A worker hangs custom-built bike frames made of bamboo at a small community in Victoria, Tarlac, north of Manila, January 12, 2011. Bamboo bikes are made from grown bamboo lumber, treated and dried to form the base of the bike. Abaca fibres are then wrapped around the lumber joints and sealed by adhesive to form the bike's frame. REUTERS/Cheryl Ravelo (PHILIPPINES - Tags: ENVIRONMENT SOCIETY)