Will this be powerful enough?

Jack Swett

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I have a 26cc Homelite weedeater engine (Homelite UT-21967) and I was thinking of mounting it to a trike with a chain-drive to power both rear wheels. I was thinking of gearing it so its top speed was between 20-25mph. Will that give me enough torque to move me around at those speeds and on very small hills unassisted? I'm over 200lbs.
 
Even if geared correctly? What if i gear it down to have a top speed of just over 15mph?

I was also looking at the 99cc 2.5-3hp harbor freight engine for really cheap. I know everybody always says you get what you pay for, but they get good reviews.
 
Even if geared correctly? What if i gear it down to have a top speed of just over 15mph?

I was also looking at the 99cc 2.5-3hp harbor freight engine for really cheap. I know everybody always says you get what you pay for, but they get good reviews.
Forget about a 26 cc for a trike.
The 99 cc HF would be a great choice for a trike and reliable to boot.
 
You will need to gear a 26cc engine down to 3mph to have any chance.
Might as well walk, because it will be a faster method of going places.
 
I tried to buy the 99cc HF engine for my trike in 2016, will not sell in Ca. so I went with the B&S 127cc, 3.5 HP and 5.5 Ft-Lbs. of Torque.
 

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