Bonz Expert Headset
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Freewheel with 135 engagement points from Bonz.
9 pawls and 135 engagement points giving a quick engagement and durability.
Three sets of 3 pawls engage at a time into a tough 45 tooth ratchet, giving 135 engagement points.
Fully sealed bearing system increases the smooth running life of the freewheel.
Suitable for all cranks and hubs with standard 1,37'' x 24 tpi thread.
Available in 18t.
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