Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: Will this work on a mens 26" bicycle?
Document: This can be inconvenient but tolerable. The gears are not too widely spaced and It may work better on the road as opposed to strictly creeks and woods. Still I can't complain too much after I remember what I paid for it.The hardware is much better quality than I expected. All the bolts on the outside of the case, jug and head are coated (nickle or chrome not sure) and resist corrosion. The CDI unit is small and easy to mount and the connectors are of an accaptable quality.
This engine was not a direct replacement for the CT-70. It took some work. The wiring took some research to figure out, the exhaust pipe had to be altered (welding),clutch lever with cable added and the foot pegs required spacers with longer bolts due to the right peg hitting the Lifan's wider case, the chain guard had to be trimmed to fit with another bolt and spacer added also the new carb did not have a fuel valve on it so I had to rig a separate valve.
You will need a clutch cable 2. If you want the old lights to work, you will need a wiring kit & a 12 to 6V converter 3. The old foot peg mounts will NOT fit because the new engine is a lot wider than the old engine so you need to get a whole new foot peg mount bracket setup 4. The old gas lines need to be modified or cap one end of the two lines because the new carb only has one fuel line. 5.
this little engine fit the frame of my ct 70 without any problem, we did have to widen the kick stand\peg bracket to account for the additional width of the engine compared to the original 70 cc motor, very strong running,
lots of power bolted right up ! well worth the money start easy runs good shifts good. bolted into  my wildfire wf 49cc moped
installed very easy.kicks and runs perfect thanks.lots of low end power it climbs great i installed this motor myself in 45 min.
With the Lifan installed the bike runs like a spotted ape. It starts first kick. Neutral is a bit difficult to find, so it may be a better idea to go with an all gears up model. That's the only reason I gave it 4 stars instead of 5. Good bang for your buck!
Was happy with this purchase, wiring diagram would have been helpful though. To much packaging oil, had me worried it was leaking.
The first two have been reliable, powerful, and easy to install in a variety of bikes. There are plenty of places on the internet to find instructions for this engine. Put one of these engines in an older bike and it will come alive; and other people will drool over it when they see what it will do.The oil in the packing material bothered me when I first saw it.
The engine does run hot and I am not sure if it is due to the lean jetting or if it is hot by nature. No appearent damage has resulted from high engine temps and it maybe completly normal.The gearing is alright. I have not had a miss shift or anything sketchy that would make me question the strength of the trans. However, I find mysellf searching for a non exsistent 5th gear and first is just alittle too high.
Answer: no