Full suspension trail frame with simple but very effective suspension system with 130mm travel. Bluebird 29 is designed for 210x50mm metric shocks, 148x12mm Boost hubs and 29" wheels with tire size up to 2.4". 29" wheels provide better traction on trails and make longer trips in the mountains more comfortable. The advanced swingarm cage equipped with three Max type sealed bearings packed with waterproof Mobil grease and strong 17mm diameter axle ensures a stiff and strong frame. The higher placed pivot position offers high pedaling efficiency and eliminates pedal-bob when climbing. The low BB position provides high stability in difficult terrain while the 66˚ head tube angle ensures a perfect riding control no matter how steep is the track. A construction using shock extension yoke makes it possible to keep a full length seat tube allowing room for the new breed of dropper seat posts.