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Old 11-29-2019, 04:45 PM   #1
Racer156
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Join Date: Nov 2019
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Motorcycles: XL500S
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Thinking about an RS125 swap for mini racing

Like the title says. Iíve seen a lot of rs85s around. 2valve 4 strokes to 230 ccs are legal, anyone ever try an xr200 swap? If so any pics?
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Old 11-29-2019, 06:09 PM   #2
Racer156
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Seems like a air cooled 2 valve thumper would be a lot of fun in the light Rs Chassis. I’m guessing it would be a tight fit bit these guys look like they tried it:
https://www.ozbucketracing.com/Techn...race-bike.html
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Old 11-30-2019, 06:55 PM   #3
Racer156
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BTW I guess I should say I’m looking for a RS125 or RS85 project or bike or whatever. Preferably in the PNW.

Nobody’s tried the air cooled 4 stroke swap huh? How about an old air cooled 70s CR two stroke 125? It’s about the same hp as the modern 85s.....anybody?
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Old 12-01-2019, 10:25 AM   #4
minoru cha
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Good luck with challenging, but fun project!
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Old 03-09-2020, 06:34 AM   #5
adamysr
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I know this is an older thread so maybe you already have a project going but if you wanted an air cooled motor look into a xr100/crf100 motor. This guy in LA had one swapped into RS chassis for his son, Pretty cool bike.
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Old 08-26-2020, 08:38 PM   #6
Racer156
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Bump....

Anybody know where thereís a 96+ RS125 in the PNW? Been hitting the interwebs pretty hard and have located about 5 on the east coast for a decent price.
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