Affordable four-stroke single GP bikes?

[Blackflagged]

Maybe Super singles USA rules,Change the rules slightly,to suit NZ conditions.And limit bikes to at least,4yr old.4 yr old models would be better priced,would help MX guys get $$ for them,when they retire them,and they haven`t fallen to far to bits ,after 4yrs.

[HenryDorsetCase]

People should stop being tree hugging pussys and learn how to race a real bike - a 2T GPbike

Grow up.

For a number of reasons their (two stroke racers) days are numbered, so people (including manufacturers) are casting around for alternatives. There are enough threads about this and other suggested options both on KB and the whole interwebs (including Roland Sands' which is similar to this using 450MX bikes) that hopefully it will gain some momentum, and racing can continue.

Let me pose a hypothetical for you: You are a 16 or 17y.o. bored with 150cc racing, whats your next class? a 600SP, with 110hp and 180kg? An ooooold F3 bike? Maybe a ProTwin?

What do you do? What do you do? (to quote Dennis Hopper in "Speed")

[R6_kid:Me]

$2k? I think it would be safe to say that it's gonna be a tad more than $2k.

Wheels? easy $1500 for the likes of some 600sp rims

Forks? How much would a front end off a modern 600 cost? plus the required respringing and revalving to match new weight etc

Tripple clamps? Ok so you have forks, now you gotta hold them. Another few hundred. Plus, could possibly need to be a custom made job

Fairings? and mounting gear $1000? Plus paint rah rah

Foot peg hangers? Another few hundred

Shock? a MX one will NEVER cut the mustard on a road race track. $1500

That was priced as per an auction on there for a complete front end with brakes, wheels, tripples, forks, bars etc. To fit you would probably only need to change the bearings in the headstock which may require some engineering but hardly anything difficult. Also doesnt need to be off a modern bike.

Mounts for fairings is $50-60 if you know what you are doing.

At the end of the day it comes down to how creative you are and how hard you research and look for the parts that will work well - if you make it hard for yourself then you only have yourself to blame.

[avgas]

And people thought i was bullshitting when i said the thumper class is the best

[Sketchy_Racer]

Grow up.

For a number of reasons their (two stroke racers) days are numbered, so people (including manufacturers) are casting around for alternatives. There are enough threads about this and other suggested options both on KB and the whole interwebs (including Roland Sands' which is similar to this using 450MX bikes) that hopefully it will gain some momentum, and racing can continue.

Let me pose a hypothetical for you: You are a 16 or 17y.o. bored with 150cc racing, whats your next class? a 600SP, with 110hp and 180kg? An ooooold F3 bike? Maybe a ProTwin?

What do you do? What do you do? (to quote Dennis Hopper in "Speed")

There days are numbered because people find it easier to win on a 'thumper' twice the capacitiy of a competing two stroke that has a big fat lazy power curve.

There days are numbered because the world giants (yanks etc) with thier big 20million litre chevy V8 gas guzzlers are saying that a minority automotive group (two strokes) are the sole reason for the hole in the ozone (proove to me that it even exists!)

So im a 17yo, im bored of 150ss and waay to broke to go 600 racing, f3 are too old so puts me off, pro twins doesn't have enough people in it, I know i'll got 125GP learn how to race properly, for not all that much more than it costs me to race the 150. But oh wait, now they want it to be 2504t GP bikes.. Great, now i can't afford it. What with all those expensive rebuilds that modern 4t needs.

As for Roland Sands saying a 450mx road racer rides great, I don't care who says it rides great, at the end of the day it's still going to be a motox bike pretending to be a road racer, and it will always show that.

[Sketchy_Racer]

That was priced as per an auction on there for a complete front end with brakes, wheels, tripples, forks, bars etc. To fit you would probably only need to change the bearings in the headstock which may require some engineering but hardly anything difficult. Also doesnt need to be off a modern bike.

Mounts for fairings is $50-60 if you know what you are doing.

At the end of the day it comes down to how creative you are and how hard you research and look for the parts that will work well - if you make it hard for yourself then you only have yourself to blame.

Yes, you are definatly right about it coming down to how creative and hands on you are about it. I bet i could manage a mint one for less than 5k. But i'm just one of those people that know how to make stuff, and get good deals.

But the fact is, not many people are that hands on and more people are getting less hands on as computers take over the world.

The idea is a cheap(ish), easy(ish) class to go "gp" racing in. I don't believe this will ever be the case with this.

[quallman1234]

No such thing as a Affordable "GP" bike.

Ill keep repeating it.

[Sketchy_Racer]

Ill keep repeating it.

For some reason I seem to hear a echo.......

[CHOPPA]

I think if i were 18 10k would not be outside the limits for an easy to ride race bike.

I had a quick look at trade me and it would be easy to do...
I am sticking with kawasaki for obvious reasons so if you went to say a honda you would be looking at even less as there 450s have been around since 02

http://www.trademe.co.nz/Trade-Me-Mo...4/k-967196.htm

http://www.trademe.co.nz/Browse/List...x?id=144157071

http://www.trademe.co.nz/Trade-Me-Mo...-144189858.htm

I realise the back wheel would be a bit wide but you get my drift...

Also for Kawasaki race fairings s/h i could prob sort something out $500
I have a zx6r rear shock you could adapt (actually 2) for $100

Get a tacho and shift light out of your civic wire up a temp gauge and iron out the finer details you would have a very interesting bike!

[CHOPPA]

and you would get around $800 back for the popular mx wheels

[R6_kid:Me]

But the fact is, not many people are that hands on and more people are getting less hands on as computers take over the world.

The idea is a cheap(ish), easy(ish) class to go "gp" racing in. I don't believe this will ever be the case with this.

If people aren't hands on and getting involved then i doubt they would be racing in the first place, i know i wouldnt put my hard earn money down without the attitude of getting out there and doing it.

a 450 MX bike needs a rebuild every 50hours of moderate use, the rebuilds are pretty straight forward if you have a bit of knowledge, and i know some bikes actually come with their first rebuilt kit.

By the way watch the video... Kevin Schwantz himself says the same thing you are saying regarding the cost.

[CookMySock]

Not a single, but I'm surprised we don't hear more about GT650R's on the track. Under ten grand brand-spankers-new. $6-7k low-k's pre-loved.. How much more to spend to start the fun ? How much more on top of this to be competitive ?

DB

[Cleve]

I really like this idea. 250 conversions to race with 125's (enough talk put 'em together and let the games begin!) and 450's to F3. And please someone tell that man why the Hyosung is not such an easy switch to racing...

[ajturbo]

everyone seems to like 4 strokes because less skill is required to ride them,

Dam.. i MUST get one of these (4 Stroke)... looks like they should suit my skill level...

oh why .. oh why.... did you have to blow up christine??

[R6_kid:Me]

I really like this idea. 250 conversions to race with 125's (enough talk put 'em together and let the games begin!) and 450's to F3.

Must be something in that two stroker smoke making them people a bit stir crazy, maybe an additive in the oil that makes the smoke addictive, and the people highly defensive of their habits!