The Walmart Special (Kent Fixie/Single Speed 700c)

For this build I am using the Kent Fixie 700c, available from walmart for a cool one hundred bucks. I picked this frame due to its simple construction, consistent narrow tube diameter, wide pedal crank and low price. I initially wanted to buy a Thruster 700c (which is basically the exact same bike) but there were none available. Another deciding factor for this frame were numerous successful motorizing projects that I found via google and youtube. The bike I got was kind of sloppy (misaligned wheels, crooked brake pads, slightly crooked handlebars) but all those can be fixed pretty easily.

3-4ths profile.jpg
Not bad looking at a glance but a closer inspection reveals pretty humble components. Love the red tires though!

front profile.jpg
The bike has a very narrow profile due to the short handlebars. I'll definitely be careful on turns with this thing.

rear hub detail.jpg
The rear hub with a single-speed gear and fixie gear. The builds I've seen have attached the engine drive sprocket to the fixie gear, but I'm considering a Manic Mechanic clamshell mount.

line for drive train.jpg
My mental estimation is the chain should have a very good path to the engine mount, and the idler pulley won't give me nearly as much trouble as my last build.

The engine kit I will be installing is the flying horse 66cc from bikeberry.com. I've had good experience ordering several individual parts from them before, and they are an established business who have to maintain some level of responsibility for delivering orders (my last supplier screwed me over). I have a dual-cable brake lever that I'll install to free up the left handle for the clutch.

I'm waiting on the engine delivery so probably not much more news until next week.
 
My 2 cents is the bike is totally wrong for motorizing.

The caliper brakes are poor (well, better than a single coaster brake) and one day you WILL need to stop NOW and will not be able to.
I prefer to avoid pain and injury or worse.

Hooking up a dual brake lever to an already wimpy brake deal renders the force you are able to apply (with one hand rather than 2) into 1/2 of the effort at the wheels.
This is not considering the possible difference in pivot point and lever differences.

Seriously, think about a bike with a minimum of 2 V brakes and bigger around tires.
The feature of having gears is great too, as is a spring fork.

I love post as above!Mine works very well.If you need any advice PM me.Fly
 
:-/ why a 700c? Are you tall? I believe that the larger rim is not as strong as the 26" in. rim. But that's my opinion. I prefer cantilever, center pull or disk brakes. With the brakes that come on that bike, the duel pull brake lever is a must! Make sure the rear brake pulls first. Post finished pics please. Here in Southern OR. everyone wants 29 in. bikes (I have not seen a motorized one yet). I'll stick with 26".
For this build I am using the Kent Fixie 700c, available from walmart for a cool one hundred bucks. I picked this frame due to its simple construction, consistent narrow tube diameter, wide pedal crank and low price. I initially wanted to buy a Thruster 700c (which is basically the exact same bike) but there were none available. Another deciding factor for this frame were numerous successful motorizing projects that I found via google and youtube. The bike I got was kind of sloppy (misaligned wheels, crooked brake pads, slightly crooked handlebars) but all those can be fixed pretty easily.

View attachment 55286
Not bad looking at a glance but a closer inspection reveals pretty humble components. Love the red tires though!

View attachment 55287
The bike has a very narrow profile due to the short handlebars. I'll definitely be careful on turns with this thing.

View attachment 55288
The rear hub with a single-speed gear and fixie gear. The builds I've seen have attached the engine drive sprocket to the fixie gear, but I'm considering a Manic Mechanic clamshell mount.

View attachment 55289
My mental estimation is the chain should have a very good path to the engine mount, and the idler pulley won't give me nearly as much trouble as my last build.

The engine kit I will be installing is the flying horse 66cc from bikeberry.com. I've had good experience ordering several individual parts from them before, and they are an established business who have to maintain some level of responsibility for delivering orders (my last supplier screwed me over). I have a dual-cable brake lever that I'll install to free up the left handle for the clutch.

I'm waiting on the engine delivery so probably not much more news until next week.
 
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