SRAM Rear Derailleur X-5 10-speed Medium Cage Aluminum Black SS-GRSB-A1 It is constructed from Anodized

It is constructed from Anodized AL-6061 alloy and weighs in at 285-grams

Motor & Battery

rubber and seals

BBB Cycling BCR-32S CompactGear Campagnolo UT/PT 110 PCD Compact Small Chainring - 36T Black

smoother is indeed faster

SRAM Rear Derailleur X-5 10-speed Medium Cage Aluminum Black SS-GRSB-A1 It is constructed from AnodizedSRAM Rear Derailleur X 5 10 speed Medium Cage Aluminum BlackLeveraging the legendary history of SRAM shifting, the X5 rear derailleur provides incredible shifting speed and precision EXACT ACTUATION technology eliminates slop and shifting variation. DIRECT ROUTE technology for lighter effort shifting 36 tooth cassette compatibility