Bearing Shell BSA Bottom Bracket MTB Hollowtech II for Deore SM BB51 / BB52
Product ID: 48812238
📏Fits 68/73 mm shell widths
🔧Includes adjustable distance rings
⚙️Precision BSA threading
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The Shimano Bearing Shell BSA Bottom Bracket MTB Hollowtech II (SM BB51/BB52) is a durable, high-performance bearing set designed for BSA threaded frames with 68 or 73 mm shell widths. Compatible with Shimano Deore Hollowtech II cranks, it includes adjustable distance rings for precise chainline tuning, ensuring smooth, reliable pedaling and easy installation.
| ASIN | B008MIL31M |
| Batteries included? | No |
| Best Sellers Rank | 22,129 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 15 in Bottom Brackets for Bikes |
| Brand | SHIMANO |
| Color | Aluminiumlagerschale |
| Customer Reviews | 4.4 4.4 out of 5 stars (613) |
| Date First Available | 24 April 2015 |
| Is discontinued by manufacturer | No |
| Item model number | bb51/bb52 |
| Manufacturer | Shimano |
| Package Dimensions | 12.8 x 6 x 5.6 cm; 120 g |
| Size | 68/73mm |
| Sport | Radsport |
O**B
Usual shimano quality
Perfect! Looks good (as far as a BB can). Well greased and threadlocked. Easy to fit and no unnecessary packaging. FYI use 1 spacer on drive side if 73mm shell or just your chain guard of fitted. I believe it's 1 (non drive) and 2 (drive) spacers for the other sizes.
K**N
Good price and as described in the listing
Quick delivery with Prime, product as described and easily fitted to replace a worn bearing.
M**T
Compact light bottom bracket
Liked the lightness and seem well made but having read other reports I packed extra grease on bearings, don't think they're as weatherproof as the old square taper sealed types but time will tell.
C**G
Shimano quality
Not much to say really, great price and works well, usual Shimano quality
C**K
Replaced the OE bottom Bracket
Straightforward replacement. Bearing was fully packed with grease and the threadlock pre-applied. Good firm fit with crank.
S**.
Hollowtech bracket
Fitted and working well
W**W
Great bottom bracket at a good price
Perfect fit and easy to install. Works like a charm on my old trek 6700 mountain bike
B**L
But not a bad price to keep replacing till the crank wears out
Seem to burn through bottom brackets at the rate of 1 a year. But not a bad price to keep replacing till the crank wears out.
Trustpilot
3 weeks ago
2 weeks ago