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Shimano Dura-Ace BB92-41B Press Fit Bottom Bracket
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Shimano Dura-Ace BB92-41B Press Fit Bottom Bracket

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Mfg PartNum: ISMBB9241B
(9 customer reviews)
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$36.99
MSRP: $36.99
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Description

Speed is in the details.

Shimano spared no detail when redesigning their Dura-Ace group, and the BB86/BB92 compatible press-fit bottom bracket got the star treatment as well. Compared to previous versions, it's both lighter and more efficient, while remaining an industry leader in weather resistance and durability.

Slightly smaller bearings allow for more efficient rolling while furthering weight reduction, and updated seals drop resistance by a claimed 50%, reducing effort required throughout the pedal stroke with no sacrifice in weather resistance.

The Shimano Dura-Ace BB92-41B Press Fit Bottom Bracket is compatible with BB86 / BB92 bottom bracket shells with 86.5 mm / 91.5 mm widths and 41 mm inner shell diameters. Compatible with the 24 mm spindles found on Hollowtech II cranks.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Specifications

 

Bottom Bracket STD: PF24 

 

Mfg PartNum: ISMBB9241B 

 

Bottom Bracket Type: Shimano (24mm) 

 

Frame Interface: BB86/92 

 

Shell Diameter: 41 

Reviews

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Just what I needed to install a Shimano crank on my gravel bike.
by Jon B.
Cycling Enthusiast
Maryland, USA

My new gravel bike came with a GRX groupset, except the crankset. I also use shorter crank arms so I decided to get a GRX crankset in the correct size. I needed this BB to make the change, worked perfectly! Staff was great and new exactly what I needed when I explained my project.

Reviewed 2/22/2024
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great quality and value
by Charlie Allnut
Cycling Enthusiast
Litchfield hills, CT

I bought this as a replacement for one with 16,000 miles of year-round riding in NW CT but I haven't installed it yet because the old one is still quiet and smooth.

It's kind of unreal how durable these are.

I spray enough water to rinse off road salt and grit and that's about it for maintenance.

Reviewed 4/19/2023
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Perfect!!!
by djhwang1130
Cycling Enthusiast
Irvine, CA

No issue for my bike

Reviewed 6/20/2022
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Best Budget BB
by Anonymous
SF,CA

If you're on a budget build this is probably your best deal. The BB works great. Although I won't need to, I will probably upgrade within the year.

Reviewed 5/9/2020
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If you are trying to pressfit into a BB86 bottom bracket for a Shimano Hollowtech ROAD cranks, this is the right part
by geraldthai
Casual Cyclist
Sugar Land, Texas
1 of 1 customers found this review helpful.

If installed correctly you get the best of what Dura Ace offer, total performance in pedaling. Note well that the left and right bearing cups are not labeled LR, and are weighed the same so if you get them mixed up good luck sleeping at night. The orientation is printed on the inner core sleeve. One must assume that the packaging is vigorously QA from factory to the day you get it in your hands. 41A is the MTB version.

Reviewed 8/16/2019
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Great price for a great BB
by NolaDwight
New Orleans

Super smooth easy to install

Reviewed 12/30/2021
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Set and forget.
by Steve F.
Saugus

I upgraded to Ultegra so of course I wanted to switch out the bottom bracket. I honestly can't say whether or not this improves performance over the old version but it certainly does not hinder it. I would have love to buy a Ceramic Speed or Chris King bottom bracket but for the price it's hard to beat this one.

Reviewed 5/23/2019
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Works as advertised...
by Anonymous
Cycling Enthusiast
Vancouver, WA

I have two Scott frames and both use this Bottom Bracket. I've been using this model for over a couple years without issues. Seems to hold up well.

Reviewed 9/13/2021
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Perfect fit for BB86 frame
by PedalPower
Cycling Enthusiast
Northern California
3 of 3 customers found this review helpful.

The bottom bracket fit perfectly in my BB86 frame. Weighs 54.7 grams on my scale with all the green grease Shimano loaded it up with. Total width about 90mm, diameter that enters frame 41mm, interior diameter 24mm (fits newer Shimano road spindles).

Reviewed 1/16/2018
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