SRAM RED 2x Chainring Kit - 50/37t 2x12-Speed 8-Bolt Direct Mount BLK/Silver E1 ModelNumber=K3296 3mm 1-piece 6-bolt thick rotor

3mm 1-piece 6-bolt thick rotor is designed specifically for DHR and E-MTB brakes only

Standard model designed for road bikes and gear while the large size is more for mountain bikes and able to store a 29 inch tube

}SRAM Red eTap 11-Speed Rear Derailleur Limit Screw Kit

Model Protek BR Size 700c Width 47mm Compound Protek Bead Non-Folding Type Non-Tubeless Color Black Weight 1014g

SRAM RED 2x Chainring Kit - 50/37t 2x12-Speed 8-Bolt Direct Mount BLK/Silver E1 ModelNumber=K3296 3mm 1-piece 6-bolt thick rotorOne piece 2x chainring results in a lighter weight, stiffer, more durable crankset X Range gearing technology gives you more range and a smoother gear progression, so youre always in the right gear Crisp and accurate front shifts Compatible with 8 bolt crank arms SRAM Model ID: CR RED KIT E1 TECH SPECS Chainring Comp. SRAM FlatTop Speed 12 Teeth 50 37 BCD Direct Mount SRAM 8 Bolt