Main Vertical Rail
1"x6" Aluminum
Viewed: 633 times.
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Horizontal and Vertical Rails
Back view of the horizontal rail showing the lap joint.
Viewed: 569 times.
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Main Rails Assembled
The 1/2" countersunk cap screws lock the joint.
The bottom bracket post hole is centered on the back edge of the veritical rail to make measuring chain stay length easier.
Viewed: 512 times.
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Bottom Bracket Post and Collet Pieces
The tubing fitting on the right of the post is for argon purge
Viewed: 527 times.
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Closeup of the Bottom Bracket Collet
When the bolt is tightened the tapered washers expand the collet and center the bottom bracket.
The washer is used to center 68mm BBs and is removed for 73mm BBs.
Viewed: 483 times.
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Bottom Bracket Collet - View 2
Viewed: 449 times.
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Bottom Bracket Collet Assembled
Viewed: 556 times.
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BB Post and Seat Tube Rail
Viewed: 497 times.
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BB Post and ST Rail Installed
The seat tube rail pivors on the bottom bracket.
Viewed: 582 times.
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