The M series is wider for extra hold and stability. The fin can be used in a 2 + 1 set up, but performs best as a single on longboards with a wider tail than 15 inches. ?? Available materials : Fiberglass smoke/ Available sizes : 10" ?
FUTURES 3.75 QD2 Blackstix 3.0 Turquoise / Carbon - rear fins
FUTURES 4.00 QD2 Blackstix 3.0 Light Green / Carbon - rear fins
FUTURES 4.0 QD2 rear Fins Honeycomb Smoke / Black / Yellow The QD2 4.0 Honeycomb is a medium size quad rear with a Ride Number of 5.3.
FUTURES 4.15 QD2 Rear Fins Honeycomb Smoke / Black / White The QD2 4.15 Honeycomb is a large size quad rear with a Ride Number of 5.2.