Specially made for off road use to keep the engine as light as possible, rather than using the heavy steel ones.

Hard anodised as well, it has excellent mechanical properties and exhibits good ductility, high strength, toughness, and good resistance to fatigue.

We do consider these as a consumable though and replace whenever the engine is rebuilt or primary chain renewed.

BSA B25 CRANK SPROCKET 23T 40-0210 ALUMINIUM (PES)

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