rama dartmoor thunderbird fr ridehubThe Thunderbird FR is a hardcore freeride frame built for the toughest bikepark lines, big jumps, and wild rides with friends on double black diamonds. With 180mm of rear travel and the ability to fit up to 200mm of fork travel (including a double crown), the Thunderbird FR knows no limits. The design is based on the proven Horst Link suspension system, and the geometry allows for a mullet setupa 29" front wheel and a 27. 5" rear wheel. This is a bike