Amazon.com : Rear Derailleur Cassette Chain with 12 Speed Shifter, 12 Speed Groupset for Mountain Bike High Performance Heavy Duty for Mountain Bike : Sports & Outdoors
Amazon.com : SHIMANO Deore FC-T6010 Deore 10-Speed chainset, 48/36/26T, with chainguard, Black, 175 mm : Sports & Outdoors