OzVMX Forum
Clubroom => General Discussion => Topic started by: paul on November 23, 2013, 02:10:46 pm
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http://www.ebay.com.au/itm/Yamaha-500TT-Dirt-Track-Racer-Deus-Flat-Tracker-Speedway-Slider-Motard-/151172824749?pt=AU_Motorcycles&hash=item23329a3ead
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Over 35 allpowers
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Nice bike but.....You may get into Evo but I think the modern frame and forks puts you in with the moderns. I've never quite understood the thinking behind using a vintage engine in a modern frame, I'm sure it fits into an American short track class but I doubt it's vintage legal there too. I suspect it hasn't been raced for a while as they haven't made Goodyear dirt track tyres for a number of years. I've got one here and it's rock hard.
(http://i1112.photobucket.com/albums/k495/firko2/firko2185/CCMTT500_zps733e9098.jpg) (http://s1112.photobucket.com/user/firko2/media/firko2185/CCMTT500_zps733e9098.jpg.html)
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thanks firko
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Firko, whats the local word on nepean 2moro, Peter snow said he thinks its on...
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Firko, whats the local word on nepean 2moro, Peter snow said he thinks its on]Firko, whats the local word on nepean 2moro, Peter snow said he thinks its on
No idea, but the weathers now fine after pissing rain this morning.....I can't make it unless something changes unfortunately.
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Firko, whats the local word on nepean 2moro
UPDATE:
According to the radio a few minutes ago there's a very heavy storm warning for the Hawkesbury area this evening.....meaning that Nepean Raceway will no doubt cop it big time sometime soon. If the track cops too much water the meeting might be under a cloud...pardon the pun ::).
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SlideRulz! That's YOU!
cheers pancho
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TT500 is Old School Big Single
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TT500 is Old School Big Single
It depends on what you think is old school Graeme....the TT500 engine is for sure but the CCM mono frame is definitely new school.
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Mark I was thinking the power unit is the key in Dirttrack over the chassis
Especially the way I suggested in those early posts
Once we get support then we can make things cleaner.
right now I would be happy to see 2 classes
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Nice bike but.....You may get into Evo but I think the modern frame and forks puts you in with the moderns. I've never quite understood the thinking behind using a vintage engine in a modern frame, I'm sure it fits into an American short track class but I doubt it's vintage legal there too. I suspect it hasn't been raced for a while as they haven't made Goodyear dirt track tyres for a number of years. I've got one here and it's rock hard.
(http://i1112.photobucket.com/albums/k495/firko2/firko2185/CCMTT500_zps733e9098.jpg) (http://s1112.photobucket.com/user/firko2/media/firko2185/CCMTT500_zps733e9098.jpg.html)
The Goodyear tyres are now Dunlop k180's as far as I no same look pretty sure there made in the USA to
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The monoshock setup is perfect for adjustments on the fly....
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Mark I was thinking the power unit is the key in Dirttrack over the chassis
Especially the way I suggested in those early posts
Once we get support then we can make things cleaner.
right now I would be happy to see 2 classes
I see your point Graeme but you'd be up shit creek according to MoMs if you wanted to race this bike in vintage here in Oz and even in the USA where you'd need a traditional style twin shock frame. The CCM frame misses all the cut offs for the various divisions in our rules but it'd be fine for modern.....which is a shame because of the vintage TT500 engine. If you wanted to ride in modern why not have the best technology by using a YZ450F motor or even a Rotax. And that's not mentioning the need for a front brake here.
The Goodyear tyres are now Dunlop k180's as far as I no same look pretty sure there made in the USA to
Yeah, I realise that you can still get that tread pattern in Dunlop and even Maxxis and Golden Tyre....my point is the age of the Goodyear tyres on that bike indicating its possible lack of use for a few years.
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MoMs occasionally can't see the Forrest for the trees.
That said it is difficult to get it right even if you write your own rules.
Who would be a Commissioner??
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Stick a drum brake wheel on the back and a std front end and go EVO and Pre85.
The griffith boys run fancy frames, GLS or some other brand and get in pre 75
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Stick a drum brake wheel on the back and a std front end and go EVO and Pre85.
That's where I'd put it. There's a big vibe out there for these bikes that could end before it starts if rules and era's for the vintage framers aren't addressed. I understand and support what SON is doing in promoting these bikes but I believe that we need to keep the classifications loosely in line with MoMs. To simplify the whole deal I reckon there should be two loose vintage age cutoffs....pre 75 and Evo. Bikes like the above Yamaha would fit into Evo while machines like my little 360 Yamaha short tracker (below)would slot into pre 75. I think the bikes should be classified under speedway regulations with their own section if they're being used for long track or short track but be classified under Classic Dirt Track if they're being used for traditional short circuit/dirt track. Period disc brakes should be allowed for both classifications with no front brake for long/short track and a mandatory front brake for dirt track making it easy to swap from one discipline to the other by just changing front wheels....basically the difference between Dirt Track and TT racing setup in the US.
For people to become interested in buying and/or importing these type of bikes they need to be capable of being used for both types of racing to get more bang for your buck. To make that possible, some rules, most specifically the drum brake only criteria for pre 75 and Evo need to be repealed more sooner than later.
Below: My MoMs legal pre 75
(http://i1112.photobucket.com/albums/k495/firko2/firko2001/flat%20trackers/flattracker010_zpsdcef4330.jpg) (http://s1112.photobucket.com/user/firko2/media/firko2001/flat%20trackers/flattracker010_zpsdcef4330.jpg.html)
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To change this thing would be a farking crime! run it like it is FFS!
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MoMs occasionally can't see the Forrest for the trees.
That said it is difficult to get it right even if you write your own rules.
Who would be a Commissioner??
Right now unless it can be shown the bike was manufactured before 1990 it doesn't fit into any Classic or Post Classic Dirt Track classes.
Modifying if by putting a drum brake on the rear does not make it fit into EVO and I'm sure the forks wouldn't comply also, read 18.5.6.2.
At the moment the MOMS GCRs for C & PC Dirt Track mirror the classes for C & PC MX. any change would need to address that.
The bike as it stands could be raced in Track. I was at the Australian Senior Track Championships a week ago the fastest bike was a 450 slider.
There are separate rules for Classic Track also. Has this Championship ever been run?
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The bike would make a great fun road bike. Front disc and lighting and then the problem of getting it registered.
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The bike as it stands could be raced in Track. I was at the Australian Senior Track Championships a week ago the fastest bike was a 450 slider.
That's the point I'm trying to make. To own one of these bikes I'd assume the owner would want to cross over between dirt track and Track racing which both carry different regs and cutoffs for classic bikes. For track I'd like to see Evo and pre 75 classifications and I'd like to see a classic class for the big twins, possibly Evo. To make the transition simpler (and cheaper) I'd like to see period disc brakes allowed in the MoMs Dirt Track regs. All an owner would then have to do is fit a front brake to their bike to race dirt track (or replace it with a spool hub if doing the reverse). Even though I'm sure my upcoming OW72 Yamaha will be reasonably competitive with modern twins, I would prefer it to race against similar period framers with Triumph, BSA, XR750, XS based Yamaha motors and other period twin engines, than against modern style bikes. My mates with similar vintage big twins feel the same.
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So do I Mark hense the
OLD SCHOOL
NEW SCHOOL
Just to throw in a curved ball
YAMAHA's 2014 SR400