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Shimano UN54 Bottom Bracket Bottom Bracket


  • Average Rating: 5/5
  • MSRP: $ 30.00
  • # of Reviews: 2

Where To Buy


Jenson USA

Modern Bike

Tree Fort Bikes

Bicycle Buys

Wheel World

Product Description

Finally, a good model for older bikes that already have square taper cranks.


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Reviews 1 - 2 (2 Reviews Total)

User Reviews

Overall Rating:5
Value Rating:5
Submitted by mtbnachos a Cross Country Rider from San Diego

Date Reviewed: September 24, 2009

Strengths:    Price, durability

Weaknesses:    Weight, non-drive bb cup is plastic

Bottom Line:   
Have beaten this bb to death and still works like I just bought it. This is THE quintessential budget bb for square taper cranks. Only White industries is better than the tough hombre. I am definitely buying more for the road.

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Favorite Trail:   Noble Canyon, CA

Duration Product Used:   2 Years

Price Paid:    $19.00

Purchased At:   JensonUSA

Bike Setup:   Vassago Jabber


Overall Rating:5
Value Rating:5
Submitted by rkj__ a Racer from Niagara Falls

Date Reviewed: August 24, 2009

Strengths:    Durability

Weaknesses:    It's not light, but for the price, I don't expect it to be

Bottom Line:   
Fantastic product. I waited until the end of this product's lifespan to write a review,... I waited 5 years. I just replaced my BBUN54 today because it developed a little bit of play. It remained quiet.

This bottom bracket was flawless for 5 years or riding. It has endured so much. I only own one mountain bike, so it gets quite a bit of use. This BB lasted through many 1.5h, 8h, 9h, and 24h races, rainy 100km rides, sub-freezing rides, 3' drops, trips to the skate park. It has seen many bike washes after many muddy events.

This product is an absolutely fantastic value. For that reason I just replaced it with another BBUN54.

5 chilis.

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Favorite Trail:   The HOOD

Duration Product Used:   More than 3 years

Purchased At:   Liberty! Bicycles

Similar Products Used:   OEM junk

Bike Setup:   2005 Giant NRS with Shimano Deore cranks



Reviews 1 - 2 (2 Reviews Total)

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