Alta Bike Bicycle

ALTA Alloy Euro Bottom Bracket Set – 51A – 19mm Kit – Black

Upgrade your BMX, MTB, or freestyle build with the ALTA Alloy Euro 51A Bottom Bracket Set. Designed for Euro bottom bracket frames, this kit features sealed bearings, a 19mm spindle interface, and durable alloy construction for smooth, long-lasting performance.

• Shell Type: Euro

• Interface: ENG (English threading)

• Spindle Type: 19mm

• Bearings: Fully sealed

• Material: Alloy

• Color: Black

• Compatibility: Fits 19mm crank spindles and Euro B.B. frames

• Brand: ALTA

The ALTA Euro 51A Bottom Bracket Set delivers smooth rotation, durability, and a clean, modern look for any Euro-style frame. With sealed bearings for reduced maintenance and alloy cups for strength, this bottom bracket is ideal for BMX, MTB, and custom builds using 19mm crank spindles. Its English-threaded design ensures universal fitment with most Euro shells.

A perfect upgrade for riders seeking reliability, precision, and performance in a lightweight bottom bracket setup.

Extra Notes

• European Sealed Bottom Bracket Kit
• Includes: Cone spacers, Internal spacer, European cups, 2 Sealed Bearings
• For cranks with  19mm Spindle & need an European bottom bracket.
• Will not fit threaded spindle that is for loose ball bearings.
• Bulk pack.