The new RX800 / 805 derailleurs have many characteristics in common with their "siblings", the ULTEGRA R8000 / R8050 derailleurs, including the same high level of shift precision or SHIMANO SHADOW RD derailleur design. However, the stabilizer mechanism (SHIMANO SHADOW RD +) is now added to the new RX800 / 805 derailleurs, which stabilizes the chain especially on rough, uneven surfaces. As with the SHIMANO mountain bike derailleurs, the switch for this SHADOW RD + Friction Damper is located on the top of the derailleur body. In the "on" position, the forward and backward movement of the rear derailleur cage is extremely slowed down, reducing the impact of the chain and thus the risk of jumping off and interconnecting as well as the noise.
The RX800 / 805 derailleurs are compatible with SHIMANO's dual-control shift / brake levers (Di2 or mechanical) and can be used on 28- to 34-tooth cages as the largest sprocket. This makes these rear derailleurs ideal for racing bikes designed for off-road or adventure use, including wheels with cyclocross or compact ratios from 46-36Z to 50-34Z cranks.
SHADOW RD + rear derailleur
Easily adjustable chain stabilizer to prevent chain slamming or jumping off the chain
Rear switching stages:
HG-EV and HG-X 11-fold
Max. Difference front:
Max. Largest pinion:
Min. Largest pinion:
Max. Smallest pinion:
Min. Smallest sprocket:
1 x Shimano ULTEGRA RX RD-RX800 rear derailleur 11-speed (see item description for details)
Currently we can offer the manufacturer info only in 汉语:
Über die Marke Shimano
Currently we can offer the item group info only in 汉语:
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