Roulement de direction BlackBearing B7 1"1/8 30.5x41.8x8 mm 45x45°

BlackBearing B7 1"1/8 30.5x41.8x8 mm 45x45° headset bearing

(12 reviews)

30.5x41.8x8 mm 45x45°

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Bearings

Internal diameter

External diameter

Thickness

Ref : 1862823

€16.95

Price : €17.70

In stock

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Based on 12 reviews

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BlackBearing B7 1"1/8 30.5x41.8x8 mm 45x45° headset bearing

More details In stock

BlackBearing B7 1"1/8 30.5x41.8x8 mm 45x45° headset bearing

€16.95

Also available in store

The BlackBearing B7 headset is designed for frames equipped with a 1"1/8 pivot fork. Its 2RS double lip system ensures optimal sealing against moisture and dust for increased durability, while offering low friction.It is necessary to measure the dimensions of the bearing you want to replace with a caliper to ensure that the BlackBearing B7 bearing is compatible with your bike, while also taking the angle into account.

Features

- Steel bearing
- 2RS seals: double lip, long-lasting performance with less friction
- High-quality "abec 5" balls
- Bearing height: 8 mm
- Internal bearing diameter: 30.5 mm
- External bearing diameter: 41.8 mm
- Angle: 45° internal, 45° external
- For 1"/8 fork pivot

Bearing sold individually.

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1★

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5★

9.8/10

Based on 12 reviews

Lilian C.
Published Apr 26, 2026 at 12:37 am (Order date: Apr 12, 2026)

5

4 stars (Translated review)
Francis L.
Published Aug 18, 2025 at 03:12 pm

5

In replacement of a very worn bearing: no comparison! (Translated review)
Clément L.
Published Aug 16, 2025 at 06:17 pm

5

For replacing the headset bearings on my old BMC SLR01. Perfect! (Translated review)
Franck s.
Published Nov 24, 2024 at 12:22 pm

4

Bought for a BMC SL01, perfect. (Translated review)
Dominique c.
Published Sep 23, 2024 at 10:22 am

5

Good bearing and delivery in 24 hours. (Translated review)
Olivier s.
Published Jan 29, 2024 at 09:34 am

5

Very good brand for these bearings that last over time (Translated review)
Jacques B.
Published Jan 05, 2024 at 11:45 am

5

Perfect bearings, easy to change, to replace those in my headset that are several years old and have many km. I received by mistake a bearing that did not have the requested characteristics. Angle error 36° instead of 45°. I would like to thank Materiel vélo for the speed with which your customer service reacted to send me the correct one. (Translated review)
Pascal M.
Published Aug 07, 2022 at 08:56 am

5

Steering bearing clearly of quality that does its job. Nothing to report, after a few rides. Fast delivery. (Translated review)
Alain R.
Published May 04, 2021 at 07:53 pm

5

Very good sealing of this bearing and easy assembly (Translated review)
Thibaud P.
Published Apr 30, 2021 at 03:11 pm

5

The bearing seems to be of good quality and fulfills its role perfectly. The angle is well made and it's impeccable on the contact areas. We'll see over time.... I've already bought very high-end stainless steel bearings (36€), but the body is steel and only the balls are stainless steel. I haven't gained anything in lifespan, so I now take bearings with a good quality/price ratio. (Translated review)