New BoardTrack Project w/Honda Engine

Thats a stroke of luck finding someone to bend just one piece, but in todays economy ya gotta take what you can get. I had called around in my area (Northeast Ohio) when I was ready to bend my 1" DOM tubing (one bend) and after a few sorrys and one $300 dollar set-up fee I quit looking. Yes that is correct on the price, I explained to them this not for the Space Shuttle.

Looks like your moving right along.

We fabricated the top 6" extension tube using 1" tubing and 7/8" tubing to allow us to rosette weld the extension. After grinding and sanding looks pretty descent.

Cut the drop and loop tube to length, fabricated a piece to similar to the top extension and rosette welded the drop tube to the neck and welded on the inside and outside of the loop tube where its exits the hub.

Looks like we are pretty close to hitting the layout we had using the template. We are a little higher off the ground at the bottom of the loop however.

Centerline of engine drive and flywheel looks like it will be pretty close to center of the hub, maybe raised a 1/2" so we will have room to for chain adjustment.

Mike

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Finshed the racing brace for the front fork. We changed from the 180 bend at the top fabricated previously to angling the tubing to meet at the top bracket. Think this looks closer to how they might braced the indian racer front forks.




Lines are starting to shape up. We placed the seat on the frame for reference. We plan to cover it with leather and fabricate metal straps to attach the seat to the rear seat tubes and top tube.


Seems small with the seat lowered like this, probably close to a 7/8 scale of an early 1920's model.


Mike

We fabricated the engine mounting bracket, added a few holes on the side to dress it up a bit.


Engine mounting and mounting bracket will be painted the same color as the frame.


Welded a component to the inside of the tube to support attaching the engine mounting bracket.


Will tack weld the bracket in place while we check how the engine lines up to the frame.


Engine looks like its sits low in the frame as we were hoping


Mike

that is looking good man. need more pics

Fabed up the tank out of cardboard. Went along the lines of the Excelsior as 'Board Track Racer'
had suggested.


Added the tank & seat to the bike and took a look from ground level.


Could use some help here. We are debating whether the tank is a bit heavy or fat looking.
Here is a rear shot.


Thanks,

Mike

the tank looks to be sized perfectly to me...I like long rides tho

__________________
Bill
EZ Motorbike Dealer - Fountain Hills, AZ
www.ezmotorbike.com
azgrampa@gmail.com

Are your cranks gonna still fit with the engines gear box right there???

Also... BAD A$$ BIKE BRO!!! (I've been following your build since day 1!)

__________________
For engine kits & bike service in Los Angeles, visit us at- www.VeniceMotorBikes.com

Thanks for the nod. We are looking at possibly cutting an inch out of the width at the widest part. I think the ends of the tank are about right, I may have gone a little overboard in the middle.

Mike

Adding the crank back will be the trickest part of the build. On the old BoardTrack racers, the crank shaft was used as a sprocket shaft as well.


So, we are going to attempt to fabricate a custom crank shaft that will also serve to locate the clutch. We purchased a semi-automatic clutch. We will drive the clutch from the engine sprocket by chain, the clutch will rotate on the crank shaft. The pedals will have to be extended out to about 10 inches crank to crank. We hope we will be able to use the pedals primarily for starting the engine and braking. We will probably end up supplementing the braking, just haven't got that far yet.

Thanks for the feedback.

Mike