Thinking about an RS125 swap for mini racing - BARF

Racer156 · 11-29-2019, 04:45 PM

Like the title says. I’ve seen a lot of rs85s around. 2valve 4 strokes to 230 ccs are legal, anyone ever try an xr200 swap? If so any pics?

Racer156 · 11-29-2019, 06:09 PM

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

Racer156 · 11-30-2019, 06:55 PM

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?

minoru cha · 12-01-2019, 10:25 AM

Good luck with challenging, but fun project!

adamysr · 03-09-2020, 06:34 AM

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.

Racer156 · 08-26-2020, 08:38 PM

Bump....

Anybody know where there’s 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.

11-29-2019, 04:45 PM	#1
Racer156 Newbie Join Date: Nov 2019 Location: Seattle Motorcycles: XL500S Name:	Thinking about an RS125 swap for mini racing Like the title says. I’ve seen a lot of rs85s around. 2valve 4 strokes to 230 ccs are legal, anyone ever try an xr200 swap? If so any pics?

03-09-2020, 06:34 AM	#5
adamysr Veteran Join Date: Jan 2007 Location: Ripon Motorcycles: honda RS150r Name:	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. __________________ thanks to : Panolin Lubricants, and FFR

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11-29-2019, 06:09 PM	#2
Racer156 Newbie Join Date: Nov 2019 Location: Seattle Motorcycles: XL500S Name:	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

11-30-2019, 06:55 PM	#3
Racer156 Newbie Join Date: Nov 2019 Location: Seattle Motorcycles: XL500S Name:	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?

12-01-2019, 10:25 AM	#4
minoru cha Veteran Join Date: Apr 2005 Location: san francisco Motorcycles: 04 Honda nsr92r and 97/04 Honda rs85 Name:	Good luck with challenging, but fun project!

08-26-2020, 08:38 PM	#6
Racer156 Newbie Join Date: Nov 2019 Location: Seattle Motorcycles: XL500S Name:	Bump.... Anybody know where there’s 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.