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You might not think engineers are brave.....But it took balls of steel to make the first bearings.
You might not think engineers are brave.....But it took balls of steel to make the first bearings.

06B40H-SB Metric Sprocket 40 Tooth 16MM Stock Bore For 06B British Standard Chains

$60.75
SKU 06B40H-SB

Metric Sprocket for British Standard Chain

06B40H

Stock Bore - No Keyway / Set Screw

PD: 121.4mm

Bore: 16mm

Hub Dia.: 70mm

Hub LTB: 30mm