We just received a new shipment of René Herse cranks. In addition to the double and triple cranks, this production run includes the single-speed cranks (shown above). We also have all chainring sizes in stock (except 50 teeth, which are due to arrive in Seattle in a few days).
The single-speed cranks are machined differently on the back (above): There is no shelf for the second chainring, and the chainring nuts are recessed into the spider. Not only does this look nice, but it allows you to run an ultra-narrow tread (Q factor).
We now also have the new René Herse tandem cranks in stock. The left-side chainrings always are 30 teeth. Since these rings don’t need to shift, we gave them a special tooth profile for extra-long wear. For the right-side crank, you have the same choice of single/double/triple chainrings in all sizes between 24 and 50 teeth.
We now offer the chainring bolts and spacers separately, so you can convert your cranks from double to triple or vice versa.
We appreciate your patience while we worked on the second production run. It takes time and dedicated work to maintain our high quality standards, and our engineer in Taiwan has been working overtime to make this happen. We think the end product is worth the wait. More information on the René Herse cranks is here.