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Enduro only uses 440C stainless steel balls and races to provide long life and superior corrosion resistance in applications and environments that may be less than ideal.
Enduro only uses 440C stainless steel balls and races to provide long life and superior corrosion resistance in applications and environments that may be less than ideal.
Enduro Bearings

Enduro 440C Stainless Steel 49mm Headset Bearing

£35.73 £38.99 8% off
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Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Fair, No Quibble Returns

If you are unhappy with your item, please let us know, And we will try our best to reolve the issue. Our Returns Policy gives you 30 days to return or exchange an item bought with a valid receipt.

Your statutory rights are not affected by our Returns Policy. To the extent that any provision in our Returns Policy conflicts with your statutory rights, your statutory rights will prevail and the particular offending provision in our Returns Policy will be deemed inapplicable.

Returns (refunds and exchanges)

If you are unhappy with your item, please let us know.
Our Returns Policy gives you 30 days to return or exchange an item bought with a valid receipt. If 30 days have gone by since your purchase, we cannot offer you a refund or exchange.
To be eligible for a refund or exchange, goods must be returned in a re-saleable condition. That means your item must be unused and in the same condition that you received it. The item must be in the original packaging and returned with any accessories, labels and “free gifts” or bonus items.
Under the Consumer Rights Act of 2015 you have an early right to reject goods that are unsatisfactory quality, unfit for purpose or not as described, and get a full refund.
But this right is limited to 30 days from the date you took ownership of the goods (this could be the date of purchase or the date the goods were delivered to you - whichever is later).
After the initial 30 days, you can't demand a full refund in the first instance, but you still have the right to a repair or replacement.
Many of our products have warranties, if you think the item is faulty within the warranty term, please contact us by email at
info@ciclisport.com

Exchange (if applicable)

If you would like to exchange for a similar item for example a different size,
Reorder the item you want and we will refund the unwanted item when we receive it.

Shipping

To return your product, please mail your product to:
Cicli Sport
24 Market Street
Moneymore
BT45 7PE.
with your details and reason for returning.
You will be responsible for paying for your own shipping costs for returning your item, unless the item is faulty. Shipping costs are non-refundable. If you are shipping an item over £50, you should consider using a trackable shipping service or purchasing shipping insurance as we cannot guarantee that we will receive your returned item.

Right to cancel

In addition to our Returns Policy, under the Consumer Contracts Regulations of 2014, you have the right to cancel your order up to 14 days from the day you receive your goods if you are an online, mail or telephone order customer. You then have a further 14 days from the date you notify the retailer of your cancellation to return the goods. The refund will include any standard delivery charges paid. You will be responsible for the cost of returning a cancelled order to us.
We will refund to you the price paid for the items and (unless you did not pay for delivery) the delivery charges that you paid up to a maximum amount of the cost of our standard delivery option. You will be refunded to your original method of payment within 14 calendar days of our receipt of the cancelled items or, if earlier, within 14 days from the day we receive proof of return from you. If we do not receive the cancelled items back, we may arrange to collect them from you at your cost.
To exercise your right to cancel, please email info@ciclisport.com

Refunds (if applicable)

Once your returned item is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of your refund.
Your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 calendar days. If you paid for standard delivery of the goods, the cost of standard delivery will also be refunded.
There are certain situations where only partial refunds are granted (if applicable):

  • Any item not in its original condition, which is damaged or missing parts for reasons not due to our error; and
  • Any item that is returned more than 30 days after

Late or missing refunds (if applicable)

If you haven’t received a refund yet,
There is often some processing time before a refund is posted.
Please let us Know contact us at info@ciclisport.com

Enduro 440C Stainless Steel 49mm Headset Bearing

Season:2025

Brand:Enduro Bearings

Code:EB9383

Enduro only uses 440C stainless steel balls and races to provide long life and superior corrosion resistance in applications and environments that may be less than ideal. 440C has the highest strength, hardness, and wear resistance of all the standard 440-series stainless alloys with high carbon content. As expected, it is also the most expensive of the 440 series alloys and requires multiple rounds of heat treatment and cryogenic treatment to achieve its superior mechanical properties. Though stainless steel has 20% less load capacity and is slightly softer than our standard 52100 chromium steel used in most of our bearings, stainless steel is an excellent alternative for use in wet conditions, if you wash your bike often, or where sweat can be a problem. Enduro Bearings also uses LLB type seals and CRC Marine grease in these bearings to additionally water proof against the elements. Enduro 440C stainless headset bearings are the same bearings found in many popular headset brands, including those that carry a 110 year warranty.
  • ABEC: 3
  • Grade: 10
  • Grease: Kyodo Yushi PS-2
37 x 49 x 7mm Inner x Outer x Depth (mm)
Inch Dia:1-3/8”
Angle / Chamfer (Deg): 45 / 45

Please note that 49mm and 49.5mm are different - some Specialized bikes used 49.5mm

