It has been a month since the said group set arrived. And two weeks ago, while the GS was adjusted via apps by the mechanic to shift to the biggest cog 36t, it stopped shifting at the FD side to the lqrge chainring. While it does not bother me in riding not to have the 50t, I am a little bit disappointed that the bn GS does not workk 100%. Tried again the apps, but this post could not make the large chain ring work. Reviewed again the manual and the apps. It has to be mechanical issue. The chain has to be 0.5 to 3 mm from the side of the FD cage.
I tried to adjust the crank so that the chain ring would move inward. Then reviewed again the adjustment of the C limiting screw of the FD assembly. I tried to screw it in while in the small chain ring mode. Then all of a sudden, the chain ring was inside the cage by 2 - 3 mm. And trieid to shift it and it worked. Eureka. PTL
Its a good buy after all.
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