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428 conversion

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Has anyone ever done the sidewinder 428 conversion to their bike? I have an XR200 and it says the kit will work for my bike too... Just wondering if it is as good as they say it is.

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I was going to go Sidewinder but spent the cash elsewhere. I think my next mod will be a Renthal 428 kit of CRF's only. Might be awhile money for making a room for a new baby in the family comes first.

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When I did the 428 conversion on my CRF150, I checked the prices at Side winder and Sprocket Specialists. Sprocket Specialists had the better price by about $40. Not sure what the prices are now, as this was two years ago.

As for improvement? Well, if you neglect the chain and sprockets, or ride in extremely dirty conditions, (sand kills chains) stay with the 520. If you clean and lube regularly, there is a slight benefit in the 428. I noticed improved engine braking with the 428, and theoretically, the 428 should allow more horse power to reach the ground as there is less rotating mass in the drive train to eat up the HP.

Don't let anyone tell you that a 428 chain is too small for a XR200. According to DID chain company, a 428 chain is suitable for up to a 125cc two stroke. Modern, liquid cooled 125 two strokes have near twice the horse power as a XR200.

Price may also be a factor. You can probably get OEM replacement chain and sprockets for a lot less then the 428 conversion. Weigh it out, check the pros and cons before buying.

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Will do... Im just trying to get somewhat cheap mods on my bike. There is a budget even for the dirt bike addict.

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