RUMBA Bottom Bracket
RUMBA connects cranksets with 24 mm spindles to the frame smoothly and reliably. It combines extremely lightweight composite components with sealed 2RS ball bearings for low-friction pedaling and easy maintenance.
Made in Germany, the RUMBA bottom bracket is designed for city and trekking bikes. It offers clear compatibility and straightforward integration into your assembly process.
Key Benefits at a Glance
- Lightweight composite construction
The composite cups reduce weight while maintaining structural strength. They are corrosion-resistant and simplify installation and removal. - Smooth performance
External ball bearings support consistent pedaling efficiency. 2RS (double rubber seal) bearings protect the unit from water and contamination. - Serviceable design
The ball bearings can be replaced while the cups remain in place. This extends the service life of the system and reduces material waste. - Flexible integration
RUMBA supports 68 mm and 73 mm bottom bracket shells and uses configurable spacers for a variety of frame and crankset setups. - Reliable standards compliance
The system is certified according to ISO 4210-8 for city and trekking bikes.
Technical Specifications
FAQ
RUMBA fits cranksets with 24 mm spindles. This interface is common across many cranksets and makes integration straightforward.
RUMBA fits 68 mm and 73 mm BSA threaded bottom bracket shells. Configurable spacers help you match different frame and crankset combinations.
Yes. You can replace the bearings while keeping the cups in place. This extends service life and reduces material waste.
Composite components use 30% recycled materials and the carbon footprint of this material is 50% lower than standard materials.
Threaded composite cups simplify installation and removal and do not corrode. Pre-assembled components and spacer options also make setup straightforward.
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Our B2B Process
We work step by step to clarify what fits your setup before production begins.
1. Tell Us What You Need: Share your technical requirements and expected volumes. Our experts check compatibility with your frame and crankset and confirm the right bottom bracket for your setup.
2. Test Before You Commit: You receive a full offer and technical specification. Sample parts are also available so you can verify fit, assembly, and performance before series production starts.
3. Produce with Confidence: Once approved, we align production and delivery with your schedule. Clear documentation ensures a smooth handover into your assembly process.
