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Pit Bikes


Chris Elson

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Ye i have two thumpstars, well one is my dads and the other is mine. They are awesome bikes just to have fun on. We modded my bike because we used it a few times at the go kart tracks for supermoto, it's alot faster now. The parts we put on were:

CDI unit to remove the standard rev limiter,

Five-0 rear shock to make it harder on the rear for the tracks,

Higherd the gearing to give it more acceleration,

I also dremmeld and sanded out the manifold coming from the carb (i believe it's called a manifold), as this gives a better fuel and air vapour flow as the standard ones have a ridge reducing the amount of fuel vapour that can travel though it. We also increased the main jet size in the carb aswell.

Xsport did used to make bikes with thumpstar but they later split into two rival companies (or so i was told). So engine wise they are very similar, it's just i prefer thumpstars as they have the anodized parts on which makes them look pretty cool.

Right now i'm not to sure on how to post pics so i will put a pic up in a bit or later (Y)

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I heard tumpsters arent as good as xsports but i still wouldnt mind one. How much did you pay for yours.

oh and onzatprodude a pit bike is basically a smaller version of a normal 110-125 dirt bike, they are much smaller but have a 4 stroke engine which makes them sound very loud. They are nothing like mini motos if thats what you think. Good fun (Y)

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Theres a local dealer nearby us that sell them for £850 brand new, the shop is called quad point and i think they have a website.

To be honest it's more to do with who you ask for opinions, but like i say both are very similar but thumps just have more trick parts on them. I have raced a few xsports at the go kart tracks and managed to pass quite a few fairly easy, this was when my bike was standard apart from some sava supermoto tyres.

The only thing that was and i believe still is a problem with the thumpstars is the chain where it passes over the swingarm, it tends to slide along and hit it especially when the rear suspension is under load as the swingarm angle decreases causing the chain to become slightly tighter, but you can now buy extra thick chain sliders for the thumpstars so the chain doesn't mark or scratch the swingarm. Xsport did use to have a different styled swingarm so they never had this problem, but i think now on the newer models they have used a thicker swingarm like the thumps so the same thing happens, so like i say both are pretty similar.

Edited by huck_it
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Well i havent got a "pit bike/110" but i have a Suzuki Rm 85:

FMF factory fatty pipe

Titanium 2 silencer

Renthal bars & grips

Renthal Sprockets(Front and rear, sized for mid range)

Race tuned

#199 Printed on plates

Execute graphics

Heres an old picture of the beast

Thats not the one you were on earlier, you had to pedal it for bout 2 minute then start it up, pedal and pop or something :blink:

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I have a Thumpstar 120pro

They are really good.

Your best off with a thumpstar or Xsport, they are very similar.

Danny Butler has a mad 120thumpstar! its sersiously rapid!

Some of the stuff he has:

Takegowa rev box

Modded coil

Pro Circuit T4 pipe

five0 Frame an swing arm

I-shock

Uprated fork springs

12"front wheel

He is mental on it as well, very quick, proper moto-x mentality!!!!

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