Shimano UN300 Bottom Bracket Keka 118mm 68mm - Silver

Upgrade and forget it with the Shimano BB-UN300—a sealed cartridge bottom bracket designed for smooth, durable performance. Utilizing the proven JIS square-taper interface, it fits BSA (1.37" x 24) threaded frames with a 68 mm shell, and this version features a 118 mm spindle. A built-in stabilizer helps maintain a consistent chainline, while the sealed bearings keep out water and grit for long, quiet miles. Simply bolt it in, align your chainline, and enjoy that classic Shimano reliability with minimal maintenance.

- Shimano BB-UN300 is a sealed cartridge bottom bracket for BSA 68 mm frames with JIS square-taper cranks
- 118 mm spindle and an internal stabilizer deliver a straight, reliable chainline
- BSA 1.37" x 24 threading ensures broad frame compatibility across road, trekking, and MTB
- Low-maintenance, long-life sealed bearings keep out water and dirt for smooth pedaling
- Easy installation with a standard cartridge BB tool makes this a hassle-free replacement

Specifications
Brand: Shimano
Model: UN300
Type: Bottom bracket
Bottom Bracket Width: 68mm
Axle Length: 118mm
Color: Silver