Worksman INB frame differences?

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david m

New Member
Mar 24, 2012
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California
As I'm looking around at various builds (motorized and not) I'm noticing some Worksman INB frames that look like the top bars are parallel but I know the current versions are not parallel.

Am I seeing things, have these been modified, or are there different INB frame designs from different time periods?



 
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sportscarpat

Bonneville Bomber the Salt Flat record breaker
Jun 25, 2009
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california
If the top bars are parallel it is not an INB frame. They make a couple different model frames. Check their web site. There are earlier and later model INB frames, too. The earlier frames have a different shape to the down tube and have a different open area shape between the middle and top tubes. In your pictures the top picture is the earlier INB frame. The lower picture is the later INB frame which is also the current production design.
 
D

david m

New Member
Mar 24, 2012
5
0
0
California
sportscarpat said:
If the top bars are parallel it is not an INB frame. They make a couple different model frames. Check their web site. There are earlier and later model INB frames, too. The earlier frames have a different shape to the down tube and have a different open area shape between the middle and top tubes. In your pictures the top picture is the earlier INB frame. The lower picture is the later INB frame which is also the current production design.
Click to expand...
Thanks for the info Pat. As far as building for a small powered BTR, is there any difference between the two frames? Seems like the parallel bars make for a nicer looking tank. Are there any fames out there that combine the curved front down tube of a Schwinn Panther with straight, parallel top bars? I'm guessing not.
 
brett7777

brett7777

New Member
Aug 19, 2011
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Auckland, New Zealand
sportscarpat said:
If the top bars are parallel it is not an INB frame. They make a couple different model frames. Check their web site. There are earlier and later model INB frames, too. The earlier frames have a different shape to the down tube and have a different open area shape between the middle and top tubes. In your pictures the top picture is the earlier INB frame. The lower picture is the later INB frame which is also the current production design.
Click to expand...
I wonder which one my frame is, it has a pretty big gap between the top frame rail & the top of the tank
 
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