Buy 80cc or 100cc?

OrionSphere

Active Member
Local time
1:31 PM
Joined
Feb 19, 2024
Messages
138
Location
Shawnee, OK
I'm looking at getting a cheap 66/80cc OR a 100cc motor kit on amazon for my secondary, old bike.

Will a 100cc motor be less reliable than an 80cc, and will it be harder to find replacement parts?

This is the 100cc engine I have picked out on Amazon: PEXMOR 100cc Bicycle Engine Bike Motor Kit, 2 Stroke Gas Motorized Bike Conversion Kit, Gasoline Petrol Bicycle Motor Refit Full Set for 26-28" Bikes with V-Frame,Super Fuel-efficient https://a.co/d/fsiS2RN
It has the highest ratio of reviews to total sales

And if I were to get an 80cc engine, it would be: Seeutek PK80 80cc Bicycle Engine Kit 2 Stroke Gas Motorized Bike Motor Kit Upgrade with Speedometer https://a.co/d/4r3J2we
A Seeutek, which has some history in this forum of being reliable.

I would prefer the 100cc, but if it's really just a bad idea, for one reason or another, please let me know.
 
Links to Amazon may include affiliate code. If you click on an Amazon link and make a purchase, this forum may earn a small commission.
I'm looking at getting a cheap 66/80cc OR a 100cc motor kit on amazon for my secondary, old bike.

Will a 100cc motor be less reliable than an 80cc, and will it be harder to find replacement parts?

This is the 100cc engine I have picked out on Amazon: PEXMOR 100cc Bicycle Engine Bike Motor Kit, 2 Stroke Gas Motorized Bike Conversion Kit, Gasoline Petrol Bicycle Motor Refit Full Set for 26-28" Bikes with V-Frame,Super Fuel-efficient https://a.co/d/fsiS2RN
It has the highest ratio of reviews to total sales

And if I were to get an 80cc engine, it would be: Seeutek PK80 80cc Bicycle Engine Kit 2 Stroke Gas Motorized Bike Motor Kit Upgrade with Speedometer https://a.co/d/4r3J2we
A Seeutek, which has some history in this forum of being reliable.

I would prefer the 100cc, but if it's really just a bad idea, for one reason or another, please let me know.
The pexmor or the CDH 100cc are a good engine. They need some port cleanup work. But also with a bit of work, they are a screaming demon.
 
Links to Amazon may include affiliate code. If you click on an Amazon link and make a purchase, this forum may earn a small commission.
I'm looking at getting a cheap 66/80cc OR a 100cc motor kit on amazon for my secondary, old bike.

Will a 100cc motor be less reliable than an 80cc, and will it be harder to find replacement parts?

This is the 100cc engine I have picked out on Amazon: PEXMOR 100cc Bicycle Engine Bike Motor Kit, 2 Stroke Gas Motorized Bike Conversion Kit, Gasoline Petrol Bicycle Motor Refit Full Set for 26-28" Bikes with V-Frame,Super Fuel-efficient https://a.co/d/fsiS2RN
It has the highest ratio of reviews to total sales

And if I were to get an 80cc engine, it would be: Seeutek PK80 80cc Bicycle Engine Kit 2 Stroke Gas Motorized Bike Motor Kit Upgrade with Speedometer https://a.co/d/4r3J2we
A Seeutek, which has some history in this forum of being reliable.

I would prefer the 100cc, but if it's really just a bad idea, for one reason or another, please let me know.
Unless I am mistaken.

100cc kits are 80cc
and 80cc kits are 66cc

This is because of china measurement vs. the rest of the world.

Torque (YD)vs. top end (PK)
 
Links to Amazon may include affiliate code. If you click on an Amazon link and make a purchase, this forum may earn a small commission.
Unless I am mistaken.

100cc kits are 80cc
and 80cc kits are 66cc

This is because of china measurement vs. the rest of the world.

Torque (YD)vs. top end (PK)
I think 100cc is 77cc and 80cc is 66cc

I'm just throwing out those numbers because they're the numbers you have to shop for
 
I decided I need 2 motorized bicycles to have reliable transportation so when one is broken I can drive the other while I wait for parts. An infinite cycle.

That's why I had the phantom motor and now this
 
I personally like the steel sleeve 100cc engines. Or 79.5cc how ever you wanna look at it.
 
Back
Top