BlackBearing MAX MR-21531-2RS full-suspension MTB bearing 21.5x31x7 mm steel

The BlackBearing MAX range of bearings has been specifically developed for frame joints. They are suited to oscillating movements, such as those found on MTB frame pivots (linkage bearings, chainstay bearings, seatstay bearings, etc.), and feature more balls than conventional bearings to withstand heavier loads.

They feature 2RS seals that are water- and dust-resistant, and come pre-lubricated with a greater quantity of grease than standard bearings. Mechanical strength is 30 to 40% higher than the standard, ensuring a longer service life despite the high stresses placed on this type of bearing.

- Steel balls
- Steel cage
- High-quality grease, in greater quantity than standard
- Low-friction 2RS seals: water and dust tight
- Internal diameter: 21.5 mm
- External diameter: 31 mm
- Thickness: 7 mm
- Part number: MR215317-2RS

Bearing sold individually.