Solid 90s mountain bike. Good for everything but technical trails. Frame is around 20" - fits 5'9" person well (at seat extension pictured), but geometry is forgiving and should work for a wide range. Tires are 1.95". Helmet, lock, tools included. I have lots of route suggestions, group rides, and general advice for biking around Denver! If you want this for longer, I'd be happy to do a week for $45 or a month for $90. Car rack is likely available at additional cost.