Just finished...!

My second build. Let me remind everyone that imitation is the sincerest form of flattery. This bike was inspired by willimoto's roadracer found here:

http://www.motoredbikes.com/showthread.php?t=8898&highlight=roadracer

Mine is not nearly the specimen that his is, but I'm pretty happy with the results:

As with my last bike, it was pieced together with parts from various bikes that had been thrown away. The frame was a 24" girls style so I cut the bar out and welded in a 3/4 pipe horizontally. The tanks are PVC, since I had great success with that material before. The clear fuel line below the vented cap gives me a good fuel reading at all times. I reinforced the frame with 11ga. gussets which didn't add much weight at all. The most interesting thing on the frame is the rear motor mount:

I made the "ears" from 1/4" flat and the tube is a 3/4 pipe with 1/2" heater hose through the middle. A 1/2" bolt holds it all in place. The mount is rock-solid but isolates the engine from the frame with 100% rubber. I made another mount for the front, but the engine that was shipped to me was rounded out more in the front so the 3/4" pipe wouldn't work. I clamped it directly to the frame with some thick rubber pads in between.

Since I'm too cheap to buy one, I fabbed up my own double pull brake lever:

I took two identical levers and securely "piggybacked" them together. They work pretty well. I have some street tires on order, and I'm going to try a 36 tooth sprocket. I'm also going to attempt to build my own boost bottle in the near future - once again, the "cheap factor" arises...

 

[GearNut]

Your bike came out really nice!
You do good work.

 

[rockvoice]

Nice job man, i love it.

 

[rkbonds]

Nice build. Could you give some more details about the gas tank and what all you used to complete the tank?

 

[possenti]

Nice build. Could you give some more details about the gas tank and what all you used to complete the tank?

I'll try to explain: It's 2" PVC. Instead of using end caps, I "contoured" the ends to accept 1 1/4" PVC laid in at an angle to sort of "wrap" around the handlebar stem. I didn't really get the desired effect because I had to space it back further than I planned but it turned out OK. It took several hours of grinding and sanding to get the ends to fit. I made the cuts with a bevel, so when the pieces joined up, there would be a "V" shaped gap. I then cleaned, primed and glued the ends on the tanks. After that dried, I filled in the "V" with several layers of JB weld. It took about a week to fill, let cure, sand and fill again. The fill cap on top is threaded 1" PVC fittings. As for the 1/4" barbs for the fuel lines - I drill the PVC, dope up the barb threads and run them into the hole. I was confident enough with this bonding technique that I didn't even leak test it until the bike was sanded, painted and engine kit was installed. (I admit I was sweating a bit while finishing the build...)

A cool feature is the ability of the top tank to hold a little reserve gas. Due to the slant of the frame, the area near the seat keeps some in it after the rest has drained into the bottom. If I run out, I can get off and tilt the bike forward to drain more into the lower tank to (hopefully) get home .

 

[bluegoatwoods]

Hey, man, GearNut is absolutely right. You do very good work.

 

[wheelbender6]

I like the motor mounts and gussets you added to the frame too. That's a bullet proof build.

 

[Top Cheese]

I don't even know what to say. Thats just amazing.

 

[Chris Crew]

Wow

You're showing us the way, young feller.

 

[machiasmort]

Possenti,
Long time no hear!

Now I know why! Nice build man! 1 Q, What kind of a frame did you start with (donor's also) and what welding method did you use. Looks like you got good penetration on the motor mount.