FIM releases 2011 Moto2 regulations. This is the class replacing 250cc two strokes.

[EJ25RUN]

Hell for Leather Article (June 27 2008) ....

FIM made it official today in Assen. 600cc four-strokes will replace 250cc two-strokes in 250GP beginning in 2011. Further rules will be decided at some non-specific future date. Dorna’s full, but exceptionally brief, release after the jump.

Replacement of the 250cc class

For application from 1.1.2011, the Grand Prix Commission accepted the following proposal, taken by the majority of members of MSMA: 4-stroke engines of 600cc maximum and 4 cylinders maximum. A request will be sent to all manufacturers. The candidatures of the manufacturers interested in taking part in the new class must be sent to the FIM and Dorna by July 31, 2008 at the latest.

Tech regulations released Dec 12 2008

Technical Regulations:

1. Engine

1.1 4-stroke engines only.
1.2 Engine capacity: maximum 600cc.
1.3 4 cylinders maximum.
1.4 No oval pistons.
1.5 Engines must be normally aspirated. No turbo-charging, no super-charging.
1.6 Engine speed limited to maximum: 16,000 rpm. 4-cylinder engines
15,500 rpm. 3-cylinder engines
15,000 rpm. 2-cylinder engines
An electronic system supplied by the Organizers will be permanently attached to monitor and control engine speed.
1.7 Pneumatic valve operation is not permitted.
1.8 Inlet and Exhaust valves must be of conventional type (reciprocating poppet valves).
1.9 Variable valve timing or variable valve lift systems are not permitted.
1.10 Only wet-sump type engine lubrication systems are permitted.
1.11 Minimum weight of complete engine with throttle body, dry:
53 kg 4-cylinder
50 kg 3-cylinder
47 kg 2 cylinder

2. Inlet & Fuel System

2.1 Variable-length inlet tract systems
are not permitted.
2.2 Only one throttle control valve per cylinder is permitted. No other moving devices are permitted in the inlet tract before the engine intake valve.
2.3 Throttle bodies will have a maximum internal diameter (must be perfectly circle except for the area of dent or groove to allow the injector to come out) at engine side out-let of:
42 mm for 4-cylinder
48 mm for 3-cylinder
59 mm for 2-cylinder
2.4 Fuel injectors will be restricted to a defined type (tba, based on cost).
2.5 Fuel pressure must not exceed 5.0 bar.
2.6 No artificial cooling of intake air or fuel.
2.7 Only air or air/fuel mixture is permitted in the induction tract and combustion chamber.
2.8 No direct fuel injection into the cylinder/head/combustion chamber.
2.9 Fuel specification will be for standard unleaded fuel (commercially available EU-compliant "pump fuel").

3. Exhaust system

3.1 Variable length exhaust systems are not permitted.
3.2 Noise limit will be a maximum of 120 dB/A, measured in a static test.

4. Transmission

4.1 A maximum of 6 gearbox speeds is permitted.
4.2 A maximum of 3 alternate gear ratios for each gearbox speed, and 2 alternate ratios for the primary drive gear is permitted. Teams will be required to declare the gearbox ratios for each gear used at the beginning of the season.
4.3 Electro-mechanical or electro-hydraulic clutch actuating systems are not permitted.

5. Ignition, Electronics & Data-Logging

5.1 Data logger system will be supplied by the series Organizer.
5.2 Only the ECU/fuel injection control units supplied by the series Organizer are allowed to be fitted to the motorcycle. Electronic control units include the timing transponder,
engine RPM control, and datalogger systems. No other electronic control or datalogging systems will be allowed on the motorcycle. The price of ECU unit made by each engine manufacturer must be equal to or less than
JPY75,000 (about Euro650).

6. Chassis

6.1 Chassis will be a prototype, the design and construction of which is free within the constraints of the FIM Grand Prix Technical Regulations. The frame, swing-arm, fuel tank, seat and cowling are forbidden to use from a non-prototype as series production road-going motorcycle.
6.2 Minimum Total Weight: 135kg for 4-cylinder
130kg for 3-cylinder
125kg for 2-cylinder
6.3 No carbon brake discs.

7. Wheels & Tires

7.1 No carbon composite wheels.
7.2 The maximum permitted wheel rim width is: Front 4.00" Rear 6.00" or 6.25"
7.3 The only permitted wheel rim diameter is: Front 17" Rear 17"
7.4 The number of slick tires allocated to each rider per event will be controlled.

