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General Category >> Rubber Side Down! >> My Rat Bike Sort of ready.
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Message started by edgwoodri on 05/12/22 at 05:03:31

Title: My Rat Bike Sort of ready.
Post by edgwoodri on 05/12/22 at 05:03:31

'Ive been tinkering with this bike. Just an around the neighborhood ride. Many ideas came from this board. I think of it like the Schwinn Sting Ray I had in 6th grade, if I could I would just lay it on it's side when I jump off.

Title: Re: My Rat Bike Sort of ready.
Post by SoC on 05/12/22 at 19:18:48

edgewoodri, Not really a Rat bike looks like a pretty clean build. Good luck with it.

Title: Re: My Rat Bike Sort of ready.
Post by Eegore on 05/13/22 at 08:25:56

Not sure how everyone defines "Rat" but the bike looks good.

Also that's the PTX right?

Title: Re: My Rat Bike Sort of ready.
Post by Ruttly on 05/13/22 at 12:30:54

Looks good , kinda missed the mark of Ratbike by quite a bit !

Title: Re: My Rat Bike Sort of ready.
Post by justin_o_guy2 on 05/13/22 at 13:52:19

IDK where you live, but I'm a very serious fender appreciating guy.

Title: Re: My Rat Bike Sort of ready.
Post by edgwoodri on 05/13/22 at 14:16:02

Yes it is PTX. My favorite Lounge.
By Rat, I mean not fancy,, or polished up, just ride around and not worry about it.

6A4A48405D4A2F0 wrote:

Not sure how everyone defines "Rat" but the bike looks good.

Also that's the PTX right?

Title: Re: My Rat Bike Sort of ready.
Post by edgwoodri on 05/13/22 at 14:21:42

I just Googles "Rat bike", yup, that's not me.

103736362E3B420 wrote:

Looks good , kinda missed the mark of Ratbike by quite a bit !

Title: A few more pics commiong
Post by edgwoodri on 05/13/22 at 14:24:17

Different angle Today I removed the Air box and put on a Pod Filter.
Probably switch back.

Title: Re: My Rat Bike Sort of ready.
Post by edgwoodri on 05/13/22 at 14:27:07

Another one.

Title: Re: My Rat Bike Sort of ready.
Post by justin_o_guy2 on 05/15/22 at 12:03:39

Intake manifold design is important to performance. The pulses created by the intake valve matter. The Volume Between the air filter and the valve needs to be at least the volume of the cylinder.

Title: Re: My Rat Bike Sort of ready.
Post by edgwoodri on 05/15/22 at 12:12:40

What is that volume?
650cc?

4D5254534E4978487840525E15270 wrote:

Intake manifold design is important to performance. The pulses created by the intake valve matter. The Volume Between the air filter and the valve needs to be at least the volume of the cylinder.

Title: Re: My Rat Bike Sort of ready.
Post by edgwoodri on 05/15/22 at 12:14:34

Volume "Between" or "including"

425D5B5C41467747774F5D511A280 wrote:

Intake manifold design is important to performance. The pulses created by the intake valve matter. The Volume Between the air filter and the valve needs to be at least the volume of the cylinder.

Title: Re: My Rat Bike Sort of ready.
Post by justin_o_guy2 on 05/15/22 at 12:34:19

I'm not some carburetor smart guy and I'm not the guy to try to teach something here. I'm
Just an Old Guy who has seen stuff that should be paid attention to IF the goal is squeezing the most outta these things.. I'm just tossing out food for thought for you. There are hours and hours of YouTube videos on exhaust design and theory and intake design theory. I'm just trying to help you get what you are looking for.

Title: Re: My Rat Bike Sort of ready.
Post by edgwoodri on 05/15/22 at 12:51:26

Didn't intend to go this road, but it's kind of interesting
https://www.youtube.com/watch?v=q9ZcPtvTKpY

5D4244435E5968586850424E05370 wrote:

Title: Re: My Rat Bike Sort of ready.
Post by zipidachimp on 05/15/22 at 19:42:18

Edg: can you tell us about the wheels, 18" ?
Cheers! 8-)

Title: Re: My Rat Bike Sort of ready.
Post by Dreanimal on 05/16/22 at 10:25:10

Very interested in details on the wheels, mine are getting pretty corroded and will need to be replaced soon.

Title: Re: My Rat Bike Sort of ready.
Post by edgwoodri on 05/16/22 at 15:37:39

Yes, 18" got them from Dave here on the site.
Tires are some cheap Chinese from Amazon. Fine for me I don't ride but around my little village.
Seat is held on with Velcro for now, this weekend Ill do something better.

Title: Re: My Rat Bike Sort of ready.
Post by edgwoodri on 05/16/22 at 15:47:15

Tires from JP Cycles, not Amazon.

Title: Re: My Rat Bike Sort of ready.
Post by Edub on 05/20/22 at 15:36:32

Great build, Edgwoodri! I really like a lot of what you’ve done here. Any details, progress photos, etc. would be very welcome! How do you like riding it post-modifications?

Title: Re: My Rat Bike Sort of ready.
Post by edgwoodri on 05/21/22 at 07:51:19

Same bike a few yrs ago. Actually I bought this used one Christmas for my wife, she took one look and laughed, "No way" she said.

Title: Re: My Rat Bike Sort of ready.
Post by Edub on 05/22/22 at 00:12:14

Well, it’s good that you kept it, a very cool custom resulted from that decision!

Title: Re: My Rat Bike Sort of ready.
Post by edgwoodri on 05/22/22 at 12:57:36

Thank you.

Took it out for a ride into Providence today. Lots of people gave me the thumbs up. At one stop light a fella said " Is that street legal?"
"Who knows" i said.
It's certainly a lot of fun for this 63Yr old.