I have an Everest brand mountain bike for sale that has been used for less than two months, so it's in almost-new condition. The bike has been great for getting around town and exploring around the valley a little. Equipped with a rack, kickstand, bell, lock, and water bottle cage. I also have a Prowell brand (from Thailand) helmet, also used for less than two months, no damage and still in new condition.
Rs 5,000 for the bike, 1,500 for the helmet, or 6,000 for both together - or best offer.
I'm in the Jawalakhel area if you want to come see it, and I can send you a picture if you want.