More news from Seattle’s Rene Herse Cycles. Back in early November, I covered another modern throwback with the Rene Herses collab with OPEN Cycles. But, they’re at it again with the release of a new rear derailleur, that Jan Heine of Rene Herse Bicycles, says is the “ultimate rear derailleur“. If you’re looking for the perfect analog experience, this new rear derailleur may be for you.
The Nivex Rear Derailleur pulls inspiration from the 1930s Nivex (known by some to be the Godfather of the modern parallelogram rear derailleurs of today) but had to be designed from scratch, to handle the modern cassettes of today.
What’s the deal w/ the Nivex Rear Derailleur?
Using a desmodromic design, the new Nivex Rear Derailleur’s shift cable moves the derailleur in both directions for “lightning-fast, consistent shifts across the gear range”. The design eliminates the need for a return spring, which could mean lighter action. There is a compensator lever that is said to keep the chain tension constant and helps prevent chain slap.
According to Jan, the Nivex has been “tested over 10,000’s of miles, including Paris-Brest-Paris, Oregon Outback, and Unbound XL. This is the final version and it won’t be changed any time soon”.
You can get the Nivex Shifter in either indexed or friction flavor. Because the rear derailleur doesn’t use a return spring the indexing on the shifter is designed to be softer. The website says that the indexing “serves as a guide for the lever, but it doesn’t take away the analog feel”. The shift lever is designed to mount to a standard shift lever boss.
The derailleur and the shifter have been designed to be durable and rebuildable. Parts are available from the time of launch. The new Rear Derailleur is comprised of “more than 50 custom-made parts”. Both the derailleur and the shifter are hand-made in small batches.
Important to know:
The Nivex Rear Derailleur requires a special braze-on under the chainstay for mounting.
It cannot be mounted to derailleur hangers on the frame’s rear dropout.
It says on the Rene Herse Website that the Nivex can be retrofitted to existing bikes. Braze-on the Nivex derailleur mount and a cable guide large enough for two cables under the bottom bracket (a simple loop of wire will do).
Retail and tech specs
Nivex Rear Derailleur retail: $729
Nivex Shift Lever: $ 249
Max. rear cog size: 30-tooth
Capacity: 35 teeth
Optimized for the following cassettes:
9-11-speed: 12-28 to 11-30
6-8-speed: 13-26 to 11-30
Use 10 or 12-tooth lower pulleys to optimize chain length and tension
Weight: 176 g
Made in Seattle and Taiwan
Get more details o the new Nivex Rear Derailleur, plus check out the other goodies from Rene Herse below.