8. Materials & Construction

8.1 Construction materials will be limited to exclude expensive "non-conventional" materials and manufacturing methods (a list will be issued).
8.2 The following components must be made from iron-based alloys:
Valve springs, camshafts, crankshafts, connecting rods, piston pins, brake discs.
8.3 Engine crankcases and cylinder heads must be made from cast aluminum alloys.
8.4 Pistons must be made from an aluminum alloy.

9. General

9.1 Number of machines: the team can scrutineer
only one motorcycle per rider.
9.2 Number of engines: a maximum of 2 complete engines per rider is permitted at any event. Teams will be required to register engine serial numbers at Technical Control on the day before the first practice.
9.3 Apart from the above regulations, all other construction criteria, dimensions and specifications are as per the FIM Grand Prix Regulations.
9.4 The engine (excluding exhaust, throttle bodies and ECU) used in a race is available to be purchased by another competitor in the same race for a fixed price of €20,000 (Euro). Such purchase request must be made in writing to Race Direction within the protest period, that is within 60 minutes after the official end of the race. The transaction and delivery will be completed immediately at the end of the 60 minute protest period and will be underwritten by IRTA. Teams refusing to sell when presented with a valid request will be disqualified.

[Elbow]

[EJ25RUN]

People are starting to realize that this class is asking for machines that are worse than the production bikes we can buy today.

"Moto(Nascar)" is what i'm seeing so far.

But seriously, i stand with the fact a 250cc develops the best GP rider for larger capacities. Teaches you to be smooth.

[Elbow]

Yeah really.

Is there anything new on the "Daytona Superbike" class for AMA or did that get ditched?

[EJ25RUN]

Yeah really.

Is there anything new on the "Daytona Superbike" class for AMA or did that get ditched?

I have not rear about these. Is it a proposed new class?

All i know is AMA really needs to find a way to change the way things are run cause right now, one of three bikes will win each class.

Superbike - Yoshi (Since Hayden won, it has been the Yoshimura Superbike championship)
Super Stock - Yamaha (using World Superstock bikes now)
Formula Xtreme - Erion Honda

I did happen to see the Moto-ST series on Speedtv the other day. It was GS bikes like the Suzuki SV650 and Aprilia RSV1000 competing at the Daytona 8 hour race. Doug Polon was on a Ducati (he's old now lol)

[Elbow]

There was a lot of talk about it when I was working for AMA, it was making the 1000 class a 600 class, and close spec rules, that's what they told me. Like a real production based class, but teams were PISSED saying they would be quitting and going to MotoGP. One team put a scooter out in their paddock with Daytona Superbike stickers on it as a joke. I'm guessing it'd be like Grand Am's Daytona Prototypes? Didn't NASCAR buy AMA or something? Not sure what all ended up going down, this is just what AMA told me was proposed for next season back in August or sometime.

[EJ25RUN]

There was a lot of talk about it when I was working for AMA, it was making the 1000 class a 600 class, and close spec rules, that's what they told me. Like a real production based class, but teams were PISSED saying they would be quitting and going to MotoGP. One team put a scooter out in their paddock with Daytona Superbike stickers on it as a joke. I'm guessing it'd be like Grand Am's Daytona Prototypes? Didn't NASCAR buy AMA or something? Not sure what all ended up going down, this is just what AMA told me was proposed for next season back in August or sometime.

Nascar did buy it.

I never knew about this idea.

I usually read John Ulrich's plans that don't really go anywhere.

[EJ25RUN]

Nascar did buy it.

I never knew about this idea.
I usually read John Ulrich's plans that don't really go anywhere.

dazn, maybe you can verify.

I heard a while beck that Nascar bought the rights to AMA superbike racing but recently came upon that the Daytona group is now in charge. Do you know who is on top currently?

[Elbow]

Maybe it was very short lived and just a small proposal, or I misunderstood. Not sure.

[dazn]

Maybe it was very short lived and just a small proposal, or I misunderstood. Not sure.

this is what your thinking of.
http://www.superbikeplanet.com/2008/Jul/080719a.htm

I know it sounds crazy,but Id rather see a spec chassis and tire for supporting series. That way you know its the rider, not the machine or the rubber.

[EJ25RUN]

FasterandFaster......

