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Giant STP 20 FS is a durable kids' full suspension bike with 20" wheels, kid-friendly geometry, powerful disc brakes, and a suspension fork for control on trails and streets.
Giant STP 20 FS is a durable kids' full suspension bike with 20" wheels, kid-friendly geometry, powerful disc brakes, and a suspension fork for control on trails and streets.
Giant

Giant STP 20 FS Kids Bike 2025 in Blue Palace

£549.00
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Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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When you purchase this item, you will earn of rewards points to spend on your next purchase from us. You can spend your Rewards balance in-store & online.

Hassle free returns

In the unlikely event that you are not satisfied with your purchase please feel free to return your items within 90 days of the purchase date for a full exchange or refund. Any item (excluding food, underwear or e-gift vouchers) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase.

It is recommended that you use a recorded delivery service or return to a store to ensure your items are received by us. We cannot assume responsibility for items that are lost in transit back to us.




Terms & Conditions

Items must be returned in their original packaging and unused. Refunds will be issued once the product(s) have been received and inspected.

Click & Collect customers can buy with confidence knowing that they can review the item before deciding whether it is right for you before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away, or you still have up to 90 days to return it if you are still unsure.

Please note:
1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £50 for collection (£100 from Northern Ireland). If you do not have the original box in usable condition, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid proof of purchase.

Giant STP 20 FS Kids Bike 2025 in Blue Palace

Season:2025

Brand:Giant

Code:9090003110

From the driveway to the bike park, STP 20 helps young riders make the transition from wobbly laps around the block to having fun on trails and off-road terrain.

Key Features & Benefits:

  • Dirt or Street:Lightweight, strong and durable aluminium frameset is designed to go from street riding to bike parks or trails.
  • Kid-friendly Design:Frame geometry is designed specifically for young riders with 20-inch wheels, a low standover height and taller front end for a stable ride quality.
  • Maximum control:Powerful disc brakes and suspension fork (on select models) with a lockout option puts maximum control in the rider’s hands.

Full Specification

  • Wheel Size:20"
  • Height or Age Range:6-8 years, or 115cm to 130cm (3'9" - 4'3")
  • Frame:ALUXX-Grade Aluminium
  • Fork:SR XCT L20, coil, 60mm, lockout
  • Number of Gears:7
  • Shifter:microSHIFT DS45-7 1x7
  • Chainset:Alloy forged, 30t, 127mm
  • Chain:KMC Z7
  • Rear Derailleur:Shimano Tourney
  • Cassette:Shimano CS-HG200, 12x32
  • Bottom Bracket:Sealed Cartridge
  • Pedals:Platform
  • Rims:Giant 20", alloy, 28mm inner width
  • Front Hub:Giant Disc, 28h, QR, alloy, disc
  • Rear Hub:Giant Disc, 28h, QR, alloy, disc
  • Front Tyre:Kenda Karma, 20x2.2"
  • Rear Tyre:Kenda Karma, 20x2.2"
  • Brakes:Tektro HD-J285, hydraulic [F]160mm, [R]160mm rotors
  • Handlebars:Giant Sport, alloy, 31.8mm
  • Handlebar Tape / Grips:Giant Junior
  • Stem:Forged alloy, 0-degree
  • Saddle:Giant Jr. Sport
  • Seatpost:Alloy, 27.2x250mm
  • Accessories:N/A
  • Weight:N/A
Manufacturers reserve the right to change specifications without notice based on availability at the point of assembly.

Sizing Chart for Giant STP

ModelRider Height (cm)Rider Height (' ")
STP 20115- 1303'9" - 4'3"
STP 24125 - 1454'1" - 4'9"
STP 26140 - 1604'7" - 5'3"

Geometry Chart for Giant STP
bike diagram with measurements referenced in table that follows

STP 20STP 24STP 26
BSeat Tube Angle73.0°73.0°73.5°
CTop Tube Length(mm)450495545
DHead Tube Length(mm)105105100
EHead Tube Angle69.0°69.0°67.0°
HWheelbase(mm)8879781086
IChain Stay Length(mm)365410435
KStack(mm)448524579
LReach(mm)313335374
MStand Over Height(mm)545668679.5
PCrank Length(mm)127140155


