OZ BEARS nationals 2022

Great result for all concerned. Engines, bikes and riders all intact, trophies on the dashboard. Way to go!
Certainly you had it better than the Scandinavian guys racing this weekend in Sweden (where I would have been had I continued), yesterday all races cancelled, temp under 10 deg, pissing rain, and then a massive oil leak around the entire track, they are hoping it is ok today.
 
T.C said:
Here’s a pic of Fitzy’s rear wheel off the Triumph

I’m no expert but does appear to have some issues 🤔

The lengths people go to to try and catch Matt.

Obviously welding a forged wheel is a cause for concern.
Fitzy has now gone back to his original spoked wheels .
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Inadequate section area where the cush loads are fed into the hub. I've had cush drives break up on big Suzukis here. But they break the actual cush - not the hub. Should be possible to machine a replacement piece which fits over the hub OD. Pin it in several places and then weld.

Chris - re a Harris Suzuki running. Oz BEARS seem to have different rules than Kiwi ones. Some years back we had a couple of aussie BEARS competitors turn up here with Yamaha single powered bikes - which met your rules. But not ours. Not accepted. Cosi's Aprilia woulodn't be either - Suzuki engine.

Good results generally - but I'm waiting to hear Red's verdict on the tensioners.
 
4 out of 4 for the mule Matty got onto the 1.46’s and had a really amazing race against the Suzuki powdered Harris framed ring in it it looks like the engine suffered keeping ahead of the mule.
Also worthy of a most special mention Maurice’s got Black Betty home safe and sound
Matty first in F4 for the weekend and Maurice 3rd though he gave Fitzy a bit of a fright and nearly got into 2nd spot
And was good to see Mikes young bloke follow in his footsteps in his footsteps in the F1 race on a very fast 1298 prepared in the no1 Sydney Ducati workshop
 

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Totally excellent day at Phillip IslandIMG_4724.JPG
 

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GregT said:
Should be possible to machine a replacement piece which fits over the hub OD. Pin it in several places and then weld.
Click to expand...
I had a similar idea but was thinking of an internal sleeve rather than external. Turn down the broken bit of hub and bore the inside to fit a reasonably thick-walled internal sleeve to carry the bearing and some kind of cush drive. Make it a shrink on interference fit and weld it in place.
 
Paul Marx said:
Congrats to all.
I'm waiting for the technical debriefing.

Paul
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so far only had a chance to look at one bike which did two practice sessions Thursday and qualifying in the wet on Friday
Cam chain tensioner blade is intact, passed Leak down test easily, no foreign matter in the oil, looking good
Will fix slipping clutch today, check Valve shim clearance, new oil, change from wets to slicks, ready to go to Sydney

Then start on the Mule

Will comment though that Phillip Island may not be the best track to test the modified Cam chain tensioners as there are only two corners at PI where Matt down shifts at high rpm, going into Honda and into MG, rest of the track is very flowing so easy on the engine, in a way
He was saying going into turn one for example he just shuts the throttle in 5th for a split second to unload the bike before throwing it into the corner and getting back onto full throttle drifting both front and rear tyres through the corner
Awesome riding
 
Last edited:
Yeah, you'd need one of our South Island circuits to really test it. Honda RS250's used to regularly break 2nd gear here, it got used so much. Hard midrange acceleration followed by hard braking for numerous slowish corners.
 
serviced both bikes now and no broken cam chain tensioner blades in either engine, both passed Leak down tests, neither need valve shim adjustment, changed oil in both engines
Fixed slipping clutch in one engine, we use 3 x standard and 3 x heavy duty clutch springs that I have now found are closer to very light duty clutch springs after a few years of use so plan on having my own made

Need to fire both engines in next day or two to check carb balance, change out a few tyres, again
And ready to load for Sydney
 
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