YZ450F 2020-22 Big Bore and stock replacement cylinder kits
Big Bore cylinder kit
Once again , Athena has surpassed itself with these new Big Bore and Standard Bore kits for Yamaha YZ450F 2020-2022 , designed and manufactured in Italy for " performance , reliability and endurance ". " Tested on the bench and on the track , both kits can be installed without having to make any changes to the motorbike crankcase , and include the forged piston designed by Athena , the aluminium cylinder with self-lubricating and anti-seizure coating on the barrel and the corresponding range of gaskets made using Athena ' s 40 plus years of gasket manufacturing experience ". The new Athena Big Bore cylinder boasts excellent torque and power performance , delivering 6 hp more than the original set-up . To achieve this , Athena says that its engineers " designed top-quality , highprecision components . " The aluminium cylinder in this cylinder kit features 102 mm bore , which provides a significant increase in torque and power at low , medium and high revs . The forged piston included in the kit was designed by
Athena engineers together with the cylinder to create a system that performs even better than the original . The results obtained from bench and track tests also demonstrated an increase in the compression ratio ". Athena has also researched and re-engineered the Standard Bore cylinder kit . It ensures the same durability and reliability as the original kit , and at the same time maintains the new features of the YZ450 F 2020-2022 engine . Athena ' s new aluminium cylinder has been heattreated to improve its mechanical properties and to ensure maximum resistance even at high temperatures ; the included forged piston has a molybdenum disulphide coating on the shell - which further reduces friction and improves the sliding .
ATHENA Alonte , ITALY Tel : + 39 0444 727272 motorsport @ athena . eu www . athena . eu
Standard Bore cylinder kit
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