Rennstahl 853 Pi Gravel - Pinion C1.12i - Gravel Bike - 2026

Rennstahl 853 Pi Gravel - The all-rounder made of steel

The Rennstahl 853 Pi Gravel combines robust everyday practicality with a genuine spirit of adventure. It combines proven technology with gravel, bikepacking, and touring like no other bike on the market. This model is not only aimed at gravel enthusiasts, but also at anyone looking for a reliable, durable, and low-maintenance bike. Whether in daily city traffic or on long distances over unpaved paths, the 853 Pi Gravel impresses with its exceptional versatility and characteristic DNA, which stands for particular durability, comfort, and an unmistakable riding experience.

Highlights of the Rennstahl 853 Pi Gravel

• Steel frame
• Parapera Adventure carbon fork
• Parapera carbon stem-handlebar unit
• Parapera carbon seatpost
• Electronic Pinion C1.12i gear shift
• Low-maintenance Gates CDX toothed belt
• Stan's NoTubes Crest rims
• Tune Climbhill / Killhill hubs

Details of the Rennstahl 853 Pi Gravel

Durable, comfortable, and reliable

The frame is made of Reynolds 853 steel, a high-quality, heat-treated material that stands for durability and riding comfort like no other. Steel has a long tradition in bicycle construction and is currently experiencing a renaissance. The big advantage of steel is that it is more elastic than other materials such as aluminum and titanium, which means it absorbs bumps in the road better and provides a more comfortable riding experience. The steel frame really comes into its own on tours of length and rough surfaces.

First-class shifting comfort

The Pinion gearbox is the perfect solution for riders looking for a low-maintenance and robust shifting system. With up to 12 gears and a gear ratio range of 600%, you have the right gears for every incline, every terrain, and every speed. This gearbox is located centrally on the bottom bracket, which ensures ideal weight distribution and keeps the bicycle stable and agile on any terrain. Compared to conventional derailleur gears, it offers a significantly longer service life, as all moving parts are securely housed in the housing and neither dirt nor water can penetrate.

Quiet, clean, and durable

The Gates Carbon Drive belt drive perfectly complements the transmission and takes reliability and ride quality to a new level. Instead of a classic chain, which needs to be regularly lubricated, cleaned, and replaced, this bike uses a durable carbon belt that requires no lube and does not wear out. Thanks to this virtually maintenance-free drive, the Aristos PI Gravel remains a reliable companion even on long tours or in remote regions. The clean, efficient, and extremely durable system is ideal for anyone seeking adventure without having to constantly worry about technical maintenance.

Maximum precision at the touch of a button

The Rennstahl 853 Pi is equipped with electronic shifting that makes shifting gears more precise and easier than ever before. With a single push of a button, you can change gears in a flash, even under load, in challenging riding situations, or in extreme weather conditions. The electronic shifting is extremely fast, virtually silent, and always reliable. In addition, the system ensures that you are always riding in the optimal gear, which significantly improves your efficiency and riding experience.