The Mongoose Impasse HD is a bike that will take you to the trails and to school. With 21 speeds and a Shimano rear derailleur climbing even the biggest hills will be easier. The Impasse HD can take on rugged trails or play it cool on the sidewalk. There is nothing you can't do on a Mongoose.
- Mongoose aluminum 29" mountain frame
- element suspension fork for smooth riding
- 21 speeds SRAM twist shifters with Shimano rear derailleur
- Front & rear disc brakes for all condition braking
- alloy wheel with front quick release