2016 EXCELSIOR Board Tracker Flat Head Build

That bike is looking sweet! You're using 50mm Felt wheels...I'm considering some for my bike, but I'm also considering a Monark Type 2 fork (which only accomodates up to a 2.55" tire). What size tires and which fork is that that accomodates them?
 
Kustomized Hypnosis said:
That bike is looking sweet! You're using 50mm Felt wheels...I'm considering some for my bike, but I'm also considering a Monark Type 2 fork (which only accomodates up to a 2.55" tire). What size tires and which fork is that that accomodates them?
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This is the fork I used but did modify it: http://www.pistonbikes.com/Monark-Springer-Mega-Fork-p/msfmeg.htm

Tire size: 26 x 2.125 With the wide rim the tire fills up real nice. I am sure you will be able to use 2.55 with the fork. Will that tire fit the rear clearance wise? With-out chain issues.
 
That's interesting, I didn't know a 26 x 2.125 tire would fit well on a 50mm rim. They look like bigger tires, and definitely look good on there. Thinking about chain rub and having to offset the engine for wider tires, I'm going to stick with 26 x 2.125. I have steel wheels with 12g spokes, and measuring them, it's only a 1/2" difference between them and the 50mm Felts. All things considered, I'm going to use the steel wheels.
 
Kustomized Hypnosis said:
That's interesting, I didn't know a 26 x 2.125 tire would fit well on a 50mm rim. They look like bigger tires, and definitely look good on there. Thinking about chain rub and having to offset the engine for wider tires, I'm going to stick with 26 x 2.125. I have steel wheels with 12g spokes, and measuring them, it's only a 1/2" difference between them and the 50mm Felts. All things considered, I'm going to use the steel wheels.
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This is a 2.3 on a 100mm rim, it all fits...
 

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A couple new pictures of some polished parts installed on the Briggs. Waiting on an exhaust valve for final assembly, then come the bench test fire up...
 

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Dang Jeff! I had to put some sunglasses on to view those pics! So shiny.

I don't know, that engine is looking a little too nice to install in a bike, it will get dirty.

Maybe it needs to be displayed in the living room or over the fireplace or something, mechanical art.

I look forward to reports of how it runs, it definitely looks like a solid power plant. Great achievement for a "final build"

Gilbert
 
Looks the part cause it is! Fine work & it will suit that beautiful frame well. Did I miss a post with a horsepower estimate? Rick C.
 
Thanks for the kind words guys. Gilbert I have to go out with a bang so this is it, and by the way I have bikes in the house already and that motor would look good in the living room for sure. A couple pictures and one of where I am heading...FTW
 

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indian22 said:
Looks the part cause it is! Fine work & it will suit that beautiful frame well. Did I miss a post with a horsepower estimate? Rick C.
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Rick

The big questions about horsepower, everyone likes to add to the number to impress the crowd, I figure about 8 maybe 10 if I add the nitro additive to the gas, I am fine with that since I will not be racing this bike. Just want a good sounding solid bike that I can cruz
 
Had a little time to work on the bike today, rear brake setup...has to be right on since this is my only brake on this bike. Cable actuated hydro setup...makes life easy I hope. Takes a lot to set this up right that's for sure... And a little more bling on the oil spout...
 

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Such a nice day in California today...85F... did a little work on the BTR...the rear brake bracket was completed, sanded and polished, added some detail to it. Hand polished with my special no buffer wheel-no mess-no bull**** pro 40... Waiting on my special order from Sportsman Flyer....this build would no be complete with-out...that's for sure!!!!
 

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culvercityclassic said:
Such a nice day in California today...85F... did a little work on the BTR...the rear brake bracket was completed, sanded and polished, added some detail to it. Hand polished with my special no buffer wheel-no mess-no bull**** pro 40... Waiting on my special order from Sportsman Flyer....this build would no be complete with-out...that's for sure!!!!
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The brake bracket looks great. Can say a little more on your no bull hand polish method?
 
Got the brake all figured out, just waiting for my sprocket and reduction drive so wheel spacers can be made. I will also need to make some spacers for the caliper to the bracket. The slot on the bracket is to keep the brake from moving, it also allows me to move the wheel for chain adjustment.
 

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That flat-head face...who could not love it...makes me want to never touch another over head valve motor again....Flat-Head-Fever
 

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I've been staring at the flat head photo last posted. So simple & elegant that the Old guy was mentally transported to the late fifties & a simpler time. The sights and sounds of '49 & '50's Fords and Mercs "dragging Main street on saturday nights glass packs, Smitty's and "lake pipes" singing a most pleasant melody.
I was at the time modifying a badly worn & 'wanked out Cushman 8 hp scooter, flat head of course. Thirteen years young and into the need for speed. Bartel's machine shop align bored the jug .030 over size, decked it, smoothed and matched the ports milled the head to boost compression (I'd already spent many hours polishing to a mirror finish by hand), balanced the rotating assembly, shaved the flywheel & cooked it in the acid bath...all for $30.!! I installed (under the watchful eye of a fine mechanic) the "full race" Isky regrind cam shaft. The cam core was returned to Isky for a $5. rebate) and springs, Jahns piston and Grant rings installed; all these Cushman speed parts were purchased through the southern California speed shop Honest Charley's and selected from one of their mail order catalogs... along with a Dellorto round slide carb scavanged from a small foreign bike found in a salvage yard? Of course the baffle was pulled and the sound was similar to the burble pop of a one tube Harley flat head. Ran great & only the big 4 speed Mustang scooters could deal with it in a race. All these good memories were brought back to life through sharing your excellent flat head build with old guys like me and encouraging everyone of all ages to dream and build. Rick C.
 
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