Natural Sandstone
Rohloff GT2-8 28-tooth bolt-on
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Product Description
This part, printed in stainless steel, bolts onto a modified version of the stock Rohloff 16-tooth sprocket
The modification involves welding four short threaded rods (actually, bolts with the head cut off) onto the sprocket -- one in every fourth hole (see the images on the linked page). Also, the sprocket teeth needed to be filed down considerably.
This is for a retrofit of belt drive to my custom recumbent bike. I had a modified Strida 30-tooth pulley, but it had a rather complicated mount to the bolts. This is simpler, and gives me slightly higher gear inches.
The Rohloff sprockets mount to the Rohloff hub with a Rohloff-custom 6-start thread (like a double helix -- a sextuple helix, I guess). I've tried printing such threads, but the dimensional accuracy of the stainless steel process is not up to the task.
The modification involves welding four short threaded rods (actually, bolts with the head cut off) onto the sprocket -- one in every fourth hole (see the images on the linked page). Also, the sprocket teeth needed to be filed down considerably.
This is for a retrofit of belt drive to my custom recumbent bike. I had a modified Strida 30-tooth pulley, but it had a rather complicated mount to the bolts. This is simpler, and gives me slightly higher gear inches.
The Rohloff sprockets mount to the Rohloff hub with a Rohloff-custom 6-start thread (like a double helix -- a sextuple helix, I guess). I've tried printing such threads, but the dimensional accuracy of the stainless steel process is not up to the task.
Details
What's in the box:
Rohloff GT2-8 28-tooth bolt-on
Dimensions:
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Rating:
Mature audiences only.
