Feature
HEGY/SUMC Bicycle Chain
Material: Manganese/Cr-Mo Steel

Speed grade: speed 12
Link: 126L
color:Golden/Colorful

compatible SHIMANO, Campagnolo ,SRAM and other bike 12 Speed

Remark:Each Chain will send 1 Package(2 pairs) missing link as gift,Silver Chain with Silver link,Golden Chian with Golden link,Colorful Chain with Colorful link

XD Cassette

Color: silver, gold, black, colorful

Speed: 11-speed and 12-speed

Application: various XD hubs, compatible with 11 and 12 speed variable speed SRAM SX, NX, GX, XX1 EAGLE

Main features
12S 9-50T(B)
Material : High strength steel
12S 9-46/50T(C) 12S 10-50/52T
Package includes:Shows as your choose!!!!
Material : CR-MO,Ultralight CNC integrated processing, light weight, exquisite appearance,it is more stronger than ULT cassette which made of 7075 Alloy and Steel.

Main features12S 9-50T(B) Material : High strength steel12S 9-46/50T(C) 12S 10-50/52TPackage includes:Shows as your choose!!!!Material : CR-MO,Ultralight CNC integrated processing, light weight, exquisite appearance,it is more stronger than ULT cassette which made of 7075 Alloy and Steel.

Main features
12S 9-50T(B)
Material : High strength steel
12S 9-46/50T(C) 12S 10-50/52T
Package includes:Shows as your choose!!!!
Material : CR-MO,Ultralight CNC integrated processing, light weight, exquisite appearance,it is more stronger than ULT cassette which made of 7075 Alloy and Steel.