200 pound 250 2 stroke

Chadillac661
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Chadillac661
Edited Date/Time 5/28/2013 10:43am


I just wanted to share this amazing project with all of the two stroke fans out there. We just finished this factory level 2 stroke build after a year and a half of R&D, testing, changes, etc. The end result is amazing and we ended up with a 53hp rocketship that weighs 15 lbs less than the AMA minimum weight limit for that class! 201 lbs, ready to ride with an empty tank. We used a Varner Motorsports modified KTM 250 sx powerplant in a 2011 Honda 450 frame with production based Showa suspension including a SFF Showa fork, modified, valved and set up by MB1 Suspension. The entire engine cradle and billet engine mounts are hand fabricated and machined to accommodate the KTM powerplant. Racetech Titanium was instrumental in helping bring the weight down with all of their titanium fasteners, axles, brake piston and pivot hardware. The bike also utilizes many one-off titanium or alloy parts and heavily modified OEM parts as well. DLC coatings were utilized in many critical areas including the shock shaft, brake hardware and pins, brake pistons, select transmission parts, titanium linkage pivot bushings, and swingarm pivot bolt to name a few. It took over 500 hours of trial and error, testing, changes, extensive mods and many hours of scratching our heads to get it perfect but I feel this is the most refined 2 stroke conversion build anyone has ever done.
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Nystrom
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Nystrom 10/25/2012 12:51am
10/25/2012 12:51am
One word, sick! you have to post more pics and some videos!
keeptwostrokesalive 10/25/2012 10:10am
10/25/2012 10:10am
That is amazing. If you dont mind me asking, how much did it cost when it was finally complete and how does that bad boy handle?

The Shop

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xnationalwrench 10/25/2012 10:11am
10/25/2012 10:11am
Back in the day Warren Reid raced a "Privateer"Honda between his factory rides at the Superbowl that was carbon fibered (the bike was owned by the guy that owned the knee brace company).
Chadillac661
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Chadillac661 10/25/2012 10:22am
10/25/2012 10:22am
It handles like a really light 125 but with alot more horsepower! These gen 5 chassis turn really quick so it suites a 2 stroke perfectly.
MOTO120
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MOTO120 10/25/2012 10:23am
10/25/2012 10:23am Edited Date/Time 10/25/2012 10:24am
Is that a Hammerhead Ti brake tip on a stock brake lever? Also, Ti rear shock spring....RCS? Last thing, what did you guys do to the hubs.....stock?

BTW - awesome build!!
Chadillac661
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Chadillac661 10/25/2012 10:25am
10/25/2012 10:25am
xnationalwrench wrote:
Back in the day Warren Reid raced a "Privateer"Honda between his factory rides at the Superbowl that was carbon fibered (the bike was owned by the...
Back in the day Warren Reid raced a "Privateer"Honda between his factory rides at the Superbowl that was carbon fibered (the bike was owned by the guy that owned the knee brace company).
I think that guy you are referring to also owns Castillo Ranch if I'm not mistaken?
Chadillac661
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Chadillac661 10/25/2012 10:37am
10/25/2012 10:37am
MOTO120 wrote:
Is that a Hammerhead Ti brake tip on a stock brake lever? Also, Ti rear shock spring....RCS? Last thing, what did you guys do to the...
Is that a Hammerhead Ti brake tip on a stock brake lever? Also, Ti rear shock spring....RCS? Last thing, what did you guys do to the hubs.....stock?

BTW - awesome build!!
Its a modified Hammerhead tip from a KTM actually. RCS spring, and the hubs are machined and lightened stock hubs. TCR wheel lacing did the hardcoat anno on them.
Chadillac661
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Chadillac661 10/25/2012 10:43am
10/25/2012 10:43am
keeptwostrokesalive wrote:
That is amazing. If you dont mind me asking, how much did it cost when it was finally complete and how does that bad boy handle?
I'm not sure on the final cost, we had a lot of sponsors help us with product and fabrication/machine work as well. I probably have 400 hrs of labor in this thing.
newmann
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newmann 10/25/2012 1:22pm
10/25/2012 1:22pm
Very nice. Appreciate the work that went into that beauty. Especially the airbox! Gotta ask.....why did you add that additional reservoir to a lightbike project? I would have been tempted to take the minimalistic approach with all that ti.
Chadillac661
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Chadillac661 10/25/2012 3:14pm
10/25/2012 3:14pm
newmann wrote:
Very nice. Appreciate the work that went into that beauty. Especially the airbox! Gotta ask.....why did you add that additional reservoir to a lightbike project? I...
Very nice. Appreciate the work that went into that beauty. Especially the airbox! Gotta ask.....why did you add that additional reservoir to a lightbike project? I would have been tempted to take the minimalistic approach with all that ti.
That airboot is a work of art. The sheetmetal shop that made that took 19.5 hrs to complete it, those guys can do things with aluminum I never thought was possible. The additional res is overkill, we are going to eliminate it in the future.
Chadillac661
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Chadillac661 10/25/2012 6:49pm
10/25/2012 6:49pm
keeptwostrokesalive wrote:
Last question. Where is a video of someone riding it?
Last question. Where is a video of someone riding it?
No video yet but I have a few pics of me riding it. They are not the best to say the least so I didn't want to post them on the forum but if you send me your direct email I will shoot them over to you. Lets just say we are far better at projects than action photos....
Chadillac661
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Chadillac661 10/26/2012 10:35am
10/26/2012 10:35am
IceMan446 wrote:
Who makes that silencer?
Its actually a custom hybrid utilizing parts of a PC silencer and the internal dimensions with a carbon body.

