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Rene Herse Outer Chainring


We back up our René Herse cranks with excellent service. If your rings have worn out after many years of hard riding, or if you want to change your bike’s gearing, select from the options below. You can also use the 11-speed chainring to convert your existing René Herse cranks (use with the suggested inner ring for optimal shifting).

5- to 10-speed compatible
52, 50, 48, 46, 44, or 42

11-speed compatible
48 (use with 33-tooth inner ring)
46 (use with 30-tooth inner ring)
44 (use with 28-tooth inner ring)
42 (use with 26-tooth inner ring)

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René Herse cranks remain unsurpassed in their efficiency. The small 70 mm bolt circle allows you to use any chainring combination from 24 teeth upward. The minimalist design with three arms makes this one of the lightest cranks ever made, yet the chainrings are well-supported, and standard chainring bolts are used. Choose between single, double and triple cranks.

We’ve updated René Herse’s classic design by curving the arms slightly. This provides additional heel clearance and allows use of a shorter bottom bracket spindle. We forge the arms out of the strongest aluminum, and we machine the chainrings out of ultra-hard 7000-series aluminum for optimum wear resistance. We custom-make our bolts. Producing such a minimalist design requires very tight tolerances and superior quality. That is why we have a dedicated engineer supervising the production at our suppliers.

Thanks to our net-shape forging process (which has a dedicated forging die for each crank length), René Herse cranks are the only classic cranks that pass the most stringent EN “Racing Bike” standard for fatigue resistance. They have proven themselves over tens of thousands of miles of hard riding.


  • Fits modern and many classic René Herse cranks
  • 7075 aluminum for optimum wear resistance
  • Anodized for corrosion resistance
  • 3D CNC machined