Warranty Information for Giant

ComponentWarranty Period
Bicycle frame (Downhill excluded)Lifetime
Rigid Forks10 Years
Downhill frame3 Years
Giant own brand components, Pedals, grips, bar tape, saddle, Paint & Decals2 Years
Electronic E-bike components including battery2 Years (or 600 charge cycles)

For full warranty policy please visit giant-bicycles.com

Technical Information
<ul class="techDataLitem">
<li>
<div class="techDataKey">Sizes</div>
<div class="techDataValue">One size</div>
</li>
<li>
<div class="techDataKey">Colours</div>
<div class="techDataValue">Blue Palace</div>
</li>
<li>
<div class="techDataKey">Frame</div>
<div class="techDataValue">ALUXX-grade aluminium</div>
</li>
<li>
<div class="techDataKey">Fork</div>
<div class="techDataValue">SR XCT L20, coil, 60mm, lockout</div>
</li>
<li>
<div class="techDataKey">Shock</div>
<div class="techDataValue">N/A</div>
</li>
<li>
<div class="techDataKey">Handlebar</div>
<div class="techDataValue">Giant Sport, alloy, 31.8mm</div>
</li>
<li>
<div class="techDataKey">Grips</div>
<div class="techDataValue">Giant Junior</div>
</li>
<li>
<div class="techDataKey">Stem</div>
<div class="techDataValue">Forged alloy, 0-degree</div>
</li>
<li>
<div class="techDataKey">Seatpost</div>
<div class="techDataValue">Alloy, 27.2x250mm</div>
</li>
<li>
<div class="techDataKey">Saddle</div>
<div class="techDataValue">Giant Jr. Sport</div>
</li>
<li>
<div class="techDataKey">Pedals</div>
<div class="techDataValue">Platform</div>
</li>
<li>
<div class="techDataKey">Shifters</div>
<div class="techDataValue">microSHIFT DS45-7 1x7</div>
</li>
<li>
<div class="techDataKey">Front Derailleur</div>
<div class="techDataValue">N/A</div>
</li>
<li>
<div class="techDataKey">Rear Derailleur</div>
<div class="techDataValue">Shimano Tourney</div>
</li>
<li>
<div class="techDataKey">Brakes</div>
<div class="techDataValue">Tektro HD-J285, hydraulic [F]160mm, [R]160mm rotors</div>
</li>
<li>
<div class="techDataKey">Brake Levers</div>
<div class="techDataValue">Tektro HD-J285</div>
</li>
<li>
<div class="techDataKey">Cassette</div>
<div class="techDataValue">Shimano CS-HG200, 12x32</div>
</li>
<li>
<div class="techDataKey">Chain</div>
<div class="techDataValue">KMC Z7</div>
</li>
<li>
<div class="techDataKey">Crankset</div>
<div class="techDataValue">Alloy forged, 30t, 127mm</div>
</li>
<li>
<div class="techDataKey">Bottom Bracket</div>
<div class="techDataValue">Sealed cartridge</div>
</li>
<li>
<div class="techDataKey">Rims</div>
<div class="techDataValue">Giant 20&quot;, alloy, 28mm inner width</div>
</li>
<li>
<div class="techDataKey">Hubs</div>
<div class="techDataValue">Giant Disc, 28h, QR, alloy, disc</div>
</li>
<li>
<div class="techDataKey">Spokes</div>
<div class="techDataValue">Stainless steel, 14g</div>
</li>
<li>
<div class="techDataKey">Tyres</div>
<div class="techDataValue">Kenda Karma, 20x2.2&quot;</div>
</li>
<li>
<div class="techDataKey">Weight</div>
<div class="techDataValue">The most accurate way to determine any bike’s weight is to have your local dealer weigh it for you. Many brands strive to list the lowest possible weight, but in reality weight can vary based on size, finish, hardware and accessories. All our bikes are designed for best-in-class weight and ride quality.</div>
</li>
</ul>
Sizing Information
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