order. I will be putting together a line of production unicycles and giraffes in the coming years. These will have all the features other manufactures have copied from early frames that were copied by other manufacturers and all my current design changes I have been developing since.
I was the first to build longer, size specific seat tubes on unicycles based on the riders inseam and seat height. The reason for building the longest possible seat tube is that it beefs up the seat post which is the weakest part of the unicycle for impacts.
Custom unicycles are available just contact me with your needs and I will get you a quote. When ordering Giraffes it is critical for me to know what you are riding. A big misconception is the common 6 footer which is in fact by Giraffe standards is actually a 5.5 footer. There has been no size standard set for giraffe unicycles, so I have set my own based on measurements from production models and my own builds.
For giraffes I have my own proprietary drive train since I spec all the parts and hand build the wheel myself the cost is in the 400.00 range. I support your choice to buy frame only and have no issue with that. The time I put into designing my frames, part selection and the tolerances I build them to make mine the smoothest riding and rolling unicycles made.
Base size calculations are as follows and how to determine the frame size is to measure from the center of the bottom bracket (crank set) to the center of the wheel axle. Sizes areas follows:
10 footer 84″ stock frame 550.00
9 footer 72″ stock frame 525.00
8 footer 60″ stock frame 500.00
6 footer 48″ stock frame 475.00
5.5 footer 42″ stock frame 450.00
4 footer 36″ stock frame 425.00
Please note I have found 5.5 footers have fallen in to a range of 39″ to 43″ I generally build custom Giraffes based on what you are currently riding and will need to get the frame measurement to replicate it. But if you are looking for a Stock custom frame the above numbers is what I go by when I build. I can build my frames to fit multiple wheel sizes. I build these around the largest wheel you plan on fitting into the frame.