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Info
Your first real freestyle BMX, done right. The GT Slammer Mercado packs modern park-and-street essentials into an easy-handling 20" package: a tough Hi-Ten steel frame with gusset, a responsive 31 mm offset fork, big 2.4" tyres for grip, and reliable 25/9 gearing. It’s built to help new riders learn fast and have fun without the price sting.
Why you’ll love it
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Strong, confidence-building chassis: 100% Hi-Ten steel frame with DT gusset; Hi-Ten fork with tapered legs and 31 mm offset for responsive steering.
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Modern freestyle drivetrain: 25T steel sprocket, 9T cassette driver, and GT Power Series 3-piece chromoly 170 mm cranks (19 mm spindle).
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Easy speed control: seat-stay mounted U-brake with clean, straight cable routing.
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Durable wheels: 36h single-wall rims with GT NBS 2.4" tyres for comfort and traction.
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Beginner-friendly cockpit: 8.5" two-piece handlebar and railed saddle for simple, solid adjustments as you grow your skills.
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Park-ready details: external 1-1/8" head tube and removable rotor tabs if you want to add a detangler later.
Key specifications
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Frame: 100% Hi-Ten steel, DT gusset, American BB, seat-stay U-brake mounts, external 1-1/8" head tube, removable rotor tabs
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Fork: Hi-Ten steel, tapered legs, 31 mm offset
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Wheels & Tyres: 20" alloy single-wall rims (36h); GT NBS 2.4" tyres
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Hubs: Front steel loose-ball 3/8"; Rear alloy semi-sealed 14 mm cassette (9T)
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Drivetrain: GT Power Series 3-pc chromoly 170 mm cranks, 19 mm (8-spline) spindle; 25T chainring; KMC S1 chain; 9T driver
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Brakes: U-brake (rear)
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Handlebar: 8.5" two-piece
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Saddle: railed, junior size
Note: Graphics/colours and small component details can vary by region and season. Specs may change without notice.
Frame
Frame: 100% Hi-Ten Steel Tubes, DT Gusset, American BB, Seat Stay U-Brake, External 1-1/8" H/T, Removable Rotor Tabs
Fork: 100% Hi-Ten, Tapered Legs, 31mm Offset
Wheel size: 20
Wheels
Rims: Alloy Single Wall, 36h
Front hub: Steel Loose Ball 3/8" Axle
Rear hub: Alloy Semi-Sealed 14mm Cassette
Front tyre: GT NBS 2.4"
Rear tyre: GT NBS 2.4"
Spokes: Stainless Steel, 14g
Drivetrain
Rear cogs: 9T 1pc. Driver
Chain: KMC S1
Crank: GT Power Series 3pc Chromoly 170mm, 19mm x 8T Spindle, GT NBS 25T Steel Chainwheel
Bottom bracket: American Loose Ball Bearing
Pedals: GT Logo PC Platform
Cockpit
Handlebar: GT 2pc Freestyle, 100% Hi-Ten Steel, 8.5"H x 29"W, 3°Up, 11° Back
Stem: GT NBS Top Load 40mm, 32mm Rise
Grips: GT Super Soft Flangeless
Headset: 1-1/8" Threadless, Steel
Seatpost: Alloy, 25.4mm x 200mm
Saddle: Railed saddle
Brakes
Brakes: NBS Alloy U-Brake w/ Soft Compound Pad
Brake levers: NBS Alloy

| SKU | GTG44302U10OS |
| Barcode # | 038675250475 |
| Brand | GT |
| Shipping Weight | 15.0000kg |
| Shipping Width | 0.250m |
| Shipping Height | 0.700m |
| Shipping Length | 1.200m |
| Shipping Cubic | 0.210000000m3 |
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