29" or 27.5" Wheels
Full suspension singlespeed
Belt drive compatible


The Lenz Sport MilkMoney bicycle is one of the only full suspension single speed mountain bikes in the world that doesn’t require some sort of chain tensioning system to maintain proper chain slack during suspension movement. Using our Concentrak suspension system, the chainstay length stays constant so we are able to use sliding dropouts to adjust the chain slack, but still allow the wheel to drop down for easy removal. This Lenz bike takes the single speed mountain bike into the all mountain/cross country category. The Milkmoney shreds on long cross country rides, and will feel at home on technical day rides as well. The Milkmone is a very versatile bike. It can be set up as a single speed or with a Rohloff Hub, and it’s also compatible with the Gates Carbon Belt Drive system.  We also make additional dropouts that accept standard derailleurs. Click here to read more about Rohloff hubs and belt drives.


  • 29 inch or 27.5 inch wheels
  • Singlespeed full suspension mountain bike
  • 80mm, 100mm, or 120mm fork travel options
  • 3 or 4 inch travel options
  • Rohloff hub and Belt drive compatible – click here
  • 30.9mm seatpost diameter
  • 135mm rear dropout spacing

 29er geometry 650b/27.5″ geometry
TT 22.625 23.25 23.875 24.5 25.25 22.625 23.25 23.875 24.5
ST 15eff 17eff 19eff 21eff 23eff 15eff  17eff 19eff 21eff
BB 13.75 14.0 14.0 14.0 14.0 13.75 14.0 14.0 14.0
HT 4.0 4.0 4.5 5.0 5.5 4.0 4.5 5.0 5.5
CS 17.25 17.25 17.25 17.25 17.25 17 17 17 17
SA 72.2eff 72.2eff 72.2eff 72.2eff 72.2eff 72.2eff 72.2eff 72.2eff 72.2eff
HA 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5
WB 42.9 43.375 44 44.8 45.6 42 42.875 44.75 45.5
SO 29 29.625 30.0 30.6 31.4 29 29.625 30.0 30.6

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