Bike Forums - View Single Post - Brand new eTap group; *one* cog doesn't shift
Old 03-05-18, 11:52 AM
  #1  
Bob Ross
your god hates me
 
Bob Ross's Avatar
 
Join Date: Apr 2006
Posts: 3,892

Bikes: 2018 Cannondale CAADX 105 SE, 2016 Richard Sachs, 2010 Carl Strong, 2006 Cannondale Synapse

Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 452 Post(s)
Liked 41 Times in 22 Posts
Brand new eTap group; *one* cog doesn't shift

Just had a new SRAM eTap group installed on my 8-year-old Strong frame a little over a month ago. New chain, new cassette. Everything works wonderfully, very smooth, quick(enough), silent(enough) ...except for this *one* cog! Both when shifting up or shifting down, when it gets to this one cog it gets all hung up, either hesitates for too many (>5) seconds, or doesn't shift at all.

What could be causing this? The cogs on either side of this one aberration show absolutely no hesitation in either direction, so it doesn't seem like it could be a RD cable tension issue. [edit: duh, it's electronic, there aren't any cables!]

Could they have installed one cog backwards? (and would that even have this sort of effect?) Any other ideas? Thanks.

Last edited by Bob Ross; 03-05-18 at 08:54 PM.
Bob Ross is offline