Enduro BK-6036 BSA68/73 Bottom Bracket
Enduro BK-6036 BSA68/73 Bottom Bracket
Low stock: 2 left
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SKU: SKU: BK-6036
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🧡 Why Riders buy from us
🧡 Why Riders buy from us
Orders are packed ASAP
Most orders are packed and dispatched within an hour. Submit your order before noon PST on weekdays and it'll ship out the same day!
Genuine quality
We source all our products from reputable brands. Our bearings feature: dual lip seals, full complement MAX bearings for pivots, waterproof marine grease for superb wet weather protection and more!
Support the little guy
We work hard to make bike maintenance as easy as possible. As a small team, any show of support means a lot to us! Please tell a friend, leave a review and give us a follow on Instagram.
Professional support
Need help? Have questions? Check out our FAQs or send us a message - We respond quickly and have a boatload of bike repair and product compatibility experience!
60-day returns
We offer free exchanges and hassle free returns! Start an exchange.
✅ Compatible with
✅ Compatible with
Compatible with bikes that have BSA68/73 threaded bottom bracket shells and most Shimano Hollowtech II cranks.
📦 What's included
📦 What's included
(Complete Bottom Bracket)
Features:
- ABEC-3 Black-Oxide (BO) coated bearings
- Grade 10 balls
- USA-made aluminum cups
- LLB Seals
- 90% fill high-pressure, water-proof grease
Includes a selection of spacers to precisely tune your chain-line & install your Shimano crankset.
Enduro BK-6036 BSA68/73 Bottom Bracket
BSA Thread-In, Black-Oxide, ABEC-3, Bottom Bracket for BSA framesets and Shimano (24mm) Cranksets.
This complete bottom bracket includes ABEC-3 radial bearings in USA-made, precision-machined aluminum cups that thread directly into the BB shell, along with a machined aluminum center sleeve and seals to protect the bearings from the elements, and selection of spacers to allow you to precisely tune your chain-line.
These high quality replacement bottom brackets made by Enduro feature ABEC-3 bearings with:
- Grade 10 Balls
- Anti-corrosion Black Oxide/Magnetite treatment which provides an extra level of corrosion resistance and extended worry-free performance.
- LLB seals
- 90% fill water-proof grease
- Deeper grooves to accommodate the largest balls possible, providing maximum bearing contact area and greatly increased bearing life.

Product FAQs
How do I choose the right bottom bracket for my bike?
To find bottom brackets that are compatible with your specific bike model, click here or use the search bar at the top (type in your bike's brand, model, year and the words "bottom bracket"). Next, select your bike's crankset type and choose your desired bottom bracket quality. Each bottom bracket should fit your frame and crank standard and meet or beat factory specs. No measuring, no guessing — spend less time working, and more time riding! If you don’t see a bottom bracket kit for your bike here, send us a message with your bike's details and we'll do our best to provide one.
How do I know if my bottom bracket needs replacing?
Listen for creaking, clicking, or grinding while pedaling—these are common signs of worn bearings in modern MTBs. Check for crank wobble by holding them and moving side-to-side, or feel for rough spinning without the chain. Replacing early keeps your ride smooth and prevents bigger issues, and our replacement kits make sourcing the correct bearings as easy as ever!
What are the different types of bottom brackets?
These days, you'll typically find that bottom bracket shells on frames are threaded types (like BSA) or press-fit (like PF92, BB30 or PF30) for lighter carbon setups. Bottom Brackets must also fit a specific crankset spindle standard (24mm, 30mm, DUB (29mm), GXP (22/24mm) etc.) Some of the most popular standards are SRAM DUB and Shimano Hollowtech II. We simplified things by offering the most compatible options for your specific bike model paired with your crank type here
How do I install my bottom bracket?
We recommend bottom brackets be replaced by a trained professional (hint: contact your local bike shop). For those who are experienced, we stock BB tools like sockets, wrenches and presses. Follow your bike manual, tool or part manufacturer's installation guide and torque to spec. For questions about tool compatibility, reach out to us via contact form and we'll get back to you promptly!
— Maintenance made easy —