Same size as Specialized S102500902 alternative codes P21, or ACB3749
2024 ALLEZ E5 DISC
2024 ALLEZ E5 DISC SPORT
2023 ALLEZ E5 DISC
2023 ALLEZ E5 DISC SPORT
2022 ALLEZ E5
2022 ALLEZ E5 ELITE
2022 ALLEZ E5 SPORT
2021 CRUX COMP
2021 CRUX PRO
2021 CRUX SW FRMSET
2020 ALLEZ E5 ELITE
2020 ALLEZ E5 SPORT
2020 CRUX ELITE
2020 CRUX EXPERT
2020 CRUX SW DI2
2020 CRUX SW FRMSET
2019 CruX E5 Sport
2019 CruX Elite
2019 CruX Expert
2019 Men's Diverge E5 Elite
2019 S-Works CruX
2019 S-Works CruX Frameset
2019 Women's Diverge E5 Elite
2018 CruX E5
2018 CruX Elite X1
2018 CruX Expert X1
2018 CruX Sport
2018 CruX Sport E5
2018 Men's Tarmac SL5 Comp
2018 Men's Tarmac SL5 Comp Disc
2018 Men's Tarmac SL5 Expert DA
2018 S-Works CruX
2018 S-Works CruX Frameset
2018 TARMAC MEN SL5 COMP - WF
2018 TARMAC MEN SL5 COMP DISC - WF
2018 TARMAC MEN SL5 EXPERT DA - WF
2018 Venge Elite
2018 Venge Elite 105
2017 CruX E5
2017 CruX Elite X1
2017 CruX Expert X1
2017 CruX Expert X1
2017 CruX Pro Disc Frameset
2017 CruX Sport E5
2017 Roubaix SL4
2017 Roubaix SL4 Comp Di2
2017 Roubaix SL4 Sport
2017 Roubaix SL4 Sport
2017 S-Works CruX
2017 S-Works CruX
2017 S-Works Tarmac - Torch Edition Frameset
2017 S-Works Tarmac AG Chrome Frameset
2017 S-Works Tarmac Di2
2017 S-Works Tarmac Di2
2017 S-Works Tarmac Di2
2017 S-Works Tarmac Disc Frameset
2017 S-Works Tarmac Disc Frameset
2017 S-Works Tarmac Disc eTap
2017 S-Works Tarmac Dura-Ace
2017 S-Works Tarmac Frameset
2017 S-Works Tarmac Frameset
2017 S-Works Tarmac S-Build Frameset
2017 S-Works Tarmac eTap
2017 S-Works Tarmac eTap 32
2017 Tarmac Comp
2017 Tarmac Comp
2017 Tarmac Comp - Torch Edition
2017 Tarmac Comp Disc
2017 Tarmac Comp Disc
2017 Tarmac Expert
2017 Tarmac Expert Disc
2017 Tarmac Expert eTap
2017 Tarmac Pro Disc Ultegra Di2
2017 Tarmac Pro Frameset
2017 Tarmac Pro Ultegra Di2
2017 Tarmac Sport
2017 Tarmac Sport
2017 Venge Elite
2017 Venge Elite 105
2016 CruX E5
2016 CruX E5 Disc Frameset
2016 CruX E5 Disc Single Frameset
2016 CruX E5 Warranty Replacement Frame
2016 CruX E5 X1
2016 CruX Elite EVO
2016 CruX Elite X1
2016 CruX Expert EVO
2016 CruX Expert Red Disc
2016 CruX Expert X1
2016 CruX Pro Disc Frameset
2016 CruX Pro Race
2016 CruX Pro Race Red Disc
2016 CruX Sport 105
2016 ROUBAIX SL4 SW - WF
2016 Roubaix SL4 Expert
2016 Roubaix SL4 Expert Disc UDi2
2016 Roubaix SL4 Expert Euro
2016 Roubaix SL4 Pro Disc
2016 Roubaix SL4 Pro Disc
2016 Roubaix SL4 Pro Disc Frameset
2016 Roubaix SL4 Pro Disc Race UDi2
2016 Roubaix SL4 Pro Race
2016 S-Build S-Works Roubaix Disc Frameset
2016 S-Build S-Works Tarmac Disc Frameset
2016 S-Build S-Works Tarmac Frameset
2016 S-Works CruX
2016 S-Works CruX Disc Frameset
2016 S-Works Roubaix SL4 Disc Di2
2016 S-Works Roubaix SL4 Disc Frameset
2016 S-Works Roubaix SL4 Dura-Ace Di2
2016 S-Works Tarmac Celebrazione Frameset
2016 S-Works Tarmac Di2
2016 S-Works Tarmac Di2 Warranty Replacement Frame
2016 S-Works Tarmac Disc Di2
2016 S-Works Tarmac Disc Di2 Warranty Replacement Frame
2016 S-Works Tarmac Disc Frameset
2016 S-Works Tarmac Dura-Ace
2016 S-Works Tarmac Frameset
2016 S-Works Tarmac Nibali Frameset
2016 S-Works Tarmac SL4 Disc Warranty Replacement Frame
