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July 15th, 2010, 12:20 AM   #1
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570 Thumper Racing 610cc kit ???

Has anyone built a FE570 Berg with the Thumper Racing 610cc kit yet ???

Looking for some feedback from anyone who may have already done one before I pull the trigger
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July 15th, 2010, 08:38 AM   #2
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Re: 570 Thumper Racing 610cc kit ???

www.Bergos.de also sells an upgrade kit.
But just a little one to make it a 590cc.

http://shop.bergos.de/product_info.php? ... 90cc-.html
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July 15th, 2010, 08:48 AM   #3
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Re: 570 Thumper Racing 610cc kit ???

I don't have experience with this particular kit.

I do however have one of there 453 kits on my KTM 400. Very well done, quality kit. It is still going strong at 100+ hours.
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July 15th, 2010, 02:50 PM   #4
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Re: 570 Thumper Racing 610cc kit ???

other than the KTMtalk hberg section and TT I would have a go at asking about the big bore kits for the 530

http://ktmtalk.com/index.php?showforum=160
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July 16th, 2010, 06:15 AM   #5
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Re: 570 Thumper Racing 610cc kit ???

do you have a link for the 610 kit please.
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July 16th, 2010, 07:36 AM   #6
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Re: 570 Thumper Racing 610cc kit ???

http://www.thumperracing.net/my_ride.php?b=FE570&tb=0
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July 18th, 2010, 11:05 PM   #7
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Re: 570 Thumper Racing 610cc kit ???

Ok all the feedback I have had on the TR 610cc kit is all very positive

http://ktmtalk.com/index.php?showtopic=394674


Also got good info on a guy in Belgium that builds 662cc motors as well

http://www.aliceracing.com/gwr.php

So I'm gunna build one post Safari this year. Have decided to treat myself to a Thumper Racing 610cc kit, 44mm Bergo's throttle body, slipper clutch & full Akra system for the next ARC Forest RallyMoto race. Extra hp never goes astray when talent is lacking
That little lot should make the 570 good for ~65rwhp
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July 18th, 2010, 11:08 PM   #8
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Re: 570 Thumper Racing 610cc kit ???

Yes I am keen to know gazza.
Originally Posted by Gazza
That little lot should make the 570 good for ~65rwhp
Geez do you miss the sikfiddy or what ?
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July 19th, 2010, 01:52 AM   #9
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Re: 570 Thumper Racing 610cc kit ???

yeah would prefer a off-the-shelf 650cc sloper but hey if Moses wont go to the mountain and see the light then bugger it I'll make my own
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July 19th, 2010, 03:09 AM   #10
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Re: 570 Thumper Racing 610cc kit ???

sounds good

I wonder.... the old 80mm crank would surely fit in the LDC with a bit of butchering
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