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Bridge crank spindle compatibility across 30mm, 29mm DUB, and 24mm systems with high-concentricity CNC alloy adaptors engineered for creak-free power transfer.
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Changing your crankset shouldn't force you to discard and replace a smooth, high-performance bottom bracket. Mismatched spindle standards often lead to improper fitment, accelerated bearing friction, and irritating drive-side creaks under load. The Camepro BB Adaptor Series resolves spindle incompatibility with micro-tolerance concentricity, seating flush directly into the bearing inner race to create a solid, zero-play interface.
Precision CNC-machined from aircraft-grade alloy, each adaptor eliminates rotational deflection while preserving uninterrupted power transfer during hard out-of-the-saddle sprints. Whether stepping down from 30mm to 24mm (Red), 29mm DUB to 24mm (Silver), or 30mm to 29mm DUB (Black), this system unlocks total drivetrain configuration freedom across T47, BSA, BB86, and PF30 standards without the expense of boutique replacement BBs.
FEATURES
Color-Coded Precision Architecture
Delivers instant visual identification for workshop mechanics and home builders across 30-to-24mm (Red), 29-to-24mm (Silver), and 30-to-29mm (Black) configurations.
Micron-Tolerance Concentricity
Guarantees exact center alignment within the bearing inner ring to eliminate axial play and prevent premature bearing wear.
Creak-Free Flanged Profile
Prevents lateral migration and chassis squeaks under aggressive out-of-the-saddle pedaling torque.
Value-Driven Drivetrain Compatibility
Unlocks multi-crankset versatility across Shimano Hollowtech II, SRAM DUB, and 30mm platforms while preserving your existing high-end bottom bracket.
Aircraft-Grade CNC Alloy
Maximizes surface hardness and durability against repeated crank installations without deforming under bearing preload.
PRODUCT POSITIONING
Precision CNC alloy bottom bracket reducer adaptor system for cross-compatibility between 30mm, 28.99mm (DUB), and 24mm cranksets.
TARGET AUDIENCE
Road and gravel cyclists swapping cranksets without changing high-end ceramic bottom brackets
Bike shop mechanics requiring reliable, zero-tolerance bottom bracket reducer sleeves
Home mechanics configuring Shimano, SRAM DUB, or 30mm axle cranksets across mixed frame standards
Riders seeking an immediate, cost-effective cure for bottom bracket creaks and spindle play
SPECIFICATIONS
Brand: Camepro
Model: BB Adaptor Series
SKU: 1601071 (30 to 29mm) / 1601072 (30 to 24mm) / 1601073 (29 to 24mm)
Material: Aircraft-Grade Aluminum Alloy (CNC Parallel Machined)
Option Red (#1601072): 30mm BB Bearing Bore to 24mm Spindle (Shimano Hollowtech II / FSA)
Option Silver (#1601073): 29mm SRAM DUB BB Bearing Bore to 24mm Spindle (Shimano Hollowtech II / FSA)
Option Black (#1601071): 30mm BB Bearing Bore to 28.99mm Spindle (SRAM DUB)
Bottom Bracket Compatibility: T47, BSA, BB86, PF30, BB30, BB386EVO