2016 S-Works Tarmac SL4 Dura-Ace Di2
2016 S-Works Tarmac SL4 Warranty Replacement Frame
2016 S-Works Tarmac Sagan Frameset
2016 S-Works Tarmac Warranty Replacement Frame
2016 S-Works Venge Frameset
2016 Specialized Edition Roubaix SL4 Disc Power
2016 Specialized Edition Roubaix SL4 Disc Power CEN
2016 Specialized Edition Tarmac Disc Power
2016 Tarmac Comp
2016 Tarmac Comp CEN
2016 Tarmac Comp UDi2
2016 Tarmac Comp UDi2 CEN
2016 Tarmac Disc Power SE Warranty Replacement Frame
2016 Tarmac Elite
2016 Tarmac Elite CEN
2016 Tarmac Expert
2016 Tarmac Expert Disc Race
2016 Tarmac Expert Disc Warranty Replacement Frame
2016 Tarmac Expert Warranty Replacement Frame
2016 Tarmac Pro Disc Race UDi2
2016 Tarmac Pro Frameset
2016 Tarmac Pro Race
2016 Tarmac Sport
2016 Venge Elite
2016 Venge Elite 105
2016 Venge Expert
2016 Venge Expert Ultegra
2016 Venge Frameset
2016 Venge Pro
2015 Roubaix SL4 Expert
2015 Roubaix SL4 Expert Euro
2015 Roubaix SL4 Pro Disc Race
2015 Roubaix SL4 Pro Disc Race UDi2
2015 Roubaix SL4 Pro Race
2015 Roubaix SL4 Pro Race
2015 S-Build S-Works Tarmac Disc Module
2015 S-Build S-Works Tarmac Frameset
2015 S-Works CruX Disc Stybar World Champion Frameset
2015 S-Works Roubaix SL4 Disc Di2
2015 S-Works Roubaix SL4 Disc Module
2015 S-Works Roubaix SL4 Dura-Ace
2015 S-Works Roubaix SL4 Dura-Ace Di2
2015 S-Works Roubaix SL4 Frameset
2015 S-Works Roubaix SL4 Frameset
2015 S-Works Tarmac AC15 Frameset
2015 S-Works Tarmac Di2 Disc
2015 S-Works Tarmac Di2 Disc
2015 S-Works Tarmac Disc Module
2015 S-Works Tarmac Dura-Ace
2015 S-Works Tarmac Frameset
2015 S-Works Tarmac Frameset
2015 S-Works Tarmac Frameset
2015 S-Works Tarmac Kwiato Frameset
2015 S-Works Tarmac Nibali Celebration Frameset
2015 S-Works Tarmac RED
2015 S-Works Tarmac SL4 Contador Frameset
2015 S-Works Tarmac SL4 Dura-Ace Di2
2015 S-Works Tarmac SL4 Frameset
2015 S-Works Tarmac Sagan Frameset
2015 S-Works Venge Boonen Frameset
2015 S-Works Venge Cavendish Frameset
2015 S-Works Venge Dura-Ace
2015 S-Works Venge Dura-Ace Di2
2015 S-Works Venge Frameset
2015 S-Works Venge Frameset
2015 S-Works Venge Sagan Frameset
2015 Tarmac Comp
2015 Tarmac Elite
2015 Tarmac Elite 105
2015 Tarmac Expert
2015 Tarmac Expert
2015 Tarmac Pro Disc Race
2015 Tarmac Pro Disc Race UDi2
2015 Tarmac Pro Frameset
2015 Tarmac Pro Race
2015 Tarmac Pro Race
2015 Tarmac SL4 Comp Ultegra Di2
2015 Tarmac SL4 Elite 105
2015 Tarmac SL4 Pro Race
2015 Tarmac Sport
2015 Tarmac Sport
2015 Venge Elite 105
2015 Venge Elite 105
2015 Venge Expert Ultegra
2015 Venge Expert Ultegra
2015 Venge Lunch Race
2015 Venge Pro Frameset
2015 Venge Pro Race
2014 CruX Pro Frameset
2013 S-Works Tarmac SL4 Di2
2013 S-Works Tarmac SL4 Dura-Ace
2013 S-Works Tarmac SL4 OSBB Frameset
2013 S-Works Tarmac SL4 OSBB Frameset
2013 S-Works Tarmac SL4 RED
2013 S-Works Tarmac SL4 RED
2013 Tarmac SL4 Expert Mid-Compact
2013 Tarmac SL4 Expert Ui2 Mid-Compact
2013 Tarmac SL4 Pro Mid-Compact
2013 Tarmac SL4 Pro Mid-Compact
2013 Tarmac SL4 Pro OSBB Frameset
2013 Tarmac SL4 Pro SRAM Mid-Compact
2009 S-Works Roubaix SL2 Dura-Ace Di2
2009 S-Works Roubaix SL2 Frameset
2009 S-Works Roubaix SL2 Module

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