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Can anyone tell me the difference if any between:
'HYPER SStage eco Bore up kit ( 181 cc)" and "HYPER SStage Bore up kit ( 181 cc )"
The ECO has 10.5 to 1 compression so it's setup for pump gas and the S Stage has 11 to 1 compression and needs high octane gas.
 

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We have these on order.

20 qty 181 cc kits..
15 qty 143 cc kits

They are shipping our 143cc kits in the next few days.
They are shipping our 181cc kits in the next 14 days.

If anyone is interested.

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ANOTHER BIG BORE KIT SOURCE MADE IN JAPAN FOR JAPANESE BIKE:
.::: YUMINASHI GLOBAL OFFICIAL WEBSITE - .::: MSX125 / Honda GROM CYLINDER KITS
...THAT SOME YOU-TUBERs have installed and video-blogged about...
with www.youtube.com titles that include these words: "GROM, 150cc, 160cc , 180cc, 200cc BIG BORE KIT"
is a 160cc rider's view video


I am hesitant to go "over-bored" {pun intended}... AND RUN IT WIDE OPEN .
.... due to concerns that "my fat self" atop a modified {more power-full} engine might overload that tiny little 4-speed gearbox between my spindly shins and it might get so overloaded that it explodes sending oily gear fragments through my thin hide and into my puny old bones... "LIKE ...OUCH ! AND THAT SOUNDS GRUESOME ...FER SURE ..."
 

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thank you.... considering the 160cc to avoid overstressing gear box...
this supposedly tested, matched, and pre-tuned kit with real wourld reported
top speed of 122 k /h = 75 {+/-} mph might be enough to propel a 200 pound rider at 100k/h or 62 mph which is faster than the 81 k/h or 51 mph that I usually drive without risking gearbox explosion or the need to experiment and tune-tinker with numerous different parts..
 

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IF STOCK JUST WILL NOT DO...maybe this one will 160cc YUMINASHI ULTIMATE GROM KIT..

Honda MSX125 160cc Kit | eBay


HEADED INTO TOWN, JUST AS SOON AS MY FLASHY NEW "HARLEY-DAVIDSON CREDIT CARD" ARRIVES IN THE MAIL... TO PURCHASE A NEW BONE STOCK GROM.
YAEGER CYCLE of SEDALIA, MISSOURI is A LOCAL DEALER who SELLS HARLEY-DAVIDSON, HONDA and others... Using the HARLEY-DAVIDSON CREDIT CARD FOR THE FIRST TIME IN THIS WAY... TO BUY A TINY HONDA.... SHOULD BE GOOD FOR A GIGGLE AND GRIN OR MAYBE A FEW. AND, PERHAPS AT LEAST ONE, "OH NO! ...YOU DID'NT....!" REACTION.
YEP, SOME GEEZERS HAVE AN ODD SENSE OF HUMOR... AND I TRY TO THINK THINGS THROUGH...
THE GROM... ALMOST CERTAINLY...

THE YOSHIMURA 160CC ULTIMATE GROM KIT ...Honda MSX125 160cc Kit | eBay
...MAYBE...BUT I GOTTA TRY IT STOCK FIRST.
 
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