Specifications:
- Bearing specification: Inside diameter: 18mm – Outside diameter: 30mm – Width: 7mm
- Si3N4 Ceramic Hybrid Bearing, Grade 5
- Dimensions – 18 x 30 x 7
- Seals: 2RS(LLB)
- Made in Taiwan
 
The ceramic bearings utilize G5-grade ceramic balls and are paired with precisely machined steel race, delivering excellent rotational performance for riders.
ZERO Contact Seal, a non-contact bearing seal, provides complete coverage without increasing rotational resistance, striking the optimal balance between efficiency and protection.
Sizing Information
- Size – 18x30x7mm
- Made in Taiwan
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