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imgIntroducing a range of very special parts
Introducing a range of very special parts
imgLarge stock of Big Zed parts
Large stock of Big Zed parts
imgGrowing range of Triple parts
Growing range of Triple parts
imgSee our Yamiya aftermarket and Genuine CB parts
See our Yamiya aftermarket and Genuine CB parts
imgDouble Overhead Camshaft
Double Overhead Camshaft




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special orders supplied - see LINKS and CATALOGUES tabs



Located in North Yorkshire, Saisei is putting over 40 years of passion for Japanese motorcycles into helping other enthusiasts preserve and revive their classic Japanese bikes that we all nurse and cherish so much.

Suppliers of quality genuine, reproduction and performance parts mainly for standard, restored and modified classic Kawasaki and CB750/400 air cooled street bikes. We supply: OEM, Yamiya, PMC, Doremi, APE, Liska, Cometic, DID, JT, Kibblewhite, Vesrah, Wiseco, Sanctuary, Nitro Racing, Sculpture, Ohlins and much much more from stock or special orders.

Whatever your project we can help!

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Latest News

Summer Sizzling Deals

Summer Sizzling Deals

Look out for our SAISEI Summer Sizzler Deals! The very best HOT & TASTY parts at the coolest prices.  


New Euro Pricing on All Products

New Euro Pricing on All Products

SAISEI have made our website even more friendly to our European friends and neighbours! Put away your calculator! Our website now automatically displays the latest Euro ...


Flying Scotsman flies past Saisei!

Flying Scotsman flies past Saisei!

After its £4.2 million rebuild the reborn Flying Scotsman 60103 was fleetingly seen passing Saisei today 10 May. The  legendary steam locomotive left it's home at th...