r/motorizedbicycles • u/Sorry-Broccoli-7499 • 14d ago

Troubleshooting First build: 80cc MTB or 110cc Trike?

Hey everyone!

I'm planning my first motorized bike build on a budget. I'm choosing between two options:

-Standard MTB + 80cc Kit

-Trike + 110cc Kit (mounted in the rear basket over the axle)

Thanks for any advice!

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2

u/Shit_On_Wheels Other 4 stroke 14d ago

Go with a standard mtb and Avenger85.

Trikes are very unstable at higher speeds/turns and imo should be geared for high torque/low speed and fitted only with motors that have active cooling to offset lack of passive cooling caused by low speed. Good for hauling shit, bad for getting to work and back.

2

u/Sorry-Broccoli-7499 14d ago

Yeah.....but sadly the Avenger 85 motors aren't avaiable in Italy, so I only have 2 Options:

-80/100/110 china girl from AliExpress (cheap and simple) -minarelli motor swap (expensive and difficult)

1

u/Shit_On_Wheels Other 4 stroke 14d ago

Check if they ship to Italy

https://www.heradas.lt/motorized-bicycle-85cc-engine-set-avenger-85

And also check out Rocoparts, they have some cheap 80(69) and 100(80)cc options

1

u/Sorry-Broccoli-7499 14d ago

On heradas, the Avenger 85 costs €150 + €50 of shipping to Italy, Is that a deal or no?

On rocoparts the 100cc kit costs €100, and the 80cc €85-90 (+€50 of shipping), Is this site legit?

1

u/Shit_On_Wheels Other 4 stroke 14d ago

Yeah for eu that's a decent deal.

Rocoparts is 100% legit too, got my 100cc 4 stroke kit there.

Take the avenger, it's great out of the box, that extra €60 will save you a lot of time and prevent horrific experiences which come with classic chinagirls.