Log in

View Full Version : Will the new 50w/c meet the 41" rule in the front



xcracer01
03-27-2008, 06:44 AM
Just wondering about the 41" rule for the stock 50cc in atva. Has any body delt with this?

tireman43
03-27-2008, 09:05 AM
The DRR 50 meets all the ATVA requirements. The DRR was made to fit the rule, or the rule made for the DRR. What ever it is, the DRR is good.

There were some DRR 50's that came 44" and they will not. A quick tape measure check will tell you what you have. Also the 44" wide usually came with the extended swinger so that can give you an idea too.

Kevin

xcracer01
03-27-2008, 09:51 AM
Thanks , I have a 08 W/C 50 and with stock front tires and wheels it is almost 42 measured from the top. It has the new maxxis tires on it and came with 8 inch wheels in the back with maxxis also. just was wondering if they may have changed the front wheels . I may have to run pro wheels?

forgiven
03-27-2008, 10:01 AM
would changing the offset also be a violation?

xcracer01
03-27-2008, 10:36 AM
Not sure you would be changing the offset . The new stock wheels have a wide flange on the outside of the tire that hurts it . But I am not sure that is why I am asking also.

#404's Dad
03-27-2008, 10:44 AM
Never seen a DRR50 with Maxxis tires on the rear or 8' wheels as stock, Should be 7" Titans and all be Steel wheels stock from DRR.

Does the bike have Douglas front rims on it, if so there is the problem, they are 2x3 offset and will make it too wide.

xcracer01
03-27-2008, 11:00 AM
It has steel wheels all the way around back is under 41" front is not. I was told that the new style maxxis tires is what comes new on all 08 w/c 50cc. I bought this thing brand new out of crate.

xcracer01
03-27-2008, 02:03 PM
Found out from DRR that they had a distributor put those tires and wheel setup on anywere from 30 or more on the 50cc bikes to see how it would work . Just like some people got alum handle bars when the had a distributor sell them some. I will have to measure the front again. But the whole quad has maxxis Cross tires on it not MX.

xcracer01
03-27-2008, 02:12 PM
Originally posted by #8trx450r
Never seen a DRR50 with Maxxis tires on the rear or 8' wheels as stock, Should be 7" Titans and all be Steel wheels stock from DRR.

Does the bike have Douglas front rims on it, if so there is the problem, they are 2x3 offset and will make it too wide.

Your are saying that 2 to the nose is to far out. The new prowheels I measured were 2n+31/2 B. So they will not work either.

tireman43
03-27-2008, 02:22 PM
Originally posted by forgiven
would changing the offset also be a violation?

I believe so. The rules say you can change rims/tires but must remain stock sizes.

xcracer01
03-27-2008, 02:41 PM
Originally posted by tireman43
I believe so. The rules say you can change rims/tires but must remain stock sizes. The rule as I read it says you must retain stock width witch is 41 per DRR for the 50cc . So you could change your back spaceing and not change your width just like you run 8" wheels instead of the 7".

#404's Dad
03-27-2008, 02:53 PM
Originally posted by xcracer01
Your are saying that 2 to the nose is to far out. The new prowheels I measured were 2n+31/2 B. So they will not work either.

The DRR/Pro Wheels have a 1.5 inch nose and will work, the 2 inch nose wheels ( 2N+3B ) add an inch and make the bikes one inch too wide from my measurments a few months ago off the top of my head.


Corey

xcracer01
03-27-2008, 03:02 PM
Originally posted by #8trx450r
The DRR/Pro Wheels have a 1.5 inch nose and will work, the 2 inch nose wheels ( 2N+3B ) add an inch and make the bikes one inch too wide from my measurments a few months ago off the top of my head.

Corey


Thanks for all the info the guy i talked to from DRR said the old pro wheels were 5 wide and the new ones are 5.5 so I must have measured a new one and you a old one?

#404's Dad
03-27-2008, 06:37 PM
Its my understanding that you can change Tires and Rims as long as you do NOT exceed the 41 inch wide limit, Size has no limit, so long as your offsets keep you in the 41 inch wide limit.

quadscrib
03-27-2008, 06:55 PM
Heres a way to make MANY conversations on here easy..:

6. 50cc Limited: Production models. The following may be changed: tires, wheels (must not change stock width) internal portions of the motor, spark arrestor may be removed (must still meet 99db), sprockets, gearing, clutch, twist throttle, handlebars, grips, handle bar pads, front bumper, rear grab bar, air filter and jetting. Air box lid may be removed or modified. Fenders may be trimmed, manufacturer installed parental speed limiting devices may be removed. Nerf bars or suitable floorboards and working tether cords are required. No other modifications are allowed INCLUDING carburetors, oil injection, air box, gas tank, exhaust systems, wheel base, width, rear axle, A-arm, steering dampner, shocks and suspension. However, if a violation is deemed by the referee to be cosmetic in nature, with no performance advantage or willful misconduct involved, he may issue a warning or fine in lieu of disqualification.

quadscrib
03-27-2008, 07:04 PM
I think the first sentance there removes the doubt.
You CANNOT "change stock width". and the" maximum width is 41 inches " two different rules....
Well you know I read that and realize it doesnt mention 41"...
hhhhhhmmmmmmmm????:confused: :confused:

quadscrib
03-27-2008, 07:10 PM
OK!? I have a copy of the 2007 supplemental rules which is a pdf file so I don't know how to show it to yall and but it states Must not exceed 41" but the cut and paste I put a couple posts back that's from the 2008 supplemental rules says NOTHING about 41" anywhere'
That still doesn't mean you can widen the quad MORE than stock in any way.

xcracer01
03-28-2008, 06:44 AM
Its all about what classes your track has we only have stock 1 with the 41" rule and motor must be stock . So we don't use the limited rules. Just check with your local track unless you run the nationals.

xcracer01
03-28-2008, 06:45 AM
By the way my 08 w/c with the maxxis cross tires was under 41" it was just my bad eyes and those tires I guess. Thanks for all the help......

quadscrib
03-28-2008, 07:10 AM
Originally posted by xcracer01
Its all about what classes your track has we only have stock 1 with the 41" rule and motor must be stock . So we don't use the limited rules. Just check with your local track unless you run the nationals.
Well what I cut and pasted there is from ATVA's rules but youre correct... check your local rules.
Most ATVA/AMA sanctioned tracks go by "national" rules..at leaste here is dist 14.
I am really curious though as to if the rule has changed now..it is written VERY differently than the 2007 rules which did specificly state 41" 2008 rules DO NOT..... what yall think?

xcracer01
03-28-2008, 07:29 AM
Are problem is that we run X country and gncc does not have that many classes for the 50 cc so we took some from page 67 of the 08 rule book and made them fit our style of racing. But we are a ATVA backed race series.