Not sure of your location or their shipping, but A quick google search shows mybikeshop has them.

Reviving this thread since I just bought a 3T Vola Team and may want risers- did you find something that worked? I've seen generic kits on ebay.

the vola/revo have a unique design where the base bar and mounting hardware (or risers) meet and just throwing on generic kits won't match/line up.

Besides sourcing the right spacers, things like the aerocoach tilt block adapters or the Drag2zero blocks would work, or someone handy with some cad software / 3d printer could likely make you something that would make up that unique bit and give you a flat surface to mount any generic riser blocks to.

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