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It was Jan-Willem Sintnicolaas' passion for riding that eventually led to him designing bicycles. Jan is unwavering in his belief that Titanium is the best material with which to build bikes. It's a commitment that’s as strong as the frames he designs. He will only design with this unique metal. And he will create only one, perfectly-fit-for-purpose bike for each riding style.A J.Guillem frame is built to provide endless hours of riding pleasure and last a lifetime. Guaranteed by a 100-year warranty against defects in materials and workmanship. And uniquely, each style of frame is named after a place in Mallorca that is special to Jan, its GPS coordinates etched into the frame. So, one day, you too may find the pleasure he found there.