Author Topic: Board track racer  (Read 5235 times)

Offline OKTomT

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Board track racer
« on: November 27, 2017, 09:03:44 PM »
I am going to build a vintage board track racer with the v twin engine that I built on a thread here about two years ago. Here is a picture to jog your memory.

Offline tom osselton

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Re: Board track racer
« Reply #1 on: November 28, 2017, 08:36:49 AM »
Should be good!

Offline OKTomT

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Re: Board track racer
« Reply #2 on: November 28, 2017, 09:14:59 PM »
To build this bike without plans I need to start with the engine and a set of wheels. I have the engine so  what to do about the wheel. I could buy some but I can't find some I like.  I built some for the last bike but they had no drop center and it was tough installing the tires so I have decided to try to make some dies and try to form a drop center in a piece of 2-1/2-1/8 Chanel and then roll it to the radius I need. After making three sets of dies I Finally made some that I think will work. Here are some pictures of the process

Offline PK

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Re: Board track racer
« Reply #3 on: November 28, 2017, 09:59:12 PM »
Interesting stuff! I've never seen pics of this process before..

PK

Offline RotarySMP

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Re: Board track racer
« Reply #4 on: November 30, 2017, 07:57:02 AM »
Wow. Rolling your own rims. That is real DYI! Awesome.
Mark

Offline OKTomT

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Re: Board track racer
« Reply #5 on: November 30, 2017, 09:10:19 PM »
Mark I like to make all the parts that I can. Its not practical and definitely pushes my limits .
Here are some pictures of the spokes,hub, rim,and die I used to forge the head on the spokes.
I am still having a little trouble with the photo size thing some moderators please delete the over size ones thanks.

Offline one_rod

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Re: Board track racer
« Reply #6 on: December 01, 2017, 12:17:21 PM »
Well, this thread has certainly got my attention. Really looking forward to seeing the updates.
"A season ticket for the one way ride..."

Offline RotarySMP

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Re: Board track racer
« Reply #7 on: December 08, 2017, 01:01:16 PM »
Do you use a hydraulic press to forge the spoke heads onto the die?
Mark

Offline Joules

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Re: Board track racer
« Reply #8 on: December 08, 2017, 02:39:24 PM »
Aaaaaw Tom   :drool:
Just get doing and make swarf, you can decide what its going to be later.   :thumbup:

Offline NormanV

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Re: Board track racer
« Reply #9 on: December 08, 2017, 03:03:43 PM »
What is a board (bored) track racer?
« Last Edit: December 08, 2017, 07:25:34 PM by NormanV »

Offline Kjelle

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Re: Board track racer
« Reply #10 on: December 09, 2017, 04:08:15 AM »
Harder to explain than the concept is... Oval track, built from boards (wood, aka "brown stuff"). Follow the link; http://flashbackfab.com/excelsior-homepage/
This is one heck of a build!

Kjelle

Offline OKTomT

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Re: Board track racer
« Reply #11 on: December 09, 2017, 07:01:33 PM »
Mark the die is split so that when a spoke is in it and put in a vice it squeezes on the spoke and holds it firm then the end of the spoke is heated and forged in to the die see picture.
 
I have have been working on truing the wheels . I got the front one done and mounted the tire. they are Avon Speedmaster 3.00-21

Offline tom osselton

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Re: Board track racer
« Reply #12 on: December 10, 2017, 03:34:14 PM »
Interesting so are the spokes tapped into the hub or do you insert nipples through the hub?

Offline RotarySMP

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Re: Board track racer
« Reply #13 on: December 11, 2017, 08:38:46 AM »
Harder to explain than the concept is... Oval track, built from boards (wood, aka "brown stuff"). Follow the link; http://flashbackfab.com/excelsior-homepage/
This is one heck of a build!

Kjelle

Wow, that link cost me most of saturday evening and sunday morning. Superb.
Mark

Offline OKTomT

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Re: Board track racer
« Reply #14 on: December 11, 2017, 08:59:19 PM »
Osselton yes the hub is threaded.

The flashbackfab bikes are a very good example of a board track racer and thanks for posting the link but that is not what you are going to see in this post what I am building will have some similarities to a board track racer but is not a replica of a original. I enjoy building engines and the bike is basically a display stand for my engine all though it should be rideable it will be ridden very little
Here is a picture of the rear hub and sprocket blank

Offline OKTomT

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Re: Board track racer
« Reply #15 on: December 16, 2017, 12:30:52 PM »
I made a little more progress on the rear wheel and sprocket . I am going to make the front forks next.

Offline tom osselton

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Re: Board track racer
« Reply #16 on: December 16, 2017, 03:17:24 PM »
Its coming along good, whats that on the far side of the hub it looks like a spedometer fixture?


Offline OKTomT

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Re: Board track racer
« Reply #17 on: December 16, 2017, 05:07:28 PM »
Tom it's a grease cup to lube the wheel bearings. It's for looks but could be used if I took the inner seals out of the wheel bearings.

Offline OKTomT

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Re: Board track racer
« Reply #18 on: February 04, 2018, 10:35:53 PM »
I have made a little progress on my bike. The forks are done and the frame is about done. Here are some pictures.


Offline Meldonmech

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Re: Board track racer
« Reply #19 on: February 06, 2018, 05:02:09 AM »

Hi Tom
                               It,s looking good.

                                                         Cheers David

Offline OKTomT

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Re: Board track racer
« Reply #20 on: February 13, 2018, 08:30:43 PM »
I got the peddle holder mounted and the frame welded up and then mounted the engine in the frame. Here are the pictures.

Offline tom osselton

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Re: Board track racer
« Reply #21 on: February 13, 2018, 11:31:07 PM »
Coming along good! Are you sure you don't want to turn the front end into a girder front end?

Offline OKTomT

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Re: Board track racer
« Reply #22 on: February 14, 2018, 09:03:11 PM »
Osselton I like the way the ridgid front end looks but I may change it in the future. There is so many parts that still need to be made I don't want to remake the  already made ones yet.
I have been working on the handle bars and final drive here is a picture.

Offline sparky961

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Re: Board track racer
« Reply #23 on: February 14, 2018, 10:06:05 PM »
Very cool.  Quite the labour of love.

Offline crankshafter

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Re: Board track racer
« Reply #24 on: May 18, 2018, 05:40:51 PM »
Hi Tom.
Do you have updates on the board track racer?

CS