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Avid 0710845783579 BB5 MTB Mechanical Disc Brake Caliper - Black — main product image
Avid

Avid 0710845783579 BB5 MTB Mechanical Disc Brake Caliper - Black

★★★★★4.3 (113 reviews)

Reliable mechanical disc brake caliper with tool-free pad adjustment and tri-align positioning for confident mountain bike stopping power.

$32.30*$40.00Save 19%
✓ In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Avid BB5 MTB Mechanical Disc Brake Caliper is a cable-actuated braking solution built for mountain bikes that prioritizes ease of maintenance and reliable all-condition stopping power. Its monoblock aluminum caliper body houses a ball bearing cam mechanism that translates cable pull into smooth, consistent pad engagement. The signature Tri-Align Caliper Positioning System uses three adjustment points to dial in precise rotor alignment during installation, minimizing pad rub and ensuring clean, quiet operation on the trail.

The BB5 ships as a complete kit including the caliper, BB5-specific steel-backed organic pads, and a G2 CleanSweep 6-bolt rotor, making it a straightforward upgrade or replacement for riders looking to add disc braking to their setup. The outboard pad is adjustable without tools via a thumb dial on the caliper, so compensating for pad wear can be done trailside in seconds. With adjustable spring tension and universal front/rear post mount compatibility, the BB5 is a versatile and approachable mechanical disc brake suited for trail riding, commuting, and general mountain biking use.

Key Features

High-performance Avid BB5 MTB Mechanical Disc Brake delivers reliable stopping power in all mountain conditions with durable aluminum calipers and organic pads optimized for off-road riding.

Tri-Align Caliper Positioning System ensures precise rotor alignment, reducing installation time and enhancing brake modulation for confident descents and technical trail riding.

Designed for long cable-pull levers, this monoblock caliper features a ball bearing cam mechanism and tool-free pad adjustment, allowing quick maintenance and customized brake feel on rugged trails.

Universal front or rear compatibility with standard post mount (74mm) installation, kit includes a G2 CleanSweep 6-bolt rotor and BB-5 specific pads, making it an ideal upgrade for mountain biking and trail bikes.

Constructed from lightweight aluminum with adjustable spring tension, the BB5 brake offers durability and consistent performance in diverse riding environments, perfect for aggressive mountain biking and everyday use.

Specifications

Brand
Avid
Caliper Design
Monoblock aluminum
Brake Type
Mechanical disc brake
Pad Type
Steel-backed organic pads
Pad Adjustment
Outboard tool-free adjustment
Spring Tension
Adjustable
Mounting
Standard post mount (74mm)
Compatibility
Long cable-pull levers, front or rear
Included
Caliper, G2 CleanSweep 6-bolt rotor, BB5 pads
Vehicle Type
MTB

Pros & Cons

👍 Pros

  • Tri-Align system simplifies caliper alignment and reduces rotor rub
  • Tool-free outboard pad adjustment allows quick trailside maintenance
  • Includes G2 CleanSweep rotor and pads for a complete braking setup
  • Lightweight aluminum monoblock construction is durable and corrosion-resistant
  • Adjustable spring tension lets riders fine-tune lever return feel

👎 Cons

  • Mechanical cable actuation provides less modulation and power than hydraulic disc brakes
  • Only the outboard pad adjusts, so the inboard pad requires manual repositioning with tools
  • Cable stretch over time requires periodic tension readjustment
  • Organic pads included wear faster than sintered alternatives in wet or muddy conditions

Frequently Asked Questions

Yes, the kit includes a G2 CleanSweep 6-bolt rotor along with BB5-specific organic brake pads.
Yes, it offers universal front or rear compatibility using standard post mount installation with a 74mm mounting pattern.
The BB5 features outboard tool-free pad adjustment via a dial on the caliper, allowing you to compensate for pad wear quickly without any tools.
No, the BB5 is a mechanical (cable-actuated) disc brake designed for use with long cable-pull brake levers only.
Tri-Align is Avid's three-point alignment system that allows precise rotor centering within the caliper during installation, reducing pad rub and improving brake modulation.

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