Shopping Cart

Your cart is empty.

Your cart is empty.

ShimanoAlivio BB51 BB52 Mountain Bicycle Bottom Bracket SM-BB51 SM-BB52 Deore/Alivio Hollowtech II Bottom Bracket

4.5 (1) Write Review
Free shipping on orders over $29.99

$19.99

$ 9 .99 $9.99

In Stock
  • Alivio OEM BB51 BB52 Mountain Bicycle Bottom Bracket SM-BB51 SM-BB52 Deore / Alivio Hollowtech II Bottom Bracket
  • Manufacturer: Model: SM-BB51 SM-BB52 Fits all Shimano Mountain Hollowtech II cranksets, 24mm Spindled cranks where the spindle is part of the drive arm
  • Threading: 1.37" x 24tpi For either 68mm or 73mm wide English threaded bottom bracket shells Includes bottom bracket only. Does not include spacers required for use. Buyer must purchase spacers separately elsewhere, or re-use your old ones.
  • pacer use: Use three for 68mm shells Use only one for 73mm shells Subtract one spacer if using a bottom bracket mounted front derailleur Does NOT include spacers
  • Mass: 94 grams Condition: New, not in retail packaging


This is an OE item. This item will not come with a retail box. This was originally packaged in case quantities for OE use. Please see item description for inclusions. This item is a Green item, you save green by not paying for a box and the environment wins by avoiding excess packaging.


John W. Obannon
Reviewed in the United States on September 14, 2023
It was a good thing that I did not need this right away, as it took about a month for it to arrive. Item was exactly what I needed when it finally got delivered.