Classic Dirt Track Images.

[jimg1au]

hey freaky
hagon made his own disc brake set up which was cable not hydr.i had 1 on my hagon astro. would never stop you,they used to run off the sprocket.dons is different.

[Hollywood]

Reply to Freaky,

This was a very special one of a kind bike. I built this machine when I was in the UK riding speedway. It used the same geometry diamond as my speedway bike only using slightly heavier tube. The engine was a short stroke JAP 500cc. The suspension rear end was my design, the rear wheel was a double sided speedway hub with a disc that I manufactured. The caliper was a Hagon mechanical operated unit. The gearbox was an AMC box modified from 4 speed to 2 speed, only using 3rd and 4th with a neutral between them. The whole design of the bike was to keep the wheel base short and set it up with handlebars, foot rests, seat, etc. in similar positions as my speedway bikes. As I was riding 1 - 2 speedway meetings each week it was important to try to make the bikes the same handling. A chap named Keith Stevenson in the UK used to manufacture speedway frames, he  was a good friend of mine and let me use his workshop to develop this bike. I would love to know where it is now. A  chap from Taree purchased it from me, Chris Clark now deceased.
regards...Don

[Hoony]

G'day Don,

interesting machine, the Jap engine looks to be tilted very rearward, was this to squeeze the g/box into the diamond?

[Hollywood]

No not tilted. The gearbox was shoved forward as far as possible to keep the bikes wheelbase short. Primary drive chain only had half link adjustments.

[Hollywood]

A couple more shots of the bike.

[Freakshow]

Reply to Freaky,

This was a very special one of a kind bike. I built this machine when I was in the UK riding speedway. It used the same geometry diamond as my speedway bike only using slightly heavier tube. The engine was a short stroke JAP 500cc. The suspension rear end was my design, the rear wheel was a double sided speedway hub with a disc that I manufactured. The caliper was a Hagon mechanical operated unit. The
regards...Don

what operated it a pedal or a grip ? i cant see inthe picture.  Still proves disk lived pre 75 period.  nuff said

[Hollywood]

if you look very closely in the bottom photo you will see the forward mounted left footrest just in front of the primary chain guard. Just slightly above is the brake pedal pivoting off the footrest. Set up this way , again to replicate the footrest position of my speedway bikes.

[jimg1au]

SO FREAKY
you going to change your disc brakes back to mechanical and throw away the hydrolic systems.if so i want 1 for my pre 78 xl350 c/port long tracker.
don
my frame looks like yours but c/port.takes jawa speedway forks and jawa front wheel.it is made in italy.
cheers
jim

[Freakshow]

SO FREAKY
you going to change your disc brakes back to mechanical and throw away the hydrolic systems.if so i want 1 for my pre 78 xl350 c/port long tracker.
don
my frame looks like yours but c/port.takes jawa speedway forks and jawa front wheel.it is made in italy.
cheers
jim

Nah why would i, as usless as they are i have no reason to change out the airhearts, its just interesting some folks continue to think disk didnt happen to the 80's well the airhearts where on in 72 and now we see our own with em in 74 so they were everywhere, just not on the showroom floor.   I was just curious as to how it worked and what it was based on.

[jimg1au]

i have a caliper it is basic on a worm drive.as you apply force on the leaver it pushes the pad in.any way dics brake rear end was on the 1976-77 bultaco astro std.i never saw a hyd/disc rear end pre75 saw plenty on mechanical one though
jim

[mx250]

I'm pretty sure the Americans used the Lockhart kart hydraulic brake caliper in the late '60's/early '70's. I would have research it to be sure.

[Hollywood]

SO FREAKY
you going to change your disc brakes back to mechanical and throw away the hydrolic systems.if so i want 1 for my pre 78 xl350 c/port long tracker.
don
my frame looks like yours but c/port.takes jawa speedway forks and jawa front wheel.it is made in italy.
cheers
jim

I would like to see a photo of your bike.
Don

[Hollywood]

[JAP 454]

Good to see you on here,  Don and with some top shots and info, Jims Longtrack frame is a Bellini, I got it from Kev McDonald and passed it to Jim, OK I am gunna try and post another progam cover anmd entry list so here goes.



If that worked I will post the entry list, you are there Don , riding #323

Fossil

[JAP 454]

OK , that worked so here we go with the entries, 180 riders I think,  seven heats of the B grade Unlimited, 18 riders a heat , only first 2 to the semis.