MSRP | $199 | $549 |
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Where to Buy | — $1 At | $549 At Trek |
Category | General Youth | General Youth |
Weight | 21.1 lbs | |
Aluminum | Aluminum | |
Fork | Steel | Aluminum |
Wheels | Aluminum | Aluminum |
Wheel Size | 20″ | 24″ |
Brakes | Rim | |
Groupset | microSHIFT Acolyte | |
Drivetrain | Single-speed | 1 × 8 |
Brand Site | ||
Summary | The GT Grunge Coaster 20" is a 20″ aluminum frame general youth bike. |
Frame | 20" GT LegitFit Design, Alloy | Alpha Silver Aluminum, 24'' |
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Fork | GT Hi-Ten Steel, 1" Threaded Steerer | Wahoo 24'' alloy, V-brake bosses, ThruSkew 5mm QR |
Bottom Bracket | Steel, Ball type | Sealed cartridge, 68mm |
Headset | Steel, 1" | Integrated, sealed cartridge bearings |
Stem | 2-Bolt Alloy Top, Steel Quill | Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length |
Handlebar | Steel 580mm width x 176mm rise | Bontrager alloy, 31.8mm, 15mm rise, 580mm width |
Saddle | GT 1-piece | Kids' padded, integrated seatpost, Blendr light mount, 31.6x270mm |
Seatpost | Alloy | |
Pedals | Jr. BMX design, resin | Kids' Satellite, 9/16 thread |
Grips | 120mm closed end | Size: 24" wheel, Kids' grip, 108mm width, lock-on; Size: 24" wheel, Kids' grip, 110mm width; Size: 24" wheel, Kids' grip, 108mm width |
Rear Derailleur | microSHIFT Acolyte M5180S, 34-38T max cog | |
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Crank | Forged One-Piece Type, 127mm, 32T | Alloy, 28T steel ring, chainguard, 127mm length |
Shifters | microSHIFT Acolyte SL-M6285, 8 speed | |
Cassette | 16T Coaster | microSHIFT Acolyte H083, 11-38, 8 speed |
Chain | KMC Z410A, 1/2" x 1/8" | KMC Z8 |
Brakes | (F) N/A, (R) Coaster | Alloy linear-pull |
Brake Levers | Kids' alloy brake lever, black |
Rims | Alloy, 28 Hole | Alloy 24'', 28h |
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Front Hub | (F) Steel, 28 Hole, 3/8" Axle, (R) Steel, 28 Hole, Coaster | Formula alloy, 100mm ThruSkew |
Rear Hub | Formula FM32 alloy, 135x5mm | |
Tires | GT 20 x 1.95" (F/R) | Bontrager Connection Comp, wire bead, 30 tpi, 24x2.00'' |