Author Topic: PRP 250R Build (Read 8038 times)

Deuce · « **on:** July 04, 2013, 12:30:58 AM »

Well with the new site I figured its about time that I should share some of my project that I have been taking time with and slowly working on. Originally was going to just post up some finished pictures after she is done (whenever that may be), but why not start now. Just a heads up before you read any further, this build has taken a while now to acquire parts and probably wont be completed anytime soon.

Anyway the bike is getting built on a PRP chassis I picked up last year. It was in need of some work and some finishing touches now but after looking at it I found it has some history. This is the chassis that former pro racer Ben Bettis use to race. The frame made its way through some hands and now finally is in mine where it is going to stay for a long time.

Here is what the bike looked like after Bettis had it and sold it to its next owner (well down the line before me).

By the time I got the chassis it was nothing but the frame, swingarm, and rear shock, also looking a little different and was in need of some TLC (more about this later).
My plans are to bring it back to the same general color scheme as when Ben raced it, but make it a little more my flavor. The biggest obstacle will be finding a set of mint orange fullbores since they probably wont be making any more fender sets anytime soon.

Deuce · « **Reply #1 on:** July 04, 2013, 12:42:37 AM »

As for how the bike is going to be setup when it is completed (I have most of the parts already), the list will be as follows

Motor: Duncan built 340 on oem replacement 88/89 cases
Duncan PC2000 340 Cylinder
Yukon Gears
Hinson full clutch assembly
Duncan quick change clutch cover
01 CR 250 Ignition
PWK 39 that appears to be bored and polished by Duncan to a 40 something (need to measure it) that was matched for this motor
Boyesen RAD Valve

Exhaust I'm going to play with, but I have the options of the following: Duncan Eliminator, Sparks TT, Sparks MX, and I want to find a 03 Duncan race pipe as well

Chassis: frame is PRP (self explanatory on this one)
Lonestar 17.5" no link swingarm - this one is interesting, I didn't know exactly what it was until I removed some of the powder coating and its actually a LSR copy of the Roll Lobo. I didn't realize it for the longest time until I finally compared it to the Lobo swinger on my Arens bike
Lonestar DC4 +3 +1 A arms (was debating on using these or Gibson's, but figured I'd keep with the LSR since I have the LSR swinger).
Lonestar Axcalibar axle
Axis shocks front and rear
Lonestar +2 +1 anti vibe stem
Baldwin 1 1/8 anti vibe fatbar mount / clamp
Duncan front bumper
Douglas conventional beadlocks front and back
AC nerf bars (these were re done to be custom fit to this pro peg chassis)

And I'm sure plenty of more parts that I am forgetting about that I have for it but are stored away.

Like I said, I want to stick with orange fenders and am going to be doing the frame and swingarm in blue, but it will be a darker blue this time. The a arms are chrome.

Pictures of the chassis and work done to it will come when I get time to snap some and show what was done and the progress of what will be done

05450r · « **Reply #2 on:** July 04, 2013, 12:49:14 AM »

Looking forward to this build,that swingarm is cool,along with the rest of the parts list!

Snowmaker10 · « **Reply #3 on:** July 04, 2013, 01:35:34 AM »

Sounds like you have the machine headed in the right track! I have always been curious how those no-link frames ride.

DOUGLAS · « **Reply #4 on:** July 04, 2013, 08:12:32 AM »

Awesome keep us in the loop

Deuce · « **Reply #5 on:** July 04, 2013, 02:30:42 PM »

Here are some more pictures to get things up to date...

Here is the frame currently before its finishing touches

When I got the frame, someone down the line drilled out the upper to steering stem mount bungs and just put a nut and bolt through the frame to hold the top of the mount. This was not ok in my book so recently I finally was able to take the frame out to Mike at HRE Atv for him to work some of his magic. Mikes fab skills are pretty darn amazing in my book and I would recommend anyone that needs work done to send it his way. For me it was well worth the 3 hour drive one way.

I was also not satisfied with the steering stem stop. The original stop was a little piece of flat metal that was welded to the bottom mount / bearing holder. Someone somewhere down the line decided to add a larger plate to it and some bubble gum weld. The biggest problem when they did it was it was off center. This may have been great if the frame was to be used for racing nascar, but I want to be able to turn well both to the left and right. So I had mike correct it as well. He built a jig off an OEM frame and had this part fabbed up and installed in no time.

The last thing I need to get done to the frame before I strip her and get her ready for some new powder is figure out a skid plate. There are plenty of rocks in my area, and even though I build my bikes for the MX track, I will also take them out with my buddies because we have some open trails around and permission to ride on some private properties that are pretty well open.

