This derailleur mod will position your jockey wheels in the optimum position to provide maximum chain wrap in the smaller cogs

Mounting bolts not included

Ease of cleaning scale (higher is better) 1-10: Non-corrosive and easy to wash off with water

working as an additional suspension member

SQLab 612 Ergowave Active 2.1 S-Tube Saddle - Black - S-Tube Rails - 150mm Wide Ignore Wholesale Tier 1 Brand Rule This derailleur mod will positionThe SQLab 612 Ergowave Active 2. 1 S Tube Saddle has been designed to provide less weight, more relief and better comfort for long distance riders on or off the road. The new 612 provides a larger Ergowave step and a deeper dip for improved Perineal relief. The wave shape and raised rear improve rearward support and provide pressure distribution, which improves power transmission to the pedal. The active movement has become lighter and smoother and is