Bike Headset Bearings- All Sizes - Blueseal Bike Bearings™
Individual replacement Blueseal Bike Headset Bearings™. These bearings are direct replacement bearings for a range of branded headsets including but not limited to FSA, Cane Creek, Hope and many more.
If you don't know the code of your bearing but have the rough measurements, just match them to the measurements below. To get the angle of the inner race use the handy trick below.
Headset bearings are notoriously hard to identify and the same bearing can use different codes to identify them. If your code isn't listed here or you are not sure what headset bearing you need please Email Us and we will help you find the bearing you need.
The chances are we have the bearing you need.
Example No) Bearing Code | Dimensions | Inner/Outer Chamfer Angle | Alternative Codes & Common Uses
1) MR042 | 30.5 x 41.8 x 8H | 45/45 | TH870 MR121 MH-P08H8
2) MR121 | 30.5 x 41.8 x 8H | 45/45 | With lip on Inner Race TH870E MHP08F
3) MR122 | 30.15 x 41 x 6.5H | 36/45 | TH873E TH873R MR054 MR115 MH-P03K
4) MR170 | 40 x 52 x 7H | 45/45 | TH070 MP-P16 TH070E TH070R
5) MR127 | 40 x 51.8 x 8H | 36/45 | TH073 MR110 TH073R TH073E TH073S
6) MR151 | 37 x 48.9 x 7H | 45/45 | NO8c-138 MHP21
7) MH-P16H8 | 40 x 52 x 8H | 45/45 | ACB52
8) MR168 | 34 x 46.8 x 7H | 45/45 | TH970 MR082 MHP22 TH970E TH970DJ TH970S TH970R
9) MH-P03 | 30.15 x 41 x 6.5H | 45/45 |
10) MR075 | 30.2 x 41 x 7.8H | 36/45 | TH800
11) P08H7 | 30.15 x 41.8 x 7H | 45/45 |
12) MR136 | 32.8 x 41.8 x 6H | 45/45 | No.51
13) MR137 | 37 x 46.9 x 7H | 45/45 | No.54
14) MH P25K | 40 x 52 x 6.5 H | 36/45 | Cane Creek 52mm Lower Bearing
15) MR043 | 30.2 x 41.5 x 6.5H | 36/36 | TH872E MR049s MR118
16) MR040 | 30.2 x 41 x 7.7H | 36/45 | TH873/DJ .
17) AC3344H6 | 33 x 44 x 6 | 36/45 | Lower bearings on some Canyon Frames
18) AC3544 | 35 x 44 x 5.5 | 36/45 | Upper bearing used on some Canyon Frame
19) ACB460H7 | 34.1 x 46 x 7 | 45/45 | Lower bearing Scot Foil
20) MH-P22 | 34.1 x 46.9 x 7H | 45/45 | Lower bearing Focus
21) 6707 LLB | 35 x 44 x 5mm | 90/90 | Acros A170 Upper
22) MR314357 | 31 x 43.5 x 7mm | 90/90 |
23) ACB458 | 36.8 x 45.8 x 6.5H | 45/45 | Future Shock Headsets
24) P03H7 | 30.15 x 41 x 7 | 45/45 | Scott Foil Upper bearing TK410
25) ACB519H8 | 40 x 51.9 x 8 | 45/45 | Ritchey Lower
26) ACB515H7 | 40 x 51.5 x 7 | 45/45 | Ribble Headset Lower
27) MH-P08 | 30.15 x 41.8 x 6.5 | 45/45 |
28) MR155 | 30.15 x 41.8 x 7.7 | 45/45 | TH870/DJ P08H7.7
29) MR031 | 37 x 48.9 x 6.5 | 36/45 | IS-2-138
30) ACB3748H7 | 37 x 48 x 7 | 36/45 | Acros A170 Lower
Have a FSA headset and its not listed here? Let us know what model you have as we most likely have the headset bearing for you.
Seal Design
Blueseal Bike Bearings™ have top quality rubber seals. The better the seal iharder for water and dirt to get in and the grease to get out! This is the most important feature for a bike bearing.
Premium Grease
Blueseal Bike Bearings™ contain Mobil XHP 222 grease. Standard stock bearings are designed for use in machinery and contain very little amounts of a non-specific bearing grease (Approx. 20%) This offers little protection against rain and dirt ingress.
Premium Waterproof Grease
Mobil XHP 222 is a premium marine specific grease with high wash out resistance that is designed for use in poor conditions. This means the grease stays in the bearing for longer and offers the best protection against dirt, rain and muddy water.
Strong Composition
Blueseal Bike Bearings™ are built using the best quality materials, this higher class of bearing run smoother & last longer.
Tracked Europe Rate: £8.99
Tracked Worldwide Rate: £11
If you are not completely satisfied with your purchase please contact us and we will do our best to help you.
If you would simply would like to return the item to us, please ensure it is in its original condition and returned within 30 days of receipt. Returned items should be unused and must be returned with a covering letter explaining the reason for return. We will issue a full refund on receipt, excluding the original delivery charge. Alternatively, if preferred, we will exchange the item.
Please note:
Goods will only be accepted for return if they are dispatched within 14 days of delivery, unless we have notified you otherwise. The item is your responsibility until it reaches us. Therefore, for your own protection we recommend that you send the parcel using a delivery service that insures you for the value of the goods. The cost of returning the item to us is your responsibility. Delivery charges are only refundable where goods are faulty and a refund is made.
We pride ourselves on our customer service and whatever your need we are here to help.
Tom Broadhead (Owner) - Trailvision - Here To Keep You Rolling
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United KingdomBeing a bike maintenance virgin I was unsure of what bearings etc I needed. A quick email and description and trail vision explained exactly the bearings I required. Swift response and purchase. Thanks would definitely recommend
United KingdomGreat bearings, I needed help working out which bearings I needed and got great help from the team
United Kingdomvery happy with purchase, good quality
United KingdomI had been recommended to Blue Seal bearings on an mtb forum. I didn't know exactly which bearings I needed, so once I had removed the old ones I measured them and examined them carefully. The website was superb! It had drawings of every bearing as well as other descriptions that size of bearing is known by, which was extremely useful. All this together enabled me to buy with confidence. I found that some other sites were more expensive too, which was a bonus. I will definitely be buying Blue Seal bearings again, when the need arises. 100% recommended.
United KingdomExcellent service. Fast delivery and competitive prices