VT Pitbike racing

[MotoFreak]

I wanna come play in the mud

Where were you Sat afternoon!?

[darkduc7]

ok, i just took a chance and ordered a rim i think will fit. question is, will it be here in time to play this weekend on the asphalt? we should plan on sunday at least to be safe...

[ninjachica250]

I dont have a pitbike yet.... I been lookin at some but im lost at what to get

[sandros]

ok, i just took a chance and ordered a rim i think will fit. question is, will it be here in time to play this weekend on the asphalt? we should plan on sunday at least to be safe...

Where'd you find the wheel??

[Doc]

I wanna come play in the mud

Are you even close to Vermont?

[darkduc7]

I dont have a pitbike yet.... I been lookin at some but im lost at what to get

get on it. where are you from btw?

[ninjachica250]

Im in CT.... VT is prolly a good 3 hr hike!?

[sandros]

Are you even close to Vermont?

Doc, can you set up Sunday at the Barre Kart Track??

[Kurlon]

Get an entire rear end that takes a more common hub/brake setup, and a pair of wheels, call it good. : )

[darkduc7]

Im in CT.... VT is prolly a good 3 hr hike!?

then why are you talking about pitbikes in the VT section?

not trying to be unfriendly, but i was assuming you were from here...

[darkduc7]

Get an entire rear end that takes a more common hub/brake setup, and a pair of wheels, call it good. : )

shit. too late ;-)

i think this will fit. i verified the axle size, and bolt spacing for the brake disc and sprocket.

i'll be running 100/90 tt 92's front and rear since thats what came with the bike. is this ok? or should i be running a wider rear like sandros bought?

ps. the wheels are 1.60 in the front and 1.85 rear. both 12"

[Kurlon]

100/90s will work, and if you're running a stock motor are a better choice as they're lighter. Conversely I've run 120/80s front and rear on 1.4" x 12" rims with no ill effects. The heavier tire actually acts as a bit of a damper slowing down the front end a touch, at the cost of acceleration.

[sandros]

100/90s will work, and if you're running a stock motor are a better choice as they're lighter. Conversely I've run 120/80s front and rear on 1.4" x 12" rims with no ill effects. The heavier tire actually acts as a bit of a damper slowing down the front end a touch, at the cost of acceleration.

I've spoken and emailed with many who say that a 120 on a 140 rim is like trying to squeeze a MTB tire on a road racing bicycle rim....it stands proud and handles messy. Don't get me wrong, I don't want this thing twitchy, but I've come to understand that a proud shoulder on one of these suckers makes it unpredictable. Thoughts??

Doc, how we doing on setting up sunday??

[Kurlon]

It does stand proud, you don't get the same profile you would on a 2.75" rim like it expects and is a raunchy PITA to mount...

But it works quite well. The taller sidewall actually works in your favor, giving you a far better profile than you should get with that narrow rim. Try mounting a 120/70 or lower profile tire and the curve of the treaded area gets exaggerated VERY quickly.



Hard to tell from that shot, but the area that is brown is the usable contact area, where there's no dirt, it's almost vertical. You don't get any warning when you transition over too far, it just lets go.



This REALLY shows the problem a wide tire with a low profile has when mounted on a narrow rim.





That's a 120/80R12 on a 1.4" rim. If you look, the profile isn't bad, you can safely use the whole tire, and it's very predictable. Having run both the 'proper' rims and narrow rims, the small gain you get really isn't all that noticeable to me as long as you use a tire with a tall enough (and stiff enough) sidewall.

[sandros]

Kurlon,

littl off topic, but can I ask where you got the handguards? Might be a nice thing to have for the multiple low-sides I see in the future...already replacing my levers with foldables from Tbolt.

[Kurlon]

They are normal Acerbis units, just about any moto shop should be able to get them. "Minicross Rally" is what you're looking for. Available in Black and White they come with bits for mounting on regular steel or aluminum 7/8" bars.

[ninjachica250]

there are no other pitbike threads and when I saw this thread I became interested.... Ill stop talking now.

[sandros]

Hey Chica,

don't listen to darkduc...(he's just kidding...tongue in cheek if you will) There are folk on this forum that know boatloads. Guys like Kurlon and Doc. I've been reading a ton to get mine set up and might be able to answer basic questions. If nothing else this can and should serve as a place where we can all ask questions. Hopefully its a help to anyone.

Just think, if it becomes more popular, we can split off another thread if need be. Keep at it and let any of us know if we can help you get into this and have a friggin blast!!

cheers!

[tsanterre]

I still want to go! I'll try to make it to whatever date you guys pick, if there is still a pitbike available (Doc)...

Doc - if the "VT Pitbike Org" doesn't make it to the track this year... will my gift certificate be good next season?

[sandros]

Excellent. That puts the count up to 4. I think right now we're hoping Sunday in Barre EDIT: Better weather outlook for Sunday as well), but Doc knows how to set that up...so we'll see what we get.

Brett
Sandy
Tsantarre
Doc (?)

Anyone else??

[darkduc7]

i hope my wheel shows up by then and fits! otherwise, its time to swap tires again, and thats a pita. not to mention bad for the tires.

[Doc]

I still want to go! I'll try to make it to whatever date you guys pick, if there is still a pitbike available (Doc)...

Doc - if the "VT Pitbike Org" doesn't make it to the track this year... will my gift certificate be good next season?

Yes your cert will be good for 1 Pitbike "rental" (if I ever get another bike to rent) OR If you get a Pit Bike your 1st $50 entrance fee is covered with the Cert. From now until the end of time as long as I am still around and or organizing the event.

Don't lose the Certificate!

As for Sunday, I have an email out to the Track Owner. How is the weather looking?

[darkduc7]

at this point i dont care what the weather is, unless its snowing. we gotta do at least one day before were SOL for the season.

doc, if worst comes to worst can you just bring your tire spoons so if i dont have my rear wheel, i can just swap tires? i hate to do it, but i dont wanna miss out either.

[sandros]

As for Sunday, I have an email out to the Track Owner. How is the weather looking?

Currently, Sunday is the better day. Partly to mostly sunny, high's in the 50's.

Saturday, 30% chance of precip, high near 50.

Let's hope it works.

[Doc]

Afternoon is good right?