Product Info

The 2021 GT Grunge 20 is a kids bike for the up and coming rider. This model is starting to get some similar features to adult bikes, with an alloy frame designed using the LegitFit system which provides better positioning, easier pedaling, and a faster start to your next ride. While you’ll also get a range of durable alloy components, such as stem, seat post and rims. When your kids are flying around and having a great time on their bike, they’ll need to be able to stop at any moment. For this reason it is equipped with coaster brakes, for the perfect amount of braking power for the little ones, so that they can be kept safe and sound. This bike offers reliability, durability and good looks in one package, perfect for a younger rider.

FRAME 20” GT LegitFit Design, Alloy
FORK GT Hi-Ten Steel, 1” Threaded Steerer
RIMS Alloy, 28h
FRONT HUB Steel, Nutted Axle
REAR HUB Steel, Nutted Axle, Coaster Brake
SPOKES Stainless Steel, 14g
FRONT TYRE GT 20 x 1.95”
REAR TYRE GT 20 x 1.95”
CRANKSET Forged One-Piece Type, 127mm, 32T
CHAIN KMC S1, 1/2×1/8”
HANDLEBAR Steel Riser Bar, 176mm Rise, 580mm Width
GRIPS 120mm Closed End
STEM 2-Bolt Alloy Top, Steel Quill
HEADSET 1” Threaded, Steel
BRAKES Coaster Rear, Rear Alloy VBrake
SADDLE GT 1-piece
SIZES One Size
EXTRAS Fender, Bar, Stem Pad


Weight 15 kg
Dimensions 160 × 25 × 80 cm

Black, Blue, Grey, Red

Free Click & Collect
Pickup from a Bike Society store.

Available from 1-2 days.

Free Home Delivery (Adelaide)
within Adelaide metro area.

Available from 1-2 working days.

Australia wide, live rate.

Live rate will calculate once address is entered in Checkout.

Available shipping options show at Checkout. Courier delivery not available on Scott bikes.