
Bikes up to 60% offWe monitor over 40,000 bikes daily to find the best prices
Today’s DealsSTP 20
A 20″ aluminum frame mountain youth bike with mid-range components and mechanical disc brakes.
Compare the full range
Manufacturer Price
$580| Weight | 22.0 lbs |
|---|---|
| Frame | Aluminum |
| Suspension | Rigid |
| Fork | Aluminum |
| Wheels | 20″ Aluminum |
| Drivetrain | 1 × 7 |
| Groupset | Tourney |
| Brakes | Mechanical Disc |
Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.
Compare the full STP model range
View Comparison3'9" – 4'4"
None yet.
Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

Nov 2025 · Matt Beer
Giant and Liv have a bike for mini-shredders, groms, and parents alike to jam out at the pumptrack.

May 2023 · May 2, 2023
It wasn’t that long ago that ‘kids’ mountain bikes were really limited and basic, but not any more... Take a look at the ‘Giant STP 20’ which boasts a high quality fully alloy frame along with a well thought out component spec which including a set of suspension forks, 20” wheels, a 7-speed drivetrain and hydraulic disc brakes. And, this impressive package retails in Australia for $749 which we think represents extremely good value for money. In our opinion this [...]
| Frame | ALUXX-grade aluminum Color: Sandstorm |
|---|---|
| Fork | alloy, rigid |
| Shock | N/A |
| Bottom Bracket | cartridge |
| Stem | forged alloy, 0-degree |
| Handlebar | Giant Sport, alloy, 31.8mm |
| Saddle | Giant Jr. Sport |
| Seatpost | alloy, 27.2x250mm Type: Rigid |
| Pedals | platform |
| Grips | Giant Junior |
| Rear Derailleur | Shimano Tourney |
|---|---|
| Front Derailleur | N/A |
| Crank | alloy forged, 30t, 127mm |
| Shifters | microSHIFT DS45-7 |
| Cassette | Shimano CS-HG200, 12x32 |
| Chain | KMC Z7 |
| Brakes | mechanical disc [F]160mm, [R]160mm rotors Type: Mechanical Disc |
| Brake Levers | alloy, junior |
| Rims | Giant 20", alloy, 28mm inner width |
|---|---|
| Spokes | stainless, 14g |
| Front Hub | Giant Disc, 28h, QR, alloy, disc |
| Rear Hub | Giant Disc, 28h, QR, alloy, disc |
| Tires | Kenda Karma, 20x2.6" |
First added May 4
Last updated February 28
Not listed for 90 days