Shimano Deore SM-BB52 2-Piece Bottom Bracket

Durable bottom bracket with advanced sealing for HollowTech II

Sealed for Longevity
Smooth Power Transfer
HollowTech II Crankset Compatible

₹1,350

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Size

83mm

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The Shimano Deore SM-BB52 Bottom Bracket is built for durability and consistent performance, offering a significant upgrade in sealing compared to previous generations. Designed for HollowTech II cranksets, it ensures smooth rotation even in demanding conditions.

Built to Withstand the Elements: This bottom bracket is engineered with improved sealing technology that effectively keeps out dirt, mud and moisture. Whether you're riding through rain, gravel, or trail debris, the SM-BB52 provides reliable protection to extend component life.

Smooth Rotation with HollowTech II Compatibility: Its precision bearing system ensures minimal resistance and friction, delivering efficient pedaling and consistent power transfer. Optimized for 24mm spindles, it works seamlessly with Shimano HollowTech II cranksets for both MTB and trekking setups.

Rugged Construction for Demanding Use: The right and left BSA threaded adapters are built to fit securely into frames with 83mm hanger width. With durable construction and robust internals, this bottom bracket is a dependable foundation for aggressive trail riding or daily commuting.

Designed for performance and longevity, the Shimano Deore SM-BB52 Bottom Bracket is a great choice for riders who demand more from their drivetrain.

Specifications

Model No	SM-BB52
Series	Shimano
HollowTech II Bottom Bracket\|Threaded Type: Yes
Threaded Bottom Bracket Shell Width	68 mm, 73 mm

Adapter\|Material	Aluminum
Adapter\|Finish	Painted
Spacer\|Material	Resin

Features

Sealed for Longevity: Enhanced sealing technology keeps out mud, dust and moisture, extending the life of your drivetrain.
Smooth Power Transfer: High-quality bearings and minimal friction provide efficient rotation and consistent pedaling response.
HollowTech II Crankset Compatible: Works seamlessly with 24 mm spindle cranksets, ideal for MTB and trekking performance.
Threaded BSA Fit: Right and left aluminum adapters securely install into 68 mm or 73 mm BSA threaded frames.
Complete Setup Included: Comes with spacers, inner cover and necessary hardware for a hassle-free, ready-to-ride installation.

Technology

HollowTech II: Combines a hollow crankarm with integrated bottom bracket axle for better stiffness-to-weight balance. Outboard bearings enhance stability and power transfer, while maintaining a sleek, efficient design.
High Precision Sealing: Advanced sealing around the bearings increases durability without sacrificing the smooth rotational feel Shimano is known for.

Fit and sizing

Fit: Threaded

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