Double Vision: Dual Engine Triumph Race Bike Update

I have been working on this bike non-stop the last six weeks, and it has caused me to empathize with people who have chosen the life of the recluse, leaving behind friends and family for a sole pursuit. I am not there myself, but I am looking through the keyhole and I feel as though I have come to some sort of understanding about that sort of thing though I rather wouldn't. But I digress; it has been a couple months since I updated photos of the build, which has since changed names from Milwaukee Murderer to Double Vision.

Special sprockets. This here is what joins the power of the motors by linking the crankshafts.

Oil tank in progress. Made a wood buck out of MDF and hammered annealed 5003 aluminum to make the face and dished back. Thanks to Jay Roche @ Special 79 for some tech posts on his blog which helped me out. This tank consumed at least 3 full days of my life, and I mean full days, but it is the nicest thing I have ever made.

Sometimes simple things are the best, I really like the way these fender mounts turned out.

This primary guard involved a really large MDF buck and plenty of time. I feel as though I welded miles of aluminum building this bike. Turned down a circle of MDF in my lathe, routed the edge over and hammered the dish over the clutch basket area. 1/2" strip welded to that to bring it out a bit more, and the face and sides all welded up while clamped to the wood buck to keep it in shape. Mounts to 9/16" stainless round bar that is welded to the stainless motor plates. Should be up to tech for Bonneville in August.

More aluminum, chain guard and number plates. This was a little while ago and was about the end of the major fab work. I subsequently tore the bike down to the bare frame and finish welded everything. More pics to come soon... ?

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Commented on 6-9-2013 At 03:49 pm

Awesome detail. Thanks

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Steve Pfalzgraf

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The So-Cal Cycle Swap is going down this Sunday at the Long Beach Veterans Stadium. Day of vending is available.
The Greasiest Motorcycle Show at the B-House Live. Indoor Custom Motorcycle show. 30+ custom motorcycles, bands, and vendors. Ten dollars at the door. Kids 12 and under Free. 21 and over only after 4 pm. For more info check out their website and give them a follow on Instagram and Facebook.

Have a great weekend!

Photo by Alec Ozawa.

Take a peek at Basket Case Issue Seven

Our friends at Basket Case give our readers a sneak peek at Issue 7 which is available now! Check it out here.

16 Tooth Transmission Sprocket

I'm runnin' this 16T on my K flat-tracker for a bit . . . down from the 18T

Gary Scott

Ironic photo, since it appears he riding a Triumph ! ?
Scott was an AMA Grand National Champion in 1974.  He raced Triumphs, then raced for Harley-Davidson factory team, then as a privateer.  Gary Scott was an excellent professional motorcycle racer, but sometimes he could be a real asshole.  I guess he slugged Bill Werner in the mouth once over something?  Maybe he deserved it?  Scott claimed a few motors, said a lot of words . . . but hey, gotta like the dude 'cause he goes like hell ! 

TECH: Piston Skirt Slot ( WL Pistons )

There's "Nice to Know" and there's "Need to Know"
I'm not sure which may apply to you ?
This angled slot is factory on all oversize WL (45") pistons. 
Standard bore (2.745 std. size) pistons do not have this slot. 
The slot is only on oversize pistons
This piston (pictured) is +.040 oversize.
The slot is only on one side of the piston - Not both sides. 
Slot position is towards the front of engine(opposite thrust face)
The thrust face of a piston is on backside of each cylinder.
Correct installation = slot towards front-side of cylinder.

May 15th, 1921

Harold broke Cannonball Baker's 24hr record . . . then ended up being killed while testing when a horse stepped out in front of him.  Many top racers die in testing accidents. 
Today is his birthday.

Bultaco !

Z O O M    I N  !
The bulls have a good power to weight ratio . . .

Dig Out !

Who writes this stuff . .  ?
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