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The Avid Gummimanschette Ball Bearing 7 is a small but essential rubber boot designed specifically for Avid’s Ball Bearing 7 mechanical disc brake system. Over time, dust, moisture, and trail grime can work their way into exposed moving parts, affecting performance and increasing wear. This rubber sleeve helps shield the critical ball bearing and actuation area from contamination, supporting smoother, more consistent braking feel and extending the life of your brake components.
Ideal for riders who maintain their own bikes, this part is a smart replacement whenever you service or rebuild your Avid BB7 calipers. Installing a fresh rubber boot can help restore crisp lever response and reduce the chance of corrosion or sticky movement in the mechanism. Whether you ride daily in all weather or occasionally on dry trails, keeping your brake system properly sealed is a simple step that pays off in reliability and confidence on every ride.
