Need Help?
(+65) 6272 2629


Free local shipping on orders over $60
Couldn't load pickup availability
Not all stainless steel is created equal, and Enduro Bearings built the ACB 3645 3344 SS to prove it. This 1-1/8 angular contact headset bearing uses 440C stainless steel balls and races throughout, which sits at the top of the 440-series lineup with the highest strength, hardness, and wear resistance of the bunch. It takes special heat treatment and cryogenic treatment to get there, but the result is a bearing that shrugs off corrosion in the kind of conditions that chew through lesser hardware.
The angular contact design means all the balls stay engaged under load, spreading force evenly across the bearing instead of piling it onto just a few contact points. Enduro pairs that with the largest balls possible, dual-lip LLB-type seals running in a micro-groove labyrinth, and Almagard 3752 grease packed in at 90% fill. That combination keeps water, mud, and sports drink out and keeps you rolling smooth for the long haul. At just 20g and a static load rating of 935lbf / 4.15kN, this bearing punches well above its weight.
This size bearing is also known in the bike industry by these part numbers: ACB3344H6 and AC3344. If your headset has been eating bearings every season, this is the upgrade that stops that conversation for good.
Wet-weather riders and enduro regulars get a headset bearing that is genuinely built for the worst your local trail can dish out. Your headset stays smooth and precise even after deep mud sections, creek crossings, and post-ride hose-downs that would corrode a standard bearing in a few seasons. The 440C stainless construction, Almagard 3752 grease, and labyrinth seals mean you spend more time riding and less time wrenching.
Our returns policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. Apparels and shoes are not eligible for returns once they have been shipped out. We only accept returns if the item is eligible for a warranty claim or if the wrong item has been shipped to you. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. To complete your return, we require a receipt or proof of purchase. Please do not send your purchase back to the manufacturer. Once your return is received and inspected, we will send you an email to notify you that we have received your returned item.
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at info@reevolution.sg and send your item to: 16 Morse Road, #209, Singapore, 01, 099228, Singapore.
To return your product, you should bring or mail your item to: 16 Morse Road, #209, Singapore 099228. You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund. Depending on where you live, the time it may take for your exchanged product to reach you, may vary. If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We will not be responsible if we do not receive your returned item.
Refunds will only be issued if the item is out of stock after the transaction is made. If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
Our returns policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. Apparels and shoes are not eligible for returns once they have been shipped out. We only accept returns if the item is eligible for a warranty claim or if the wrong item has been shipped to you. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. To complete your return, we require a receipt or proof of purchase. Please do not send your purchase back to the manufacturer. Once your return is received and inspected, we will send you an email to notify you that we have received your returned item.
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at info@reevolution.sg and send your item to: 16 Morse Road, #209, Singapore, 01, 099228, Singapore.
To return your product, you should bring or mail your item to: 16 Morse Road, #209, Singapore 099228. You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund. Depending on where you live, the time it may take for your exchanged product to reach you, may vary. If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We will not be responsible if we do not receive your returned item.
Refunds will only be issued if the item is out of stock after the transaction is made. If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund yet, please contact us.
| Delivery Option | Below $80 | $80 and above | Delivery Time |
| In Store Pickup | Free | Free | - |
| Standard Delivery | $5 | Free | 4-7 working days |
| Express Delivery | $20 | $20 | Next Working Day |
We ship worldwide using DHL Global Express. Simply enter your shipping address at checkout and you will receive the shipping quote.
Thanks for subscribing!
This email has been registered!