RG150 Vs CBR250RR?

[vtec]

I think thats fair RG, but the reason for not allowing modifications in the class is to keep costs down, and keep it simple. So that's why they don't want people messing with things like changing airflow characteristics and jetting to suit, too hard for many noobs... but hey I'm all for it if it means more people up with me. I fully intend to run stock everything on my bike that includes oem air filter. But I'd like to point out that so far, I'm the only 250 near the front of the field in the results. From what I've heard, Texmo has improved a lot, so if the next race is a dry one we'll get to see how big an advantage the 250 is, so reserve judgment on the 250's till we see a couple of them thrashing the field.

Also, I'm pretty sure that I've decided to step up to F2 next year. So I'll be giving up uni at least for a while to try and make enough money to fund the habit, and see what sponsorship I can get for next year.

[Jantar]

I have just checked the MNZ website for streetstock rules, as as you may be awear,, it doesn't really say much.
It doesn't even talk about 250 4/s being allowed in streetstock.
My understanding is it was just a Vic club initiative to get more would b racers into the sport.

My thoughts are:
Exhausts should remain standard until crash damage or rust made them un-useable. Then after market exhaust parts may be used.
Makeing your own would be frowned appon, if they worked well.

Braded brake lines is a no no. Dam! you've got TWO disks up there already!!!

Tyre warmers is ok, but not really in keeping with the goals of the class.

Just my thoughts

What do you think about removing the air filter (using a stocking instead) as part of the allowable Jetting changes that are allowed in the rules?
Now that the fast 250's are there, we need to get every pony we can out of the 150's through good jetting to have a chance.
I don't agree with major engine mod's though.

As I understand it the streetstock is just a rewording of the old "Production Racing" rules. Some people on here may be old enough to remember when a Suzuki Rebel 315 cc won the 6 hour production race in Australia. (From memory it was Bathurst). Despite being quicker than all the bigger machines machines, the rider was disqualified because the bike was not standard. It had been modified in that the horn had been removed.

"Stock standard" meant just that. The bike had to be exactly as one could purchase it brand new off the showroom floor.

[vtec]

Well, you're supposed to remove all glass, and lights and mirrors, and do all the normal racebike setup, but you're not supposed to do performance modifications. But I only think they'll care if you're leading the race, which is why I intend on keeping everything bone stock.

However they have said that you're allowed race pipes if you've wrecked your one, or if it came with it... have a read from here: http://www.vicclub.co.nz/tiki-read_a...p?articleId=68

"Modifications

As the class name implies, this class is for STOCK STANDARD bikes. The only modifications from standard that will be permitted are:
Soft compound road-going DOT tyres
Removal of fairings if desired (fibre glass fairings allowed from 2006)
Removal or taping up of glass (mirrors, headlights, indicators, taillights) with duct tape
Removal of passenger footpegs
Wiring up of sump plug and oil filter (see how to below)
Change coolant for non-glycol coolant

If your bike has come from Japan with an aftermarket exhaust on it, this will be allowed, but fitting of a new one except in the case of crash damage is not allowed. We have to leave this up to you to police yourselves, but it is generally easy to tell if this has been done here.

Crash damage can be minimised by removing the fairings altogether if you like, but replacement fairings shouldn’t be too costly when correctly sourced and duct tape and plastic welding work wonders.

By the way, we will have a technical inspector checking bikes! Anyone thought to be burglaring the class will be asked to rectify the situation after being excluded from that meeting.

REMEMBER, THE CLASS IS FOR NEW RIDERS AND NOVICE RIDERS TO LEARN THE SPORT, NOT FOR FAST GUYS TO BURGLAR THEIR WAY TO A TITLE!!"


These are the reasons for the 4strokes:
"The DESL Motorcycles Streetstock class has come about via a lengthy process of evolution over the past 20 or 25 years. In the late 70’s to mid 80’s we had 250cc Production class which ran 250 cc 2-stroke road bikes (RD, RG, KR to RGV, KR-1 and NSR’s etc). Following the loss of these bikes to cost and attrition the class was abandoned in the late 90’s. At the same time however, 150cc 2-stroke commuter bikes made their appearance on the market. The organisers of the Suzuki Central Roadrace series saw the opportunity to provide an entry level class for novice racers and it really took off as 150 Streetstock. Now that these bikes are also disappearing due to emissions controls internationally and the move to 4-strokes, VMCC have taken the opportunity to evolve the class again to allow 250cc 4-stroke bikes to compete and we simplify the name to Streetstock. "

Also, I think that because we will eventually be racing the 600 and 1000cc 4 strokes, I think that it's best to learn the trade on a 4stroke with at least a semblance of engine braking. If they had not allowed these bikes, I would not have started racing this year or maybe never. As I never want to touch a two stroke again :P Plus, for many, starting on a 400 4stroke is not the best, as they may be a bit too fast for a noob. Also, from where I was sitting bucket racing didn't really appeal, but the 250 4stroke is my ideal starting point. Also, stock standard racing is great, keeps costs down, and is supposed to keep rider competitiveness up. There is no way they are going to ban the 250 4strokes, they brought them in for very good reasons.

