Why so small?

[AnthonyWhite]

Ok im completly noob when it comes to any type of racing other then Hair Scrambles. Just getting that out there. I was looking at the pictures from an extreme dirt track race and I cant get over how small the tires are in back. The fronts are normal size around 22's im guessing but the back looked like 8's. For hair scrambles I run 22's in front and 20's in back. Please fill me in!

[CannondaleRider]

The smaller the tire, the better the acceleration...but less speed.

Not sure why they would seriously use 8 inch tires, but yeah...Thats the idea behind smaller tires

[AnthonyWhite]

I dont really know how small they were in back I was just throwing a number up. I would think speed would have something to do with the race but i guess rapped out in 5th is plenty of top speed. I never really thought about it but it makes perfect sence! Thanks.

[tater_kamik]

i chose to put 18's in the rear, 19's in the front for two reasons. one, it lowers the quad. 2, more acceleration. i feel that it was a good choice since i do not have to worry about the negative effects of lowering kits...

[AnthonyWhite]

Cool, I like the handling of lowering the bike but you gotta have ground clearance in XC. Plus the elka's I run, you can lower the ride heigth. Thanks for the input

[DJJ450r]

like this:blah: i think it looks funny

[Doober]

Originally posted by DJJ450r
like this:blah: i think it looks funny

i know that kid...he was at onsted michigan im pretty sure, he was fast, he beat a 450r im pretty sure lol

[Scott-300ex]

yeah, guys at my track do that too, especially on blasters


but they run a small rear sprocket so acceleration doesn't increase, i think its pretty wierd

[exboy]

Originally posted by DJJ450r
like this:blah: i think it looks funny

that looks rediculous imho

[Doober]

he was probably 3/4 of a lap ahead the second place guy...

[Killa250ex]

Id like to see him wheely that thing, haha

[Eddiesanders250]

yea id think that would be pretty wheelie happy

[metalmellinium]

I run a 59 inch and a 61 inch tire for flat track racing, i didnt think they were that small :rolleyes:

[prepracing]

and I thought this was going to be a thread about a personal problem of yours :blah: :blah: :blah:

[AnthonyWhite]

rofl... no, i may be white but im all black below the belt. well maybe not but now that i think about it why would you want to check out a thread about someons man parts? lol

[Guy Sutton]

First of all that was a kid riding that quad, that's why they do that. You have a full size chassis or 3/4 size chasis and a small displacement motor, so you need the wheel size change to regain your acceleration. Not to mention and 80cc 2-stroke does not want to spin an 18 inch rear tire very quickly. For the other guy with the 59 and 61-inch tires, those are the compounds of the rubber on those tires I think, they are definitely not the sizes. Food for thought: How many teeth would you need on a rear sprocket for those tires to pull a holeshot.

[Doober]

Originally posted by Guy Sutton
For the other guy with the 59 and 61-inch tires, those are the compounds of the rubber on those tires I think,

compounds dont run that high...and 59 and 61 is probably the measurement around the tire.

[metalmellinium]

Ya lol those are tire sizes, thats how Hoosier does there tires.