Pit Row

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LoudLove
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LoudLove 10/27/2012 1:31pm
10/27/2012 1:31pm
Outstanding work. Minimizing weight (especially unsprung) is a costly pursuit, as your post claims. Couple of questions
1) what is the wear rate of the titanium bit versus their aluminum and steel counterparts?
2) how much would a 125 version weigh?
Chadillac661
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Chadillac661 10/27/2012 1:43pm
10/27/2012 1:43pm
LoudLove wrote:
Outstanding work. Minimizing weight (especially unsprung) is a costly pursuit, as your post claims. Couple of questions 1) what is the wear rate of the titanium...
Outstanding work. Minimizing weight (especially unsprung) is a costly pursuit, as your post claims. Couple of questions
1) what is the wear rate of the titanium bit versus their aluminum and steel counterparts?
2) how much would a 125 version weigh?
Which titanium part are you referring to? I would estimate about 15 lbs less for the 125 version.
TrailDigger 10/28/2012 6:34pm
10/28/2012 6:34pm
I believe hes talking about all the titanium parts. How much did that cost to build? What would you let it off your hands for?
Chadillac661
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Chadillac661 10/28/2012 6:43pm
10/28/2012 6:43pm
TrailDigger wrote:
I believe hes talking about all the titanium parts. How much did that cost to build? What would you let it off your hands for?
I had a lot of help with all of the special parts and machine work because many people I met along the way were behind the project. If you had to pay retail for all that labor etc I have no idea what that would total? 25k maybe? 1 off parts are very expensive.
TrailDigger 10/28/2012 6:49pm
10/28/2012 6:49pm
25 grand is a lot of money lol. Especially for a 15 year old. Itd take me like 15 summers to get that together. What do all the titanium parts cost? How much would that silencer cost?
Chadillac661
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Chadillac661 10/28/2012 7:06pm
10/28/2012 7:06pm
TrailDigger wrote:
25 grand is a lot of money lol. Especially for a 15 year old. Itd take me like 15 summers to get that together. What do...
25 grand is a lot of money lol. Especially for a 15 year old. Itd take me like 15 summers to get that together. What do all the titanium parts cost? How much would that silencer cost?
No idea, we took parts from 3 different silencers. $300 maybe?
TrailDigger 10/28/2012 7:19pm
10/28/2012 7:19pm
How does it differ performance wise from other silencers? And the question that decides if someone buys it or not; does it sound cool? Also how heavy is it?
Chadillac661
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Chadillac661 10/28/2012 7:29pm
10/28/2012 7:29pm
TrailDigger wrote:
How does it differ performance wise from other silencers? And the question that decides if someone buys it or not; does it sound cool? Also how...
How does it differ performance wise from other silencers? And the question that decides if someone buys it or not; does it sound cool? Also how heavy is it?
Very similar to other silencers
IceMan446
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IceMan446 10/29/2012 7:57am
10/29/2012 7:57am
IceMan446 wrote:
Who makes that silencer?
Chadillac661 wrote:
Its actually a custom hybrid utilizing parts of a PC silencer and the internal dimensions with a carbon body.
I knew the end was from a PC silencer and thought man where do they sell that at!

Very trick looking. I like it man.
Travis_Hudson
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Travis_Hudson 5/25/2013 12:13am
5/25/2013 12:13am
TrailDigger wrote:
How does it differ performance wise from other silencers? And the question that decides if someone buys it or not; does it sound cool? Also how...
How does it differ performance wise from other silencers? And the question that decides if someone buys it or not; does it sound cool? Also how heavy is it?
Chadillac661 wrote:
Very similar to other silencers
Any more info on this scoot? Video of it riding?

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