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Athena Big Bore Kit - YAMAHA YZ450F 06-09, WR450F 07-11 478CC

£664.19 (FREE UK Delivery)
Item in Stock  |  Usually dispatched within 24 hours
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All kits include:Aluminium cylinder with galvanic coating Forged piston with molybdenum coating Special gasket kit Easy-to-follow step-by-step installation instructions Certain kits also include additional parts, please call for more information on the specific kit required. Full range of spare parts also available. 144cc Kits now available for popular 125cc 2-stroke models!


If you require a refund please return the item(s) to the address below along with a Returns Sheet and we will promptly refund the order in full:

Dennis Winter Ltd
Canalhead Service Station
South Street
HU17 5NY

*If an item is returned the customer is required to cover the cost of return P&P (unless otherwise agreed.)

Shipping rates:

UK mainland (Exc. N. Ireland) = FREE DELIVERY ON ALL ORDERS.

Western Europe Up to 1KG = £7.99
Western Europe 1-2 KG = £9.99
Western Europe 2+ KG = £19.99

No credit or debit card details are held on our system and all payments are made via a sceure network.