Blank generation ics v2 cranksblanks generation ics v2 cranks have been refined and reinforced the internal clamp system ics now features a new reinforced gusset around the pinch bolt the perfect replacement or upgrade for the beginners bmx these generation ics v2 cranks are great value and reliable featuresmaterial 10037 4130 crmoaxle diameter 19mmeight spline spindle for easy fitting and rebound damping includedcrmo end bolts includedweight tbabuyblank componentsfrom chain reac