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Norton Twins Aluminium Barrels

Norton Twins Aluminium Barrels

£1,050.00

DESCRIPTION

Cast in fully heat treated LM25TF aluminium alloy, our Norton twin cylinder barrels have deeper, thinner fins than any others on the market, which makes them harder to cast but achieves superior cooling and a barrel that is visually closer to the original iron barrels. They save around 5kg in weight!

All variants, including the 650 & 750 models are of `through bolted` design, where the bottom fin joins directly to the cylinder flange, similar to original 850 barrels. We use different, coarser thread head bolts to optimise mounting to the alloy barrels.

These barrels are available in 68, 73, 77 & 83mm bores. The smaller sizes are offered in a choice of either iron liners or Nikasil ceramic coating  direct onto the alloy casting. The 77 & 83 sizes are only available with Nikasil bores to maximise the strength of the barrel in high horsepower applications.

Machined in our own workshop on modern 5 axis machinery to close tolerances, these are the optimum barrels for your Norton twin cylinder engine.

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