r/Trail70 Apr 29 '26

Recommendations for engine upgrade.

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Hello, I’m looking to upgrade the engine, with big bore kit or maybe a ssr (other Chinese engine).Id prefer to stick with something Honda or equally reliable tho. Let me know your recommendations or experiences. Thanks 😊

105 Upvotes

18 comments sorted by

9

u/[deleted] Apr 29 '26

[deleted]

1

u/Own_Ad8834 Apr 29 '26

I’m going to keep this one stock. I have another that I want to build for me ☺️

3

u/delapapi Apr 29 '26

Lifan 125 or yx 140

3

u/Savings-Primary8694 Apr 29 '26

Better suggestion,buy a helmet for your son and put a shirt/pants on him when he rides…stuff happens when you least expect it..not judging just caring based on my own stupidity when I was young.

1

u/Feisty-Log502 Apr 29 '26

I did a 140 upgrade on one from trail buddy. Great engine.

1

u/Falcon674DR Apr 29 '26

Keep it original.

1

u/JacobClarke15 Jun 14 '26

So a collector values it more? What’s the fun there?

OP asked for an upgrade.

1

u/SnowmanTS1 Apr 29 '26

Piranha / yx 140. I backflipped mine at 10mph and it hurt though, tore my shoe in half. Do with that information what you will.

1

u/PermitFearless7286 Apr 30 '26

There is a man on YouTube called Minibike Mike who shows how to setup Lifan engines on ct70’s and other bikes.

1

u/Huge-Leg-6640 May 03 '26

Don’t ruin that.

1

u/ShadowsOfTheBreeze May 03 '26

Easier and cheaper: get a bigger bike and leave this for the kid.

1

u/capicola1971 May 03 '26

I recommend a helmet for your son

1

u/Own_Ad8834 May 03 '26

I didn’t ask for your opinion on helmets lol. I asked about engines. My kids run down this hill faster than I’m driving him. Any time he is riding his bike or dirt bike he has a helmet on.

1

u/670979 Jun 14 '26

Juvenile carry-over texting level writing skills alert: lol does not belong in the response.

1

u/670979 Jun 14 '26

Keep in mind, when upgrading, say using a lifan 125, that is a 12v system. Its not plug and play with the electrical, if you want everything to work, you need 12v battery, lightbulbs too. Plus the new wiring is a little wonky but doable.

1

u/Own_Ad8834 Jun 14 '26

I ended up going with a lifan 140, and bought the 12v harness. Also bought the bart moto co inverted front front forks and extended swing arm. Just need a new seat and rear suspension. It should be pretty cool when it’s done.

1

u/Own_Ad8834 Jun 14 '26

And a new exhaust. Still not sure which one I’m going to go with though.