166fmm 6 speed engine

MeatHammer · 04-15-2021, 11:54 AM

I have been searching for an extra 165fmm engine for my x22R to do performance mods to and then swap it out for the stock one. I keep coming across the 166fmm 6 speed engine that says it has better performance. Does anyone know anything about the 166fmm? Is it bigger, faster, better gear ratio etc?

**JerryHawk250** · 04-15-2021, 01:38 PM

if you are talking about the Loncin RE250 that would almost be a direct swap. The Loncin RE250 is a counter balance engine so it does have a slight bulge on the front of the engine. Might or might not require a slight modification of the front lower engine mounting bracket.

04-15-2021, 11:54 AM	#1
MeatHammer Join Date: Apr 2020 Posts: 67	166fmm 6 speed engine I have been searching for an extra 165fmm engine for my x22R to do performance mods to and then swap it out for the stock one. I keep coming across the 166fmm 6 speed engine that says it has better performance. Does anyone know anything about the 166fmm? Is it bigger, faster, better gear ratio etc?
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04-15-2021, 01:38 PM	#2
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,552	if you are talking about the Loncin RE250 that would almost be a direct swap. The Loncin RE250 is a counter balance engine so it does have a slight bulge on the front of the engine. Might or might not require a slight modification of the front lower engine mounting bracket. __________________ 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel
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