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How we developed the Mad4One's Frames. The reasons of our choices


The Product-Categories

This Category includes all UNICYCLES designed and produced by us, in the two Product-Lines:

Aluminum (brand MAD4ONE)

Steel (brand URC)

divided into SPECIALTIES


Here an overview on the wheel size

203mm 305mm 355mm 387mm 406mm 507mm 559mm 571mm 584mm 622mm 686mm 787mm
12,5" 16" 18" 19" 20" 24" 26" 26" 27.5" 28-29" 32" 36"

trial with tire20x2.5

      MTB  Race 650B     700C    






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