Odds & Sods GT750

Old Bike Australasia - - OUT’N’ABOUT -

The bike in the photo (left) is based on a 1974 GT 750 Du­cati. The Imola Replica I built in the late 1980’s for Post Clas­sic rac­ing had sat un­used in the shed since 1993 when the Vic­to­rian Honda mafia had protested “key per­for­mance im­prove­ments” like the fuel taps and the num­ber of ribs on the front calipers! In 2007 I de­cided the eas­i­est way to re­turn it to reg­is­ter­able con­di­tion was to buy a com­plete bike mi­nus mo­tor so I could use the donor in­stru­ments, electrics and all the other bits. Hav­ing con­vinced Brook Henry to sell me a rolling chas­sis I then made the in­evitable ob­ser­va­tion that if I found an­other mo­tor I could end up with two bikes - an orig­i­nal early sand­cast GT750 plus a hot “bitsa” for daily rid­ing us­ing the left over bits and a few odds and ends I hap­pened to have. So I found a bas­ket case mo­tor and the project com­menced. The bike con­sists of a round­case mo­tor built by Ron Young which has been bored and stroked to 908cc with desmo heads, Imola cams, big­ger valves, new Darmah clutch, new V2 gear­box, 40mm pumpers, Dyna ig­ni­tion and up­rated al­ter­na­tor. Ron did a fab­u­lous job re­fur­bish­ing the bas­ket case of worn out bits into an en­gine that never fails to put a smile on my face ev­ery time I ride it. The forks have been re­worked but will be re­turned to the sand­cast bike when Ron re-en­gi­neers some later model cen­tre pull forks to fit to this bike. The shocks are from Max­ton in the UK. Af­ter a bad ex­pe­ri­ence with an al­loy tank also made in the UK, Bernie Wil­lett made the mag­nif­i­cent sculp­tured tank which is now fit­ted. The seat is from Tony O’Con­nor at El­do­rado. The fi­nal piece in the puzzle is the im­pres­sive dou­ble sided twin leading shoe TZ Yamaha brake which a friend had pre­vi­ously used in the Du­cati 450 sin­gle that he raced!

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