Rene Herse Triple Crank


Rene Herse cranks are a modern classic. They are one of the lightest triple cranks, while offering the greatest choice of chainrings: from 52 to 24 teeth. Rene Herse cranks are designed for 5- to 9-speed systems, but they also can be used with modern 10-speed drivetrains if a Shimano Ultegra chain is used. Note that unlike our double cranks, the triple cranks are not compatible with STI and Ergopower triple derailleurs. (See this blog post for details.)

Rene Herse crank bolts and pedal washers are included. The large choice of chainrings allows you to fine-tune your gearing to your riding style:

Outer Chainring (teeth)
52 50 48 46 44 42

Middle/Inner Rings (teeth)
44 42 38 36 34 33 32 30 28 26 24

Assembled in Seattle from Taiwan-made parts. 10 year warranty.

We recommend SKF bottom brackets 121 mm JIS spindle for Rene Herse triple cranks.



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. A triple crank can be converted to double by removing one inner/middle ring and using double chainring bolts. A single crank cannot be converted to double or triple.

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.

  • Bottom bracket: 118-121 mm, JIS taper
  • Length: 165, 171, 177 mm
  • Weight: 595 g (triple 171 mm), varies with chainring sizes
  • Low tread / Q factor: 153 mm (triple)
  • Forged 2014 arms for high strength
  • CNC-machined 7075 chainrings for long wear
  • Meets EN "Racing Bike" standard for fatigue resistance
  • Compatible with most drivetrains (up to 10-speed)
  • Important: not compatible with Shimano STI or Campagnolo Ergopower shifters.
  • Compatible with downtube or bar-end shifters. (If you want to use STI or Ergopower, use René Herse double cranks.)
  • Important: use "double" front derailleur with a smooth cage. Triple front derailleurs have stepped cages that work only with specific chainring combinations.
  • Click here for downloadable instructions for René Herse Cranks, SKF Bottom Brackets, and our chart for using the two together.

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