Forum whore
Attachment 253414
The big question is ... could they compete for handling and weight with a Honda RS chassis?[/QUOTE]
I know when I had mine it was pretty much the class lightweight which was why Ian managed such a high position in the British champs on a bike with less BHP than the MBA's that every body had back then, also they handled very well. Mine did break the weld on the bit of box section at the rear a couple of times but these days I am sure things have progressed.
Bogeyman
Funny you should say that, I had similar failures on a (non-motorbike) chassis with exactly that feature years ago. I replaced the box assembly with a large lateral tube with flanges to pick up the engine/suspension mounts, ended up stiffer and lighter and had no more cracks.Originally Posted by cotswold
Go soothingly on the grease mud, as there lurks the skid demon
Forum whore
That's good to hear, might be an alternative to RS's then people could build themselves small light good handling bikes using a spine frame.
Av and Haydon F ran a std CBR supplied by Honda here at the last 2 hour, they ran well but it was clear that it needed more rubber to be able to realise its potential at Mt Wellington.
Weight and grip is where its at for us, BT39's don't cut it here where the emphasis is on carrying corner speed on a tight track, to run at the front, slicks are mandatory.
Av peddling Chambers bike on a rainy day at Taupo, the chassis is from an FZR250 3LN fitted with light junior motard wheels, all up weight about 85KG. Although she was fast and the bike was quick enough she found the bulky FZR hard work against the RS's, something smaller and lighter with nimble handling would be better.
Although I don't have the talent to ride at the front I like to build and ride bikes that could, there is something nice about having a well developed race bike, I guess there are others that feel the same too.
Maybe those wheels and a spine frame built to RS dimensions ....
In the riders seat
Pesonally I think there are already some other good alternatives and the RS frame is over rated, they're small cramped and hard to get the best out of, the likes of the TZR framed bikes have more room and are easier to ride although may be a bit heavier
You think on a big track you don't need corner speed?
People get sucked into thinking they need all sorts of shit to run at the front, the rider is what makes the biggest difference, regardless of the frame
"If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough power."
Bucket Racer/Crasher
One thing about a home made tube frame it could be built big enough for the average bucket racer to fit on. The point about the alloy framed road bikes is a good one. My FZR250 chassis is the best thing I've ever done bucket wise. The Wellington guys were the leaders in the switch to that style of chassis. Wheels have gotten wider I think primarily because you need a certain size wheel to fit the good tyres. At Mt Wgtn at least the fast guys regularly outride even the best tyres you can get, even Henk. A few of us in Auckland a long time ago used to import little sticky French TT100GP2s but RS125 size slicks are better, available, and cheapish. Plus if your rear wheel is 3.5" you can use an old front off your local friendly 600 riders bike.
Forum whore
Yess I like the look of the TZR125/250 frames, they look a better bet than the FZR250
You are right, the rider makes the biggest difference, I don't think there was anything I couldn't haul past on the back staight at the Taupo GP but was out ridden by a large part of the field.
Andrew A was running a pretty stock FXR chassis, and he pretty much won on talent but I am pretty sure if you didn't have slicks (or race wets for the GP) you wern't running up front with Andrew and friends.
Talking with him during the day, I got the impression he can see that a combo of good rider, fast engine and purpose built race chassis would mean that slicks on a std FXR chassis and determination might not be enough, the day hasn't arrived but it could be coming.
Anyway my interest was in an affordable alternative to the fabled RS chassis for those (and myself) that can't find one but want something a little bit special and more interesting than a hacked about 250 road bike chassis. And being able to buy or make a competitive chassis for themselves will add a bit more excitment (as if it needs it) and interest to the bucket scene.
Anorak
insert ominous music don.... donn donnnnnnnne. ie movie soundtrack
Kinky is using a feather. Perverted is using the whole chicken
Forum whore
The Day is coming ......
yum yum FXR's .... one day soon a talented rider will field a fast stroker, and it could be you, the door is wide open.
In the riders seat
The Day is coming ......
yum yum FXR's yummy full tummy .... one day soon a talented rider will field a fast stroker, it could be you
"If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough power."
125GP!!!
Its pretty damn close in wellington now.
Anorak
Are we boring you with the 2 stroke talk Kickaha
Because..... if your bored you do have the time to get that old blue chopper out of the shed paint some flames on the peanut tank put on some risers hifgway pegs and get it ready for GM street race 2012 then.
Are you there kickaha .....Kickaha.....
Its up to you to defend the GN125's honor.
Kinky is using a feather. Perverted is using the whole chicken
In the riders seat
Well three years after the thread was started I'm still waiting for the all conquering two strokes to show up, the worlds reserves of fossil fuel will be used up by the time they're ready to hit the track
"If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough power."
Anorak
Oh well I admit it. As you say if the 2 strokes are truly out matched, We should then ask the MNZ to give us a little more cc to play with then. Only to even it up so its fair.
125cc 2 stroke open carb size liquid cooled, I personally don't see any harm in it.
P.S re the fossil fuel situation look at my signature I have that sussed already.
See you at Greymouth I suggest you get used to the smell of Castrol A747.Because Vanessa is happening ning ning.
Garelli to be added below I remember them for mopeds and small dirt bikes with top specs for the time in the 70's
Have a close look at the pics and read the text the first time i seen the article the other day i was taken by the fact it was a single with 4 carbs and 2 expansion cambers and Frits's FOS looking concept all this in in 1924-26.
yes it was a single but not a conventional one. Still add up the world records.
Kinky is using a feather. Perverted is using the whole chicken
Forum whore
Yes it is a bit of a race against time .....
In the riders seat
Nowhere did I say they were "truly out matched" just no one seems to be able to put together a fast two stroke with a good rider/frame combo and dominate the racing as some people seem to think will happen
I reckon we'll be on electric bikes before it happens
"If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough power."
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