The ride starts here.
What’s new?
KUNUNU Top Employer
THUN has been named Kununu Top Employer 2026. Based on feedback from our own team, the award reflects what shapes everyday work in Ennepetal: shared knowledge, real responsibility and bicycle components built for riders around the world.
Bolero
Meet BOLERO, THUN’s latest lightweight bottom bracket for racing and gravel bikes. Made in Germany, it pairs a deep-drilled SL spindle with sealed 2RS bearings and extra-short spindle options for compact frames.
Eurobike 2026
Our full team is attending Eurobike again this year. We can't wait to connect with customers and partners, showcase our latest developments, scout trends and gather inspiration. It’ll be great to dive deeper into our portfolio and exchange ideas.
honest bicycle components
About thun
For more than 100 years, THUN has been developing and manufacturing bicycle components in Europe. We focus on the parts and systems that turn pedal power into movement and help make every ride feel stable and reliable. From city bikes to e-bikes, THUN delivers drivetrain components that fit the way bicycles are built today. With decades of expertise in bottom brackets, cranksets and OEM requirements, we help manufacturers build with confidence.
BOLERO Bottom Bracket
BOLERO delivers efficient power transfer for racing and mountain bikes. It combines low weight with high stability under load. Made in Germany, its cold-forged, ZN-coated (A2B) steel spindle, composite sleeve, and composite cups deliver strength without adding weight. The…
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WORTH A CLOSER LOOK
Want to learn more about our products? Then take a look at all of them and our current catalogue.
The ride starts here. Every single second makes a difference. You make a difference. Get on your bike—in the city, in the countryside, wherever. On any road, on any trail, in any weather. Just start moving. Start a movement. Set an example. Set boundaries. Be kind to others. Find balance. Screw perfection. Foster change. Embrace failure. Prioritize your health. Eat well. Work those muscles. Take breaks. Go dancing once in a while. Sit by a campfire. Spend time with family and friends. Watch the sunrise. Enjoy simplicity. Do what you are passionate about. Make it count.