Front Hub


Rear Hub


Rear Hub w/ XTR freehub body


Hub Set


Hub Set w/ XTR freehub body


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With over 24 years experience 616 Fabrication is proud to introduce our all mountain Hubset.  616 hubs are “race worthy” in all competitive mountain bike and cyclecross applications, and come in a rainbow of colors featured above. All 616 prducts are proudly manufactured in Grand Rapids, MI, USA. Our hub shells are made from 6061-T6 Aluminum, front axle 7075, rear 4130 chromoly, and utilize a Shimano™ freehub body modified with a 616 invented bearing retainer to accept a cartridge bearing rather than loose ball and cones. We are also proud to announce that we’ve teamed up with Morningstar and are using its FH Soup, specially formulated for -50 to 140 degrees, which is injected in not only the freehub body but also the bearings.

  • Hub shells made from 6061-T6 Aluminum
  • Lazer etched logo (no sticker!)
  • We utilize a shimano free hub body
  • Currently available in rainbow of colors shown above
  • All free hub bodies are injected with morningstar soup. A grease rated from -50 to 140+ degrees.
  • Made in Grand Rapids, MI, USA
  • 5 year limited warranty!


Flange Dia.

Center to Flange





Front 100mm Drive - 39mm
Brake - 43mm
Drive - 34mm
Brake - 23mm
Center Lock N/A 99R6 131g
Rear 135mm Drive - 43mm
Non Drive - 43mm
Drive - 18mm
Non Drive - 36mm
Center Lock Shimano™ Ultegra 99R6 339g
Warranty: We, at Six 1 Six are proud of our work, and we stand behind it. That should be enough, but our lawyers insisted we add this: SIx 1 Six warrants to the original consumer purchaser of any product it manufactures that the product will be free from defects in material or workmanship. This limited one year warranty does not cover drive bodies and bearings or damage resulting from accident, misuse, abuse, improper installation or maintenance, user alteration or simply a worn out product. If you feel your product is defective, call for our R.A.# and return the product for inspection, postage prepaid, along with proof of date of purchase to Six 1 Six for diagnosis and repair or replacement at our option.
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