Rene Herse Double Crank


Where beauty meets performance. Rene Herse cranks are a modern classic. Thanks to their smart design and net-shape forging, they are among the lightest cranks available today, while offering a great choice of chainrings: from 52 to 24 teeth. Whether you want a classic racing double or ultra-compact cranks to match your pedaling style, Rene Herse cranks are available with the chainring combination you need.

Rene Herse cranks are designed for 5- to 9-speed systems. They are compatible with 10-speed systems when using a Shimano Ultegra chain, but we recommend our 9- to 12-speed cranks for optimum shifting performance with modern drivetrains.

Rene Herse crank bolts and pedal washers are included. Choose your chainring combination:

Outer Chainring (teeth)
52 50 48 46 44 42

Inner Ring (teeth)
44 42 38 36 34 33 32 30 28 26 24

Assembled in Seattle. 10 year warranty.

We recommend SKF bottom brackets 110 mm JIS spindle for Rene Herse double cranks.


Rene 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 double crank can be changed to triple by using triple chainring bolts and adding an inner/middle ring. A single crank cannot be converted to double or triple.

We’ve updated Rene 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), Rene 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: 110-113 mm, JIS taper
  • Length: 165, 171, 177 mm
  • Weight:
    • (165 mm): 498 g (double 42/26); 522 g (double 46/30).
    • (171 mm): + 6 g.
    • (177 mm): + 38 g (177 mm arms are thicker for added strength).
  • Low tread / Q factor: 142 mm (double)
  • Compatible with most drivetrains (up to 10-speed)
  • Forged 2014 arms for high strength
  • CNC-machined 7075 chainrings for long wear
  • Meets EN 'Racing Bike' standard for fatigue resistance
  • Click here for downloadable instructions for Rene Herse Cranks, SKF Bottom Brackets, and our chart for using the two together.

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