I was disappointed to discover that the Shimano Di2 system on my Trek Speed Concept didn’t have enough buttons to support manual shifting or D-Fly (i.e. changing pages on your Garmin). I can live without the manual shifting, but not D-Fly, so I set to figuring out how to add extra shifters to the aerobars on the bike.
Featured Guide
October 17, 2022
Install Shimano SW-R9150 Satellite Shifter on a Time Trial (TT) or Tri Bike
![](https://www.mamilian.bike/wp-content/uploads/2022/10/Install-Shimano-SW-R9150-TT-Bike.png)
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