Rene Herse Tandem Double Crank


Rene Herse tandem cranks are made to the same ultra-high specifications as our single-bike cranks. 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 with standard rings are compatible with 5- to 9-speed systems. For 9/10/11-speed drivetrains, choose our ramped-and-pinned 11-speed chainrings.

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

Outer Chainring (teeth)
(5–9 speed compatible)
52  50  48  46  44  42

(9/10/11 speed compatible)
48/33  46/30  44/28  42/26

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

Tandem Left-Side (teeth)

Crank length: Arm pair with chainrings on both sides is ‘drive arms’; the other set (right crank without chainring) is ‘connecting arms.’

  • Bottom bracket (drive arms): 113 mm, JIS taper
  • Bottom bracket (connecting arms): length see frame specs, JIS taper
  • Low tread/ Q factor: 142 mm (double, drive arms)
  • Length: 165, 171, 177 mm
  • Weight: 540 g (double 171 mm), varies with chainring sizes
  • Forged 2014 arms for high strength
  • CNC-machined 7075 chainrings for long wear
  • Meets EN 'Racing Bike' standard for fatigue resistance
  • Assembled in Seattle from parts made in Taiwan and USA
  • 10 year warranty
  • Click here for instructions for René Herse Cranks, SKF Bottom Brackets, and our chart for using the two together.