Deuce · « **Reply #6 on:** July 04, 2013, 02:31:13 PM »

Here are some shots of the swingarm I was talking about. Like I originally said, when I got it no one was sure if it was a Lonestar or PRP swingarm. I had not seen any others like it so all I knew is it was a swingarm and different from most. I finally found out that it was a Lonestar for sure after it was stripped of some of its powder because a few areas needed some touch up. The swingarm is also going to be stripped and powdered to match the frame. But more about the swingarm... When I was looking at other lonestar no link swingarms I had not ever come across one like this. So after stripping the powder in the spot and finding out exactly what it was, I gave Lonestar a call and spoke with Heath out there. As I was looking at it I realized the swingarm looks really funny and a lot like my Lobo swingarm on my Arens chassis (more about this bike to come when I get done with the PRP). So Heath told me that the swingarm was indeed identical to the Lobo and Lonestar produced a small batch of them. But not many exist because they never sold and were popular like the Lobo. This I figured is pretty cool just because its more rare. The swingarm is definitely not as strong as the Lobo, but just a cool piece to keep on the bike (atleast in my view). Anyway pictures of it as it currently is...

So here is all that stuff at the moment. It will probably be a little while until I make some progress and have more pics of it up, mainly due to not having enough hours in the day this time of year as well as money. The rest of the parts are mostly sitting all boxed up and stored away in my basement and are ready to go. Just need to figure out a skid plate for the frame since the AC one I have and was planning on running doesn't fit well due to the rake of the frame being different than the skid and the pro peg bars as well. I may try to go with a Laeger style skid plate and just end it before the frame bends under the a arms so that at least the motor and bottom most of the frame is protected (which is my main concern). After I find a plate that fits nicely I'll get some mounts or something made, strip the frame, and take out to get coated.

To be continued...

mx250r91 · « **Reply #7 on:** July 07, 2013, 11:14:57 PM »

Looks good! I hope you have better luck with your PRP frame than me, I've broken everything on that frame... it's ready for the scrap metal dumpster. Yours does look built better, I think I got one of the first versions when I bought it from K&K back in 2000.

Where is HRE located? I was thinking about going with them for a custom swingarm idea I have...

tretimit16 · « **Reply #8 on:** July 08, 2013, 12:19:34 AM »

This is sweet. I was just thinkin on the way home today that it'd be cool to see some build threads start poppin up on this site and babam! Ur prp build is on here. Cant wait to watch its progress!

Deuce · « **Reply #9 on:** July 08, 2013, 12:51:37 AM »

Quote from: mx250r91;1699

Looks good! I hope you have better luck with your PRP frame than me, I've broken everything on that frame... it's ready for the scrap metal dumpster. Yours does look built better, I think I got one of the first versions when I bought it from K&K back in 2000.

Where is HRE located? I was thinking about going with them for a custom swingarm idea I have...

This frame is definitely solid... freakin' heavy actually for an aftermarket frame and I think they used some heavy gauge tubing through it.

HRE is near Harrisburg PA... Mikes website is HREAtv.com If you call and get the voice mail just leave the message or send him an email and give him some time to respond... He's a single man operation but does great work and is well worth it in my book.

blueball · « **Reply #10 on:** August 14, 2013, 07:40:27 PM »

do u have prp a arms for this build,if u do ,i would like to see some pics,thanks

Deuce · « **Reply #11 on:** August 14, 2013, 07:50:21 PM »

I don't have the prp arms, but I do have pics of them when they were originally on the bike.

I'm actually going to be running a gibson / axis front end

red88r · « **Reply #12 on:** August 14, 2013, 09:13:07 PM »

Nice start man. I need to get a aftermarket chassis. Did this quad come from WI? I remember one just like close to my house from a guy on exriders.

Deuce · « **Reply #13 on:** August 14, 2013, 09:18:52 PM »

Quote from: red88r;8510

Nice start man. I need to get a aftermarket chassis. Did this quad come from WI? I remember one just like close to my house from a guy on exriders.

I believe it made its way out here to the east coast from Wisconsin or somewhere around there. And ex riders is where I found the original pics of it.

jamieg45 · « **Reply #14 on:** August 17, 2013, 09:23:14 AM »

Come on man I need more pics, you know us guys like to have pics and read to. You know visual is so much better than anything well almost, up close and personal and touching it is better. Keep up the good work man, and you have to many project builds pro. I see why you have no time and maybe room either.