Shimano Ultegra SM-BB71-41B Press-Fit Road Bottom Bracket

Efficient and Durable Bottom Bracket for Press-Fit Frames

Precision Fit
Lightweight and Durable
Optimized for Older Systems

₹1,760

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Size

86.5mm

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The Shimano Ultegra SM-BB71-41B Press-Fit Bottom Bracket is engineered for seamless integration with a wide range of Shimano groupsets, including Ultegra, 105, Tiagra, and RS500 cranksets. It’s the perfect choice for road, cyclocross, and equivalent bikes.

Precision Fit for Performance: Designed for frames with an 86.5 mm case width, this bottom bracket supports Hollowtech II cranksets with a 24 mm axle. Its press-fit installation ensures a secure connection and optimized power transfer for efficient cycling.

Lightweight and Durable Construction: Crafted from high-quality synthetic materials, the SM-BB71-41B is lightweight yet robust. Its black bearing cups are designed to deliver smooth operation and longevity, even under demanding conditions.

Enhanced for Older Systems: Ideal for older 10-speed road and cyclocross setups, this bottom bracket provides reliable performance and smooth crank rotation, breathing new life into your bike.

With Shimano’s trusted engineering, the SM-BB71-41B offers consistent, high-performance operation, making it a valuable upgrade for cyclists seeking durability and efficiency on every ride.

Specifications

Series	Shimano
Model No	SM-BB71-41B
Hollowtech II Bottom Bracket\|Press-Fit Type: Yes

Press-Fit Bottom Bracket Shell Width (mm): 86.5
Adapter Material	Resin
Average Weight (g)	71

Features

Precision Fit: Designed for 86.5 mm frame shells and compatible with Hollowtech II cranksets with a 24 mm axle.
Lightweight and Durable: Made from high-quality synthetic materials for longevity and smooth operation.
Optimized for Older Systems: Perfect for 10-speed road and cyclocross setups, ensuring smooth crank rotation and reliable performance.

Technologies

Hollowtech II: Enhances power transfer with a lightweight, rigid crankset design. Features outboard bearings for improved stability and efficiency.
High-Precision Sealing: Maintains durability and rotating performance over long periods.
Press-Fit Bottom Bracket: Provides a secure connection with wide-placed bearings for efficient power transfer.

Fit and sizing

Fit: Press-fit

Between sizes? from your measurements.

Warranty and support

Shimano Bicycle Components Warranty: Shimano warrants to the original owner that Shimano-branded bicycle components, including STEPS Drive Units and Wheels, are free from defects in materials and workmanship for a period of 2 years. DURA-ACE and XTR components, including DURA-ACE and XTR wheels, are covered for 3 years from the date of original purchase.

Shimano Footwear and Soft Goods Warranty: Shimano footwear and soft goods are covered for 1 year against defects in materials and workmanship.

Lazer Products Warranty: Lazer products are warranted against defects in materials and workmanship for 1 year from the date of purchase.

PRO Products Warranty: PRO branded products are warranted for 2 years against defects in materials and workmanship under normal conditions. Additionally, handlebars, stems, and seat posts from the model year 2017 onwards are covered for 10 years from the date of original purchase.

Wheel Warranty: Shimano warrants all wheels to be free from defects in materials and workmanship. DURA-ACE and XTR wheels are covered for 3 years, while all other wheels are covered for 2 years. Normal wear and tear parts such as bearings, spokes, and braking surfaces are not covered under warranty.

Exclusions: This warranty does not cover:

Products modified, poorly maintained, or used improperly.
Damage resulting from accidents, abuse, or improper assembly.
Wear and tear parts such as bearings, seals, free hubs, and decals.
Damage due to unauthorized repairs or modifications.
Cosmetic damage, including deterioration of the surface finish or appearance.

For any warranty claims, please contact us directly, and we will assist you with the process.

Questions after delivery? Ask TBA Guide or WhatsApp us.

Shipping and returns

We ship across India. Shipping is free on orders above ₹2,000 and ₹99 below that. Cash on delivery is available on orders up to ₹20,000, with a COD charge that depends on the order value. For a delivery estimate, enter your pincode in the box above the add-to-cart button: it shows the courier's own estimate for your address, not a promised date. If a parcel is held up we chase the courier until it is delivered. Full shipping policy

Most Shimano products take a little longer to ship.

Returns can be started within 7 days of delivery on unused items in their original condition with all tags and packaging. Apparel, helmets, gloves and similar items are returnable; wetsuits and products discounted by more than 5% are not. Compatibility questions are not grounds for a return unless our listing was wrong, so ask us before you order if you are unsure. Return shipping is arranged by you; on an accepted return you can choose an exchange, store credit or a refund after shipping and transaction charges. Orders can be cancelled only until they are processed. Full return and refund policy