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The Shimano GRX Di2 ST5 is the electronic 11-speed derailleur for the Stromer ST5
Vorbau: Comfort Stem +20 Grad | 110 mm
Easy Installation: Quick to install – no special tools required
acoustic warning system
Sealed Bearings
Cover Top Tube ABS Actuator Gen2 Frame The Shimano GRX Di2 ST5The Cover Top Tube ABS Actuator Gen2 is a firmly screwed on frame cover that securely integrates the ABS unit into the top tube of the Stromer ST5 Pinion. As a mechanically mounted flap, it reliably protects the underlying ABS Unit from external influences such as moisture, dirt, and mechanical stress, ensuring stable and maintenance friendly integration into the frame system. Installation instructions sold separately: The appropriate installation