Enduro Bearings ACB 4545 150 SS Stainless - ReEvolution
Enduro Bearings ACB 4545 150 SS Stainless - ReEvolution
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Enduro Bearings ACB 4545 150 Stainless Steel

S$56.50
S$56.50
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Description
Description
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Enduro ACB 4545 150 Stainless Steel brings premium 440C corrosion protection and angular-contact precision to your 1-1/2 headset, built to shrug off mud, rain, and everything the trail throws at it.

If you're tired of swapping out headset bearings every time the season gets wet, the Enduro ACB 4545 150 Stainless Steel is the upgrade your front end deserves. This is a 1-1/2 angular-contact headset bearing built from 440C stainless steel balls and races, measuring 40mm x 51.8mm x 7mm with 45x45 degree contact angles. The slightly smaller 51.8mm OD is the key detail here: it's designed to fit the tighter lower bearing seats found in some framesets where a standard ACB 4545 150 won't quite seat correctly.

Not all stainless is created equal, and Enduro leans hard into that point. They spec 440C specifically because it carries the highest strength, hardness, and wear resistance of the entire 440-series family, achieved through special heat treatment and cryogenic treatment. Pair that with LLB-type seals, Almagard 3752 grease, and a bearing cavity that's 90% packed with high-pressure waterproof grease, and you've got a bearing that treats mud, creek crossings, and post-ride hose-downs as a non-event.

The angular-contact geometry does the heavy lifting on longevity. Every single ball engages evenly under load, spreading force across a larger surface area to minimize wear and maximize bearing life. At 24g and a static load rating of 977lbf / 4.34kN, this is a serious piece of kit that punches well above its weight class.

Why You'll Like It

You'll feel the difference every time you rail a corner or muscle through a tech section, knowing your headset is running smooth and corrosion-free no matter how ugly the conditions get. If your frame has a tighter lower bearing seat that swallows standard bearings incorrectly, this bearing's 51.8mm OD is exactly what you've been hunting for. Enduro's 440C stainless construction means sweat, sports drink spills, and week-long rain rides are no longer a bearing's worst nightmare.

Key Features

  • 440C stainless steel balls and races, the highest-strength and most corrosion-resistant alloy in the 440-series, treated with special heat and cryogenic processes for superior mechanical properties
  • Slightly smaller 51.8mm OD fits tighter lower bearing seats found in some framesets where the standard ACB 4545 150 won't seat properly
  • Angular-contact design (45x45 deg) engages all balls evenly under load, spreading force over a larger surface area to reduce wear and extend bearing life
  • LLB-type dual-lip labyrinth seals and Almagard 3752 waterproof grease, with the bearing cavity 90% filled for maximum protection against mud, rain, and sweat
  • Static load rating of 977lbf / 4.34kN at a featherweight 24g. This size bearing is also known in the bike industry by these part numbers: HSS011, BAA0695K, TH-070, MR-128, MH-P16, MH-P28
Returns & Refunds
Returns & Refunds
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At a glance

  • Returns accepted within 30 days of purchase
  • Items must be unused, in original packaging, with a receipt or proof of purchase
  • Apparel and shoes can't be returned once shipped
  • Sale items can't be refunded
  • Return shipping is paid by the customer and is non-refundable

Returns

Our returns policy lasts 30 days. If more than 30 days have passed since your purchase, we're unable to offer a refund or exchange. Apparel and shoes are not eligible for return once they have been shipped out.

We accept returns if the item is eligible for a warranty claim or if the wrong item was shipped to you. To be eligible, your item must be unused, in the same condition you received it, and in its original packaging. A receipt or proof of purchase is required.

Please do not send your purchase back to the manufacturer. Once your return is received and inspected, we'll email you to confirm.

Sale items

Only regular-priced items can be refunded. Sale items cannot be refunded.

Exchanges

We replace items only if they are defective or damaged. To exchange an item for the same one, email us at info@reevolution.sg and send the item to 16 Morse Road, #01-209, Singapore 099228.

How to return an item

  1. Email us at info@reevolution.sg with your order details.
  2. Bring or mail the item to 16 Morse Road, #01-209, Singapore 099228.
  3. We'll inspect your item and email you once it's received.

You are responsible for the cost of return shipping, and shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from it. For valuable items, we recommend a trackable shipping service or shipping insurance, as we can't be responsible for returns we don't receive.

Refunds

Once your return is received, inspected and approved, your refund will be processed to your credit card or original method of payment. A refund will also be issued if an item turns out to be out of stock after your order is placed. How long it takes to appear depends on your bank or card provider.

Late or missing refunds

If you haven't received your refund yet:

  1. Check your bank account again.
  2. Contact your credit card company, as it may take some time before the refund is officially posted.
  3. Contact your bank. There is often some processing time before a refund is posted.

If you've done all of this and still haven't received your refund, please get in touch.

Contact us

Shipping & Return
Shipping & Return
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Free standard delivery on orders SGD 80 and above within Singapore.

Delivery within Singapore

Delivery optionOrders below SGD 80SGD 80 and aboveDelivery time
In-store pickupFreeFreeCollect in store
Standard deliverySGD 5Free4–7 working days
Express deliverySGD 20SGD 20Next working day

In-store pickup

Collect your order from our store at 16 Morse Road, #01-209, Singapore 099228.
Monday to Friday: 11.30am – 7pm
Saturday: 11.30am – 6pm

Overseas shipping

We ship overseas on request. Contact us with your address and the items you'd like, and we'll send you a shipping quote.

Request a shipping quote

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