Shimano Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed Long Cage Black MFPN=Y32203620 SRAM Model ID: BB-DUB-PF30-A1

SRAM Model ID: BB-DUB-PF30-A1

}SRAM 900 Front Hub - 15/12/QR x 100mm 6-Bolt Black 24h

Asymmetric Bead Socket Technology brings Stan’s easy inflation and the most reliable airtight seal to wider offset carbon rims

}Full Speed Ahead Integrated Headset Upper IS-2 1-1/8 IS41

Shimano Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed Long Cage Black MFPN=Y32203620 SRAM Model ID: BB-DUB-PF30-A1Shimano Acera RD M3020 SGS Rear Derailleur 7 8 Speed Long Cage Black. The Shimano Acera RD M3020 rear derailleur features Double Servo technology to provide smooth precise shifting and helps you ride challenging terrain with fewer interruptions. Double Servo mechanism enables the rear derailleur to move in an optimum path Versatile performance and wide compatibility SGS Long cage TECH SPECS Cage Length Long Chain Wrap Capacity (teeth) 45 Color Black