we are talking about the bike in the video not tz400 etc , the bike is built for bucket tracks diffient from standard track , i dont got looking for shit on the net and post it. i go for what a have learn't building frames and racing and there is aways more to learn , i look at it as the rear end rise's it pushes the rear into the track whichs keeps the front on the ground for better turning( not running wide). as g forses come into afeck and diffent weights of the bike it will change ( heavy bikes more lightly to swat but a well set bike like motor gp bike look to sit neutral . i dont have the time to sit her blabing on as i have bike to build and learn more . think about what i have put? , i raced guys bikes over the years that say there bike it sliding out , doing all sort of crap , i ride it , go 5 seconds a lap faster and think it go's like a dream . best to get out on the track and do what suit you to go fast
" as the rear end rise's it pushes the rear into the track whichs keeps the front on the ground for better turning".
Thats dead correct except its back to front thinking in my opinion.
If you have an issue with running wide on exit then you need to look at gaining some front end turn - drop the forks thru.
Gaining front grip by killing the rear end with anti squat does "work " but in the example I gave with the Frepin, it was loosing rear grip under power when tipped over hard.
So I didnt try to fix that by reducing the front grip, I dialled in some more natural rear grip by reducing the anti squat % - dropping the rear ride height.
This works just as well around the sweeper at Mt Welly where even at those slow speeds the suspension is heavily compressed.
No Mates bike initially used to step the back out when leaned over going as hard as he could around the sweeper.
Dropping the back gained some rear grip by reducing the anti squat.
It then started to run wide on turn in,so rather than reduce the good rear grip we had just gained he dropped the forks thu to steepen up the front.
Now it steered, and had rear edge grip - seemed to work OK, he won on Mt Welly 3 years in a row.
Same idea with Discombs TZ350 around Hampton when he won the Sheene last year.
It was pattering and loosing front grip when hard over exiting the sweeper under power - that bike has near on no anti squat at all, so all we could do was reduce the squat by winding in
a heap of preload and a couple of compression clicks.
This stopped the rear from squatting so much and unloading the front - then it steered at full noise onto the front straight - seemed to work, he was 3 secs a lap faster than anyone in his class.
Its always best to try and gain grip to balance out a lack at one end, reducing the grip at the opposite end can and does work - if that all that can be done to fix pig handling.
Ive got a thing thats unique and new.To prove it I'll have the last laugh on you.Cause instead of one head I got two.And you know two heads are better than one.
NSR125 project:- http://thetrxproject.blogspot.co.nz/...ng-engine.html
Really? Jason never complained, quite sure Andrew never made those claims...
Whom are you referring to Drew?
Yip, and tried to add as much as we can.
I actually thought it was an interesting thing to discuss.
Given late model RS125s and TZ125s tend to show this as well.
The GPR frames feel great on track.
Streamroller, your only 3rd in NZ (two years in a row) what would you know.
And don't worry about Glen Williams SVR650....
Wobs post above makes good sense, I can imagine that the more mass (weight) and more power - loads up the front with too much anti squat and if front end is not setup to deal with it then it will all go pear shaped.
Owell we will stay away.
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