[Sketchy_Racer]

Yeah.

I love to have as many people as possible out on the track.

It just that not everyone can afford $5000 street stock bikes. As the street stock class is supposed to be a "cheap entry into racing" i dunno if $5000+ is classed as cheap?

but hey dems the rules and if neil chappell can keep up with you - then i need to pull my finger outta ma ass and ride harder.

[N4CR]

Mabey it's time to face the music.. two strokes are dying out, as are the IL4 250s (not made since 95ish..?) but to a lesser extent as they are much more reliable. 10 years time class if still around will be full of stacked hyoshittas i'd say, not the ancient zxrs and cbrs of old. Noone will know what a 2 stroke is by then.

Evolution... times change, deal with it. Not many people start on rg's etc anymore.

[vtec]

Good perspective Arcturus. Yeah 250's have gone backwards since the early 90's which is sad, cause they are bloody sweet bikes. In 10 years, my bike will be 26 years old... a quarter of a bloody century... even on a Honda, maintaining it will lose its cost effectiveness.

Also, RoadRash bought 2 CBR250's for $2g (for both) a bit damaged, but he's got one going with full fairings, and just needs some forks for his other one which will cost a few hundred. Plus they are a lot cheaper on maintenance than the 2 strokes, so that brings them back in line with the 2strokes on cost. plus resale value is good, as you can get so many k's out of them... Plus they crash extremely well, as I have proven. Initial investment is worth it over the 2strokes... IMO. Oh yeah, I just bought a crash damaged CBR250R for $1g, just needs new front fairings, a new headlight, and a new instrument cluster, a new clutch cable, and clutch lever attachment and bolts. So all up looking pretty with on road costs, it's going to cost about $2.5g, and they're supposed to have the same power as the MC22.

[HDTboy]

RG100, you must be looking in the wrong places for your bikes. I bought my CBR250RR for $2700, and I've heard of them changing hands for much less than that.

[Coyote]

Plus they crash extremely well

Sure do. I managed to crash my old 250 twice in one morning

[SPORK]

Not yet up to James' standard, really.

Get on messanger

[Sketchy_Racer]

yeah i know you can get a cheap MC19....

I dunno where you could get a going reasonable condition MC22 for less than 4Gs.... if you do know where one is tell me.

I dont want a 19 as its suspension is shit

[Coyote]

Whats a MC19 like to ride? Their tyres are as thin as an RGs, so do they handle as sharp?

I think I'm going to go racing this month. I've had enough ride time, I finally regained my confidence back and I'm not concerned about the bikes condition anymore

[Sketchy_Racer]

MC19 has the same width tyres as the mc22

they have lousy ground clearance and the steering geometry is old school making turning in feels like riding a chopper..

still a good bike though.

[MOTOXXX]

im by no means the fastest in the class but here is my opinion....

the cbr250rr is faster than the kr and rg 150's - full stop.

the kr's have a shit load more ground clearance and are slightly faster than the rg's, i know this as ive had them pull away from me.

The rg's have peg and pipe issues and it doesn’t help that the pipe is on the right side and manfield is mostly right hand corners.

At the end of the day its all about the rider and being its a novice class, not many novices can ride the full potential of a rr 250, kr or rg.

Last year i watched a guy on an rg150 do 1.26-1.27s and no one is even close to that yet this year. This guy was by no means a novice.

So why not instead of all you guys crying about it, focus on improving riding skills, ie cornering and braking then move up to a bigger class.

One good thing that st stock has taught me, that if you fuck it up you aint going as fast as an f3, f2 or f1 bike and wont hurt yourself as bad. This is a good way to learn and not have a big off as a novice on a big bike.
It’s a good stepping stone to bigger things.

[vtec]

These are the tyres on the bikes in the room next to me. The lower profile on the MC22 means that it stretches the tyre wider, and the larger profile on the MC19 seems to make it so the tyre is a lot taller, and has steeper sides but looks thinner.
mc22 Front: 110/70R17, Rear: 140/60R17
mc19 Front: 100/80R17, Rear: 140/70R17

MotoXXX I checked last years results on mylaps, and only found a best lap in streetstocks of 1:29... was it done in a race?

[Sketchy_Racer]

I know Daniel Labrum was doing 1:28s .....