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Bike tube fattener, 31.8mm=1.25&quot; to 38.1mm=1.5&quot; 3d printed

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Black Strong & Flexible
Bike tube fattener, 31.8mm=1.25" to 38.1mm=1.5" 3d printed
Bike tube fattener, 31.8mm=1.25" to 38.1mm=1.5" 3d printed

DIGITAL PREVIEW
Not a Photo

Bike tube fattener, 31.8mm=1.25" to 38.1mm=1.5"

$4.81
3D printed in black nylon plastic with a matte finish and slight grainy feel.
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Product Description
4x of these allow someone to install 2x of the 38.1mm = 1.5" size version of the Problem Solvers Backstop (that is: 2x of QBP part# BR5457) onto the top-tube of a Surly World Troller bicycle frame.

Two key reasons for this:

1:
A travel bike's frame must come apart into pieces.  This requires that the control wires -- 1x for the rear canti-brake and 1x for the rear derailleur -- have in-line cable-separators (www.sandsmachine.com/ac_cable.htm).  These cable-separators (aka "cable-couplers") require a length of exposed cable, and that requires two pairs of "housing stops".  These are typically pre-welded onto the bicycle frame, but in the case of the Surly World Troller frame in particular, they're not there, so they must be added.

2:
To keep the cable-separators from dragging across the top-tube's underside paint finish and rubbing it off, a wider-than-normal "air-gap" is required between the exposed cable and the top tube itself.

4x of these plastic pieces, plus the 2x Problem Solvers Backstops (QBP part# BR5457), provide exactly this.
Details
What's in the box:
1.5in To 1.25in Re-sizer Piece V2
Dimensions:
1.81 x 1.62 x 3.98 cm
Switch to inches
0.71 x 0.64 x 1.57 inches
Switch to cm
Success Rate:
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Rating:
Mature audiences only.
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