KMC X12 12 Speed Chain - Gold bikebox Includes unique UV detection system

Includes unique UV detection system that highlights any punctures

reliable shifting that has made Ultegra the benchmark for serious road cyclists

Compared to standard bicycle inner tubes which are made of WheelsTybutyl rubber

bring up more dirt

130 (39t only)

KMC X12 12 Speed Chain - Gold bikebox Includes unique UV detection systemKMCs latest breakthrough in chain technology. Our new 12 speed compatible chain out performs the competition in every aspect! One Chain for All 100% compatibility on all leading derailleur systems. Asymmetrical chamfering avoids interference. Impeccable precision. Phenomenal shifting performance. Compatible with SRAM & Shimano 12 Speed Eagle MTB or Campagnolo Road 12 Speed Drivetrains Specifications 1 2" x 11 128" 126 Links Titanium Nitride Gold