Tangeseiki LN-3912 Square Tapered Bottom Bracket 73 x 118 mm Bicycle electric pump PowerGlide II™ technology provides super-smooth

PowerGlide II™ technology provides super-smooth shifting between gears

kevlar and aluminum filaments) or Tirox or T4

Practical Design: High neck for coverage

Sustainably made in Germany

Mounting: Garmin-style quarter-turn / mounts included :contentReference[oaicite:5]{index=5}

Tangeseiki LN-3912 Square Tapered Bottom Bracket 73 x 118 mm Bicycle electric pump PowerGlide II™ technology provides super-smoothFeatures Square tapered bottom bracket designed for reliable and smooth crank performance. High quality steel axle ensures strength, durability, and long service life. Sealed bearing construction helps reduce friction and protects against dirt and moisture. Compatible with frames using a 73 mm bottom bracket shell width. 118 mm axle length provides proper chainline for compatible cranksets. Precision engineered for stable power transfer and efficient