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.

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.

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.

Desertcart Logo

Deliver to Ukraine

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Description

🚴‍♂️ Ride Smooth, Ride Fast — The Bottom Bracket Pros Trust

ROCK SOLID FIT - English-threaded BSA shell ensures a secure, maintenance-friendly installation every time.
BUILT TO ENDURE - Sealed cartridge bearings protect against weather and wear, extending your ride’s reliability.
LIGHTWEIGHT DURABLE - At just 0.2 kg, this bottom bracket balances featherlight weight with robust construction.
PRO LEVEL COMPATIBILITY - Optimized for Shimano Dura-Ace Hollowtech II cranks, the choice of cycling elites.
EFFORTLESS POWER TRANSFER - Experience ultra-smooth crank rotation with low friction bearings designed for peak road performance.

The Shimano Dura-Ace BB-R9100 Bottom Bracket is a precision-engineered, BSA threaded component designed for road cyclists seeking seamless power transfer and durability. Featuring sealed cartridge bearings and compatibility with Hollowtech II cranks, it delivers low friction and long-lasting performance in a lightweight package.

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

11287₴

Duties & taxes incl.

Ukrainestore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

ChatGPT - opens in a new tab Perplexity - opens in a new tab Claude - opens in a new tab Grok - opens in a new tab Google AI - opens in a new tab

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

View all Trustpilot reviews

Color	Black
Size	68/English
League	Shimano
Team	Shimano
Length	11.4 centimeters
Weight	0.2 Kilograms
Material Type	Plastic
Number of Items	1
Sport	Cycling
Wattage	125 watts
Included Components	1 x Shimano BB-R9100 Dura-Ace Bottom Bracket, 68 mm Width
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

ShimanoDura-Ace Bb-R9100 Bottom Bracket

Description

Specifications

Have a Question? See What Others Asked

Common Questions