Outer: 90% Nylon

Weight: 390gm for a size 42

The X01 DH crankset with X-SYNC technology is engineered for ultimate DH performance in the most aggressive terrain

Weigh: 550-628 grams depending on size

you should be able to seal up just about any hole

TRP G-Spec TR12 1x12 Rear Derailleur - Shifter Kit - Gold - 12 Speed Virtual Parent Outer: 90% NylonDerailleur: The new TR12 rear derailleur is able to provide a quiet and accurate ride over the roughest trails. The key feature to this pursuit is the Hall Lock. During the Race season, lead mechanic for Intense Factory Racing, John Hall, noticed excessive movement around the b knuckle when riding over rough rock gardens and in tracked out corners. This was leading to more chain skipping and slapping creating possible variances in shifting. This