Shimano SM-BB52 Deore 2-Piece Bottom Bracket -

Shimano SM-BB52 Deore 2-Piece Bottom Bracket



Regular price Rs. 1,050.00
Tax included. Shipping calculated at checkout.


The Shimano Deore / Alivio bottom bracket SM-BB52 can be found again and again

The SM-BB52 is a popular Shimano bottom bracket, which is used in countless cranks such as Alivio, Deore and ZEE. Its 24 mm Hollowtech II standard bearings deliver an optimal stiffness-to-weight ratio and rotational efficiency. The SM-BB52 BSA bottom bracket is available in a version for 68 and 73 mm shell width and in a version for 83 mm shell width.


Application: All Mountain, City & Touring, Enduro, Downhill
Type: BSA
Shell Width: 68 mm / 73 mm, 83 mm
Axle Diameter: 24 mm (Hollowtech II)

Technical Information:

Bearings: Steel
Bottom Bracket Cup Material: aluminium
Bottom Bracket Centre Tube Material: synthetic resin


Recommended for:
- ZEE FC-M640, FC-M645
- Deore FC-M591, FC-T611, FC-M610, FC-M612, FC-M615, FC-M617, FC-M6000, FC-T6010, FC-M4100, FC-M5100, FC-M6100, FC-M6120, FC-M6130
- Alivio FC-M4050, FC-M4060, FC-T4060
- FC-M552-L, FC-M552-S, FC-M622, FC-M625, FC-M627
- FC-MT200, FC-MT500, FC-MT510, FC-MT511, FC-MT610
- FC-T551


- painted bearing cups
- high drivetrain efficiency
- improved sealing and smoother movement


Hollowtech II
Shimano Hollowtech II is a crank bottom bracket system designed to achieve an ideal ratio of stiffness, weight and rotational efficiency. It is based on an integration of the bottom bracket and the right crank arm and works with a 24 mm axle or bearing diameter, which has proven to be optimal in terms of stability. In many cases, the bearing cups are on the outside so that the load is better distributed. High-quality precision seals ensure a long service life.


Shell Width: 68 mm / 73 mm
Manufacturer Part Number: ESMBB52B

BSA 83:
Shell Width: 83 mm
Manufacturer Part Number: ESMBB52D


- 1 x Shimano SM-BB52 right bearing cup, with bearings
- 1 x Shimano SM-BB52 left bearing cup, with bearings
- 1 x Shimano bottom bracket sleeve
- 3 x spacer

IN SHORT: Raise return/exchange request within 7 days of receiving the item. In case of item looking used or wrong item sent, please raise the issue on the same day by email or maximum early next day. After 7 days we cannot help with the issue of "item looks used."

We process returns/refunds for defective/ wrong items received.

For size issues there are no returns/refunds, just exchanges. Exchanges are not promised (to avoid policy abuse) but we generally help, and issue store credit if your correct size is not available with us. Items returned must be sent to us in unused, unworn condition with original packaging, tags 100% intact.


No returns on Bike sales for size issues

PRE-ORDER Cancellation will incur 4% cancellation fee.

Cancellation without reason by the customer will also incur 4% cancellation fee.

Visit RETURNS CENTER to submit your request

Please read detailed policy below to be fully informed:

For any issues

  • Check if your item is eligible for return/exchange. All details are in this policy.
  • Email at within 7 days of receiving your item.
  • Please mention your order number in the email, and state the issue.
  • Add photographs of the issue, to best highlight the problem.

Returns and refunds are eligible if

  • The Item was received in a defective/ damaged condition
  • Wrong item delivered

A product may vary slightly in colour from the image shown on the website.

Size exchanges

  • We will exchange sizes for you if the item ordered and received differs from the size chart shown on the website for that item at the time of ordering.
  • Please consult the size chart carefully before buying a product. S, M, L, XL sizing differs brand to brand, match the cm and inches.
  • Take help from the Cyclop team in finding your size, use the chat box on the site.
  • If the item does not fit you for any other reason and you want to exchange it, we will help you at discretion. We generally issue store credit if the exchange size is not available.

Returns/ exchanges will be processed only

  • If the product is unused/unworn
  • In original packaging with tags, manuals, packaging intact (not torn or ripped)
  • If sent with proof of purchase – receipt/ invoice
  • Returned with promotional items sent with the product

Due to hygiene reasons, we will not accept returns/exchanges of jerseys, shoes that appear even slightly used. Intimate-use items like cycling shorts, socks will not be returned/exchanged.

Shipping charges for return/ exchange

  • For defective/damaged/wrong items we will ship back the item at no cost to you.
  • For size returns you are required to ship the item to us with charges borne by you.
  • Original shipping charges are non-refundable.

A customer may exchange a product once.

No returns/ refunds/ exchanges for clearance items.

All returns/exchanges must be agreed with the Cyclop team on email before any related shipping is done.



If you report an issue, 7 days after receiving the item, it will be treated as a warranty issue. You are required to contact the brand directly then, or connect with their official representatives in India for direct resolution of the problem.


In general, our team helps customers get the item they are happy with, we assist in genuine cases for return/exchange with the goal to make customer experiences great.

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