Garmin's TT bikes: A Di2 TT brake lever and shifter buttons, built into a mechanical lever body and hood.  |  Photo: Zack Vestal
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Garmin's TT bikes: A Di2 TT brake lever and shifter buttons, built into a mechanical lever body and hood.
Garmin's TT bikes: A Di2 TT brake lever and shifter buttons, built into a mechanical lever body and hood.  |  Photo: Zack Vestal
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