2017 GT Grunge 20

2017 · Grunge

2017 GT Grunge 20 is a kids' mountain bike built around the Legit Fit system, featuring an alloy frame, 89mm one-piece crankset, and rear coaster brake.

Description

Legit Fit System

Better Bike Design. Better Experience.

Learning to ride a bike is memorable, but it isn’t always easy. Kids have to focus on balance, pedaling, and speed… all while trying not to tumble. Up until now kids’ bikes have basically been grown up bikes miniaturized for smaller bodies. Designing bikes this way means proper body positioning and pedaling mechanics are compromised.

Not anymore.

GT has developed a new line of kids' bikes that utilize its Legit Fit system and are designed specifically for those growing shredders. The Legit Fit system enables GT to build kids' bikes that have narrower cranks, proper gearing and improved body positioning. All with the benefits of optimizing pedaling, balance, and speed right from the start. Even better is that it's a system that works for kids of all ages...no more needing to "grow into" a bike.

 

+     GT Legit Fit System: Better Positioning, Faster Starting and Easier Pedaling

Technical specification

Frame & Fork

Frame
16" GT Legit Fit Design, Alloy
Fork
GT Hi-Ten Steel, 1" Threaded Steerer

Drivetrain

Crankset
Forged One-Piece Type, 89mm, Steel, 28T
Bottom bracket
Steel, Ball type
Chain
1/2" x 1/8"
Freewheel
16T Coaster
Pedals
Jr. BMX design, resin

Wheels

Rims
Alloy, 20 hole
Tires
16 x 1.95"
Hubs
Steel, 20 Hole (F) 3/8" Axle, (R) Coaster

Cockpit & contact

Handlebar
Steel 500mm width x 130mm rise
Stem
2-Bolt Alloy Top, Steel Quill, 30mm
Grips
92mm closed end
Headset
Steel, 1"
Saddle
GT 1-piece
Seat post
Alloy
Seatpost clamp
Single Bolt

Brakes

Brakes
(R) Coaster