Love shifting smoothly and reliably? Kross derailleurs are built to deliver crisp gear changes, tight design tolerances and long-term durability. They draw on elite bicycle racing pedigree while staying accessible for daily riders and trail adventurers alike.

Kross began in 1990 when Zbigniew Sosnowski opened a small bicycle shop in Przasnysz, Poland. Over three decades the company has grown into Poland’s largest bike manufacturer, designing and building everything in-house from steel, aluminium and carbon fibre frames in its own factory. Its journey includes opening Europe’s cutting-edge carbon frame production line in 2017 and expanding into electric bikes, city bikes, mountain, road and trekking models.

That history matters because the same design care, material expertise and quality control that produced race and cross-country bikes now show up in every part, including derailleurs. You get polish-made precision, tested with athletes, that translates into reliable parts you can repair, maintain and depend on in your ride every time.

• Kross Derailleurs

• In-house frame and parts engineering ensures geometry, strength and alignment are consistent so your drivetrain works smoothly.
• Own carbon fibre expertise translates trickle-down benefits into lower weight and better durability even in value derailleurs.
• Race-proven testing means parts are developed with professional cyclists under harsh conditions, so your gearing is built tough.
• Sustainable manufacturing philosophy with eco-minded practices tighten tolerances and improve precision, which means fewer adjustments and more time riding.