SHIMANO - Bottom Bracket - Threaded - HOLLOWTECH II - 68/73 mm shell width
With better sealing and rotation the SHIMANO DEORE bottom bracket delivers high driving efficiency.
• Better sealing performance
• MODEL NO SM-BB52
• SERIES DEORE M610 Series
• HOLLOWTECH II bottom bracket_Threaded bottom bracket type ✔
• Threaded bottom bracket shell width (mm)_68 ✔
• Threaded bottom bracket shell width (mm)_73 ✔
Shimano Iron Works, the predecessor of Shimano Inc., was established in 1921 by Shozaburo Shimano in Sakai city, Osaka Japan. The first production was the bicycle single freewheel, required the greatest technical skill to produce. In 1951, the company’s name changed to Shimano Industrial Co., LTD.
We established Shimano American Corporation (current Shimano North America Holding, Inc.) as the first overseas sales office in 1965, while on the other hand Shimano Singapore Pte. Ltd. as the first overseas manufacturing base in 1973. In 1991, company name is changed to Shimano Inc. Currently we have expanded our networks worldwide with consolidated subsidiaries.
Since Shimano’s founding, Headquarters have remained in Sakai, the city of Shimano’s birthplace. Shimano Inc. is headquarters and has a wide range of functions, including planning, development, design, manufacturing, and various other support functions for supplying bicycle components, fishing tackle and rowing equipment.
Shipping & Returns
All orders and products ship from our locally owned warehouse in Woodend, Victoria, Australia.
Free Shipping
All orders over $59 AUD are offered free standard postage through Australia Post, with additional options to upgrade to Express carrier services at the checkout. We use Australia Post as our carrier of choice for both domestic and international orders.
Bulky shipments, like framesets and/or wheels ship via StarTrack Express for domestic orders, or FedEx for international orders.
Same Day Dispatch
Place your order before 1 pm AEST and your order will leave our Woodend warehouse the same business day. Orders placed after 1 pm aren’t guaranteed to leave same day, however, we’ll always endeavour to get orders packed before our daily AusPost collection.
Returns & Exchanges
We understand that sometimes your purchase may need to be exchanged and that’s why we offer free 30-day returns. Our team is always here to help, so please do not hesitate to reach out first with any questions or queries. For further information, see our returns policy here.
Shipping & Returns
All orders and products ship from our locally owned warehouse in Woodend, Victoria, Australia.
Free Shipping
All orders over $59 AUD are offered free standard postage through Australia Post, with additional options to upgrade to Express carrier services at the checkout. We use Australia Post as our carrier of choice for both domestic and international orders.
Bulky shipments, like framesets and/or wheels ship via StarTrack Express for domestic orders, or FedEx for international orders.
Same Day Dispatch
Place your order before 1 pm AEST and your order will leave our Woodend warehouse the same business day. Orders placed after 1 pm aren’t guaranteed to leave same day, however, we’ll always endeavour to get orders packed before our daily AusPost collection.
Returns & Exchanges
We understand that sometimes your purchase may need to be exchanged and that’s why we offer free 30-day returns. Our team is always here to help, so please do not hesitate to reach out first with any questions or queries. For further information, see our returns policy here.
Why Acium
Acium, ("Ace i e um") might have started as a spelling error that stuck but once it became our business name it came to represent our passion as riders through our journey to curate products that align with our love for cycling upgrades. We want to bring you products that add value to your riding and be a business that raises the bar on what you expect.
The Acium Standard
We don’t list new brands until we’ve tried, tested it ourselves. We have high standards for our gear. Our commitment is bringing you the product and experience packaged, delivered and supported as if were our own new bike day. We know you’ve thought long & hard about it, and we want to overdeliver (Just looks at James' new TIME ADHX on our blog to see how much we love the gear we sell).
Rider Curated & Supported
Like you, we ride (or sometimes ride) because we enjoy the peripheral activities; post-coffee shop brew, club race banter, or retail therapy with new bike gear. When listing our brands, know that we’ve pondered, drooled and thought the same question you may have. As riders, ex pro and self-proclaimed weekend warriors, we have tested and experienced the products we list, making us poised to offer feedback or support based on your current or future cycling aspirations. We are not just an online bike store this is the part of the day where we try and repay our staff purchases off internally.
Why Acium
Acium, ("Ace i e um") might have started as a spelling error that stuck but once it became our business name it came to represent our passion as riders through our journey to curate products that align with our love for cycling upgrades. We want to bring you products that add value to your riding and be a business that raises the bar on what you expect.
The Acium Standard
We don’t list new brands until we’ve tried, tested it ourselves. We have high standards for our gear. Our commitment is bringing you the product and experience packaged, delivered and supported as if were our own new bike day. We know you’ve thought long & hard about it, and we want to overdeliver (Just looks at James' new TIME ADHX on our blog to see how much we love the gear we sell).
Rider Curated & Supported
Like you, we ride (or sometimes ride) because we enjoy the peripheral activities; post-coffee shop brew, club race banter, or retail therapy with new bike gear. When listing our brands, know that we’ve pondered, drooled and thought the same question you may have. As riders, ex pro and self-proclaimed weekend warriors, we have tested and experienced the products we list, making us poised to offer feedback or support based on your current or future cycling aspirations. We are not just an online bike store this is the part of the day where we try and repay our staff purchases off internally.
In Stock, Means In Stock
Like you, we like to shop online and have been let down countless times after placing an order only be told that the product must be ordered from a supplier. We hate that. It can mean lost weekends of riding or ruined holidays because critical parts haven’t arrived, even if you ordered them with plenty of time.
If a product is available for purchase online at Acium Sports, it is in stock and ready for dispatch from our local warehouse with no added waits to get your purchase to you.
Use our stock availability counter on the 'add to cart' section of the product to find out how many of that product(s) we have left in our warehouse.
In Stock, Means In Stock
Like you, we like to shop online and have been let down countless times after placing an order only be told that the product must be ordered from a supplier. We hate that. It can mean lost weekends of riding or ruined holidays because critical parts haven’t arrived, even if you ordered them with plenty of time.
If a product is available for purchase online at Acium Sports, it is in stock and ready for dispatch from our local warehouse with no added waits to get your purchase to you.
Use our stock availability counter on the 'add to cart' section of the product to find out how many of that product(s) we have left in our warehouse.
