SHIMANOBB-R9100 Dura-Ace HollowTech II bearing cups - 68 mm English thread

SHIMANOBB-R9100 Dura-Ace HollowTech II bearing cups - 68 mm English thread

Q: Is this compatible with my current bb 'shimano dura-ace 9000 bottom bracket sm-bb9000'?

It should. I upgraded from 9000 to 9100 without any issues.

Q: mine has alot of drag, what should I do??

Probably put too much torque on that plastic end cap on the non drive side. That is not really holding anything on it is just there to adjust tension on the crank/BB interface. Loosen the 5mm pinch bolts on the non-drive arm, back off the plastic nut/cap 1/2 a turn, give the cranks a little tap with a plastic mallet on each side to center them, then re-torque the 5mm pinch bolts. If you still have drag repeat process and back it off another 1/2 turn.

Q: will this replace shimano UN55 68x122.5 ?

A un 55 is a square taper bottom bracket. The Dura ace is for cranks where the axel is mounted to the crank. If you have the correct version of the Shimano crank I assume it would fit. If you are going to use your existing crankset, then no.

4.5/5

Product ID: 68317908

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📏68 mm English thread

⚙️Advanced seal tech

🚴‍♂️Optimized for cycling

Frequently Bought Together

SHIMANOROAD Bottom Bracket 86,5mm Press FIT Black

Shimano M5100 Deore Crankset, For Rear 10/11-SPEED, 170mm, 30T W/O CG, W/O BB PARTS, FOR CHAIN LINE 52MM

Description

🚴‍♀️ Elevate Your Ride with Shimano's Precision!

UNIVERSAL FIT - Designed to fit standard 68 mm English threads effortlessly.
DURABLE QUALITY - Built to last, making it a reliable choice for your bike.
LIGHTWEIGHT DESIGN - Weighing in at just 0.2 kg, it won't weigh you down.
SMOOTH PERFORMANCE - Experience seamless rotation with advanced seal construction.
PRECISION ENGINEERING - Crafted for the serious cyclist, ensuring top-tier performance.

The Shimano BB-R9100 Dura-Ace HollowTech II bearing cups are engineered for optimal cycling performance, featuring advanced seal construction for smoother rotation. Weighing only 0.2 kg and designed for standard 68 mm English threads, these high-quality components are a must-have for serious cyclists looking to enhance their ride.

Specifications

Color	Standard
Size	One
Item display length	11.4 centimetres
Weight	0.2 Kilograms
Material type	Other
Number of items	1
Sport	Cycling
Wattage	125 watts
Included components	Bike Parts
Batteries included?	No
Brand	SHIMANO
Department	Unisex
Manufacturer	Shimano
Item model number	IBBR9100B
Product Dimensions	1 x 1 x 1 cm; 113.4 g
ASIN	B01ID3PO1U

Have a Question? See What Others Asked

Is this compatible with my current bb 'shimano dura-ace 9000 bottom bracket sm-bb9000'?

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mine has alot of drag, what should I do??

will this replace shimano UN55 68x122.5 ?

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