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GT Aggressor Expert 2020 vs Trek Marlin 6 2021

GT 2020

Aggressor Expert
Trek 2021

Marlin 6

Details
Year	2020	2021
Category	Cross Country	Cross Country
Groupset	Shimano Altus	Shimano Altus
Crank	42-22T	36-22T
Cassette	12-32T	11-34T
Speeds	24v	16v
Weight	-	14,5 kg
Frame material	Alloy	Alloy
Wheel size	27,5" / 29"	27,5" / 29"
Suspension type	Hardtail	Hardtail
Front travel	80mm	100mm
Rear travel	-	-
Price	-	$649.99

Components
Acessories
Pedals	GT Slim Line Flat Pedal	-
Grip	-	Bontrager XR Endurance Comp
Components
Brake lever	Tektro M275	-
Brakes	Tektro HD-M275	Tektro HD-M275
Saddle	-	Bontrager Arvada
Headset	-	VP Semi-Integrada
Handlebar	-	Bontrager Alloy, 31.8mm, 5mm rise, 720mm width
Seatpost	-	Bontrager Alloy, 31.6mm, 12mm offset
Steam	-	Bontrager Alloy, 31.8mm
Drivetrain
Chain	KMC Z72	KMC Z8
Rear derailleur	Shimano Altus RD-M310 Smart 8/7s Shimano Altus RD-M310 B axle material Stainless steel Bracket body finish Painted Bracket body material Aluminum Compatible chain HG 8/7-speed Lower pulley max 34T Lower pulley min 28T Model RD-M310-Smart P axle finish Zinc plated P axle material Steel pulley.screws_material Steel Pulley teeth 13/15T Pulley cage Smart Speeds 8/7 Upper pulley max 14T Upper pulley min 11T Total capacity 43T	Shimano Altus RD-M310 Smart 8/7s Shimano Altus RD-M310 B axle material Stainless steel Bracket body finish Painted Bracket body material Aluminum Compatible chain HG 8/7-speed Lower pulley max 34T Lower pulley min 28T Model RD-M310-Smart P axle finish Zinc plated P axle material Steel pulley.screws_material Steel Pulley teeth 13/15T Pulley cage Smart Speeds 8/7 Upper pulley max 14T Upper pulley min 11T Total capacity 43T
Cassette	-	Shimano CS-HG31-8 HG Shimano CS-HG31-8 Combination names 11-30T 11-32T 11-34T Compatible chain IG/HG Lock ring finish Phosphate coated Lock ring material Steel Model CS-HG31-8 Steel gear finish Phosphate coated Steel gear pieces 8 Type HG
Crankset	-	Shimano FC-M315-2 8/7s Shimano FC-M315-2 Chain line (mm) 48.8 Chainring combination 36-22T Primary color Black Compatible bottom bracket type (square) Compatible chain HG 8/7-speed Crank arm finish Painted Crank arm material Aluminum crank_arm_length_mm.170 crank_arm_length_mm.175 Model FC-M315-2 Pitch circle diameter Riveted Q factor (mm) 179.4 Speeds 8/7 Recommended bottom bracket (threaded normal) BB-UN101 Spider arm cover finish Resin Spider arm cover material Resin Spider gear arms 4
Front derailleur	-	Shimano Altus FD-M315 Shimano Altus FD-M315 action.top_swing cable_route_type.dual_pull Chain guide finish Chrome plated Chain guide material Steel Primary color Series color Compatible chain HG 8/7-speed front_clamp_band.finish Painted front_clamp_band.material Steel Inner link finish Painted Inner link material Zinc plated Model FD-M315-TS Outer link finish Painted Outer link material Steel Rear clamp band base bracket finish Painted Rear clamp band base bracket material Steel Stroke adjusting screw finish Zinc plated Stroke adjusting screw material Steel Total capacity 14T
Bottom bracket	-	VP BC73
Shifter	-	Shimano SL-M315 RAPIDFIRE PLUS Shimano SL-M315 Base cover material Resin Clamp bolt finish Plated Clamp bolt material Steel Primary color Series color Compatible with I spec Front speeds 3 Main lever body material Resin & Steel Model SL-M315-L Mount type Clamp band Optical gear display With release_lever_body.material Resin & Steel Shifter type RAPIDFIRE PLUS Shifting lever bracket finish Painted Shifting lever bracket material Aluminum Shifting lever cable material Stainless steel Shifting lever cable adjust
Frameset
Front suspension	SR Suntour XCM-LO-DS	SR Suntour XCT 30 HLO
Frame	-	Trek Alpha Silver Aluminum
Wheels
Spokes	14g	-
Tires	-	Bontrager XR2 Comp, 29x2.20''
Rear hub	-	Formula DC-22
Front hub	-	Formula DC-20
Rims	-	Bontrager Connection 32

Features
Hydraulic disc brakes
Internal routing

Geometry
Size
Seat tube length	-	343,0
Seat tube angle	-	73,5º
Top tube length	-	537,0
Head tube length	-	90,0
Head tube angle	-	69,3º
Rake	-	44,0
Trail	-	88,0
Wheelbase	-	1043,0
Chainstay length	-	432,0
Bottom bracket drop	-	58,0
Stack height	-	559,0
Reach	-	370,0
Standover height	-	692,0
Bottom bracket height	-	292,0
Front center	-	618,0

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