The FIM has announced regulations for the 600cc four-stroke class, which will replace the current 250cc world championship series in 2011. To be called ‘Moto2,’ the new category will have bikes fitted with normally-aspirated 600cc, four-stroke engines, with the rev limit being 16,000rpm for four-cylinder engines, 15,500rpm for three-cylinder engines and 15,000rpm for twins.

In a move aimed at keeping costs low, Moto2 rules will only allow for data loggers, ECU and timing transponders supplied by the organisers. These will not cost more than US$900, and no other electronics will be permitted.

Moto2 bikes’ chassis will not be restricted in any way and manufacturers will be completely free to develop their own chassis and swingarm. Carbon brake discs and carbon composite wheels will not be allowed, and the FIM will also issue a list of other materials and manufacturing methods which won’t be permitted in Moto2.

Each rider in the Moto2 series will be limited to one bike only, with a maximum of two complete engines for each race. And here’s the clincher – the engines used in any given race will be available for purchase by rival competitors, for the fixed price of US$26,700, within one hour of a Moto2 Grand Prix race being completed.

The bikes will need to weigh a minimum of 135kg (in case of four-cylinder engines), 130kg (for bikes with three-cylinder engines) and 125kg (for bikes with two-cylinder engines.)

Hmmm… we don’t really know what to say, but on the whole, this whole Moto2 thing sounds dumb. Low cost racing is all fine – at the club level. But when it comes to top-level Grand Prix racing, we’re not too sure about the use of severely restricted engines.

Also, at this level, rules like competitors being allowed to buy each others’ engines seems just plain stupid. If anything, it seems like a recipe for one-make-only racing, and the 250cc replacement class should certainly not be that! Anyway, all should be revealed in 2010, when these Moto2 four-stroke 600s will first come out and race alongside the current two-stroke 250s. (That will be the last year for 250s before the 600s take over in 2011. ) We'll be happy if we're proved wrong, but for now, we do believe 250s will make mincemeat of the new-age 600s in 2010...

[The BUCKY]

that last rule is crazy

[dazn]

http://moto-racing.speedtv.com/artic...racing-series/

this one is a wait and see deal for me. It might be ok, but it also might suck alot. Im enjoying the Moto ST though.

[cornercarver78]

This blows. These 600's will be more expensive= bad for support class.

[EJ25RUN]

1997 AguÌ GP6 previews Moto2 racers





Like the Moriwaki 600GP Prototype:


Hell For Leather....

The AguÌ GP6, hailing from 1997, provides an excellent idea of what we can expect from the four-stroke 600cc prototypes that will race in Moto2. It houses a tuned version of a CBR600 engine in a prototype frame fitted with common period racing components. Wait, that doesn't sound like a GP bike, what gives?

In an effort to reduce costs and level the playing field, the new Moto2 rules are heavy on the list of items not allowed and light on what is permitted. The engines will have a maximum capacity of 600cc, no more than four pistons, will have capped rev limits, no pneumatic valves, no variable valve timing or lift, no variable-length inlets, no direct fuel injection, and must use internal components manufactured from an iron-based alloy, pistons from an aluminum alloy and crank cases and cylinder heads cast from aluminum alloy as well. Check out the complete list for like a dozen more things engines can't have.

Three or four years ago, it would have been easy to say that this basically amounted to a production 600 supersport engine. Not any longer. Take the 2009 Yamaha R6 for example, it uses variable-length inlets and a ride-by-wire throttle, its engine wouldn't meet Moto2 regs.

So what will power the Moto2 bikes if not production engines? We expect the factories to use the knowledge they've gained building and tuning their current 600cc engines to produce bespoke units based on current thinking and practices, but shorn of fancy high-tech features. They'll obviously be in a racing state of tune, so expect 20bhp or more than the current 120-130bhp production 600 engines. Just like the CBR-based GP6, those engines will be housed in prototype chassis -- don't rule out steel trellis units, they're extraordinarily cost-effective -- running top-of-the-line suspension. With a minimum weight for four-cylinder machines set at 135kg, the Moto2 bikes will perform vastly better than any road-going 600, but 100% prototype GP machines these ain't.

The one saving grace of this technological dumb down is that it could lead to incredibly competitive racing. Just like that currently displayed in World Supersport and Superbike. In fact, come to think of it, we're rapidly beginning to care about those two series much more than anything organized by Dorna.