GT Aggressor 20" Kid's Mountain BikeThe Aggressor 20" mountain bike is modeled on GT's full-size Aggressor, but it's scaled to fit younger riders. It has a lightweight aluminum frame with low standover, Suntour suspension fork with 50mm travel, 7-speed drivetrain, Twist shifters and linear-pull brakes. Outfitted with GT All Terrain tires, the Aggressor is perfect for the trail or the neighborhood.
Riding with your kids is a fun adventure. Encourage fun, fitness and safety with our printable Performance Bicycle Kid's Coloring Book [PDF].
This bicycle is part of our Kid's Bike Growth Program.
View our Kid's Bike Age and Sizing Chart to help you decide which bike is best for your child.
- 6061 aluminum 20" mountain bike frame is lightweight and durable, and features a low standover height
- Suntour suspension fork has 50mm of travel to help soak up bumps
- Shimano Tourney rear derailleur and 7-speed twist shifter make gear changes easy
- Powerful linear-pull brakes let young riders control their speed easily and effectively
- Alloy double-wall wheels with stainless steel spokes are trail-tough and perfect for pounding the pavement, too
GT Aggressor 20" Kid's Mountain Bike
- bottom bracket:
- Sealed cartridge
- Tektro Linear-pull
- Shimano Hyperglide freewheel, 14-34T, 7-Speed
- KMC Z50, 7-speed
- Prowheel Youth 36T
- SR Suntour M3010 with 50mm travel
- 6061 aluminum frame, Triple Triangle construction, CNC'd bottom bracket, dropouts, and 1 1/8" head tube
- front derailleur:
- GT MTB
- MTB riser bar
- Threadless steel, 1 1/8"
- Tektro 3-Finger
- GT Slimline Flat
- rear derailleur:
- Shimano Tourney TX35
- rear shock:
- GT Youth MTB
- GT alloy, microadjust
- Shimano RS-35 Twist (Right Side Only)
- standover height:
- Alloy Ahead
- GT All Terrain, 1.95"
- Rims: Alloy double-wall, 3-hole; Hubs: Alloy 32-hole; Spokes: Stainless 14G