Diamondback Mountain Bike "Response". 22" aluminum frame. 26" wheels. Shimano gears. Front Suspension. The bicycle is about 15 years old but is in EXCELLENT condition since it had only been ridden about 10 times (never off-road) and has been in storage for the last 6-7 years. The bike has been fully checked out and is in perfect operating condition. Included accessories: handlebar ends, an extra seat. a seat bag, a CO2 inflator kit, an extra inner tube and a like new black Bell helmet. Asking price is $350. Email, call or text 7one6-44zero-2seven6eight.