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HRM Jack Shaft Kit – Baja Warrior, MB200 Mini Bike replacement Jack shaft Kit.
Quality jack shaft system to replace problematic factory system and helps gain top speed. Read our Blog about the benefits of the HRM Jack Shaft Kits, CLICK HERE!

#35 chain primary for a smoother operation with less drag and chain noise.

You can add the HRM Clutch Guard as well in the menu on the right of the product description.

Comes with #40 10Tooth Input Sprocket and #35 20Tooth Primary Sprocket.