Trek Marlin 7 Gen 3
$839.00
The Trek Marlin 7 Gen 3 is an aluminum cross-country mountain bike with an Alpha Silver Aluminum frame, RockShox Judy Silver 100mm fork, SRAM Eagle 12-speed drivetrain, Bontrager Kovee Tubeless Ready rims, Maxxis Rekon tires, TranzX dropper post, and Shimano MT200 hydraulic disc brakes.
Trek Marlin 7 Gen 3 Overview
The Trek Marlin 7 Gen 3 is an aluminum cross-country mountain bike built with an Alpha Silver Aluminum frame, RockShox Judy Silver fork, and SRAM Eagle 12-speed drivetrain. The frame uses internal derailleur and dropper post routing, rack and kickstand mount, and 135x5mm ThruSkew spacing.
Front suspension comes from a RockShox Judy Silver fork with Solo Air spring, rebound adjust, TurnKey hydraulic lockout, tapered steerer, and 100mm travel. Sizes XS and S use a 42mm offset fork for 27.5-inch wheels, while sizes M, ML, L, XL, and XXL use a 46mm offset fork for 29-inch wheels.
The drivetrain combines a SRAM SX Eagle 12-speed shifter, SRAM NX Eagle 12-speed rear derailleur, SRAM PG-1210 Eagle 11-50T cassette, and SRAM SX Eagle 12-speed chain. The SRAM SX Eagle crankset uses a 30T steel chainring and 49mm chainline, with size-specific crank lengths.
The wheel setup uses Formula alloy hubs with Bontrager Kovee double-wall Tubeless Ready rims. Tire sizing is size specific, with Maxxis Rekon 27.5×2.40” tires on XS and S, and Maxxis Rekon 29×2.40” tires on M, ML, L, XL, and XXL. The tires use tubeless-ready construction, EXO casing, folding beads, and 60tpi construction.
Braking is handled by Shimano MT200 hydraulic disc brakes with Shimano RT26 6-bolt rotors. Finishing parts include a Bontrager Verse Short saddle with stainless steel rails, TranzX JD-YSI34 internal dropper seatpost, Bontrager alloy handlebar, Trek Line Comp lock-on grips, Bontrager Comp stem, and VP-536 nylon platform pedals.
Key Features of Trek Marlin 7 Gen 3
- Alpha Silver Aluminum frame includes internal derailleur and dropper post routing, plus rack and kickstand mount.
- RockShox Judy Silver fork uses Solo Air spring, rebound adjust, TurnKey hydraulic lockout, and 100mm travel.
- SRAM Eagle 12-speed drivetrain pairs a SRAM SX Eagle shifter with a SRAM NX Eagle rear derailleur.
- SRAM PG-1210 Eagle 11-50T cassette gives the drivetrain a wide 12-speed gear range.
- Bontrager Kovee double-wall rims use Tubeless Ready construction and Presta valves.
- Maxxis Rekon tires use tubeless-ready construction, EXO casing, folding beads, and 60tpi casing.
- TranzX JD-YSI34 dropper seatpost uses internal routing and size-specific travel.
- Shimano MT200 hydraulic disc brakes are paired with Shimano RT26 6-bolt rotors.
Ride Use
This bike fits the cross-country mountain bike category, with an Alpha Silver Aluminum frame, RockShox Judy Silver 100mm fork, SRAM Eagle 12-speed drivetrain, and Bontrager Kovee Tubeless Ready rims. The Maxxis Rekon tires, Shimano hydraulic disc brakes, and TranzX dropper seatpost support XC riding with practical off-road control features.
Why Choose This Bike
Choose this bike for a cross-country mountain bike build centered on an Alpha Silver Aluminum frame, RockShox Judy Silver 100mm fork, SRAM Eagle 12-speed drivetrain, and Shimano MT200 hydraulic disc brakes. It also includes Formula alloy hubs, Bontrager Kovee Tubeless Ready rims, Maxxis Rekon tires, a TranzX internal dropper seatpost, Bontrager alloy cockpit parts, and VP-536 nylon platform pedals. It comes in Matte Dark Web, Magic Mint, and Fury Red Fade, with a size M weight of 14.15 kg / 31.2 lbs.
Product Specifications
| Feature | Details |
|---|---|
| Brand | Trek |
| Model | Marlin 7 Gen 3 |
| Bike Type | Cross Country Mountain Bike |
| Frame | Alpha Silver Aluminum, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew. Size XS uses a curved top tube. |
| Fork | RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, tapered steerer, 100mm QR, 100mm travel. Sizes XS and S use 42mm offset for 27.5'' wheel. Sizes M, ML, L, XL, and XXL use 46mm offset for 29'' wheel. |
| Front Hub | Formula DC-20 LW, alloy, 6-bolt, 100x5mm |
| Front Skewer | 116x5mm QR |
| Rear Hub | Formula DC-22LW, 6-bolt, Shimano 8/9/10 freehub, 135x5mm |
| Rear Skewer | 173x5mm QR |
| Rim | Bontrager Kovee, double-wall, Tubeless Ready, 23mm width, Presta valve. 28-hole on XS, S, M, ML, L, XL, XXL; 32-hole on M, ML, L, XL, XXL. |
| Tire | Maxxis Rekon, tubeless ready, EXO casing, folding bead, 60tpi. Sizes XS and S use 27.5x2.40''. Sizes M, ML, L, XL, and XXL use 29x2.40''. |
| Rim Strip | Bontrager TLR |
| Shifter | SRAM SX Eagle, 12 speed |
| Rear Derailleur | SRAM NX Eagle, 12 speed |
| Crankset | SRAM SX Eagle, 30T steel ring, 49mm chainline. 170mm length on XS, S, M; 175mm length on ML, L, XL, XXL. |
| Bottom Bracket | Truvativ Powerspline, 73mm, threaded cartridge, 118mm spindle |
| Cassette | SRAM PG-1210 Eagle, 11-50, 12 speed |
| Chain | SRAM SX Eagle, 12 speed |
| Pedal | VP-536 nylon platform |
| Saddle | Bontrager Verse Short, stainless steel rails |
| Seatpost | TranzX JD-YSI34, internal routing, 31.6mm. 100mm travel and 350mm length on XS, S; 125mm travel and 405mm length on M; 150mm travel and 456mm length on ML, L; 170mm travel and 500mm length on XL, XXL. |
| Handlebar | Bontrager alloy, 31.8mm. Size XS: 5mm rise, 690mm width. Size S: 15mm rise, 720mm width. Sizes M, ML, L, XL, XXL: 15mm rise, 750mm width. |
| Grips | Trek Line Comp, nylon lock-on |
| Stem | Bontrager Comp, 31.8mm, 7 degree. 35mm length on XS, S; 50mm length on M, ML, L; 60mm length on XL; 70mm length on XXL. |
| Headset | Semi-integrated, 1-1/8'' |
| Brake | Shimano MT200 hydraulic disc |
| Brake Rotor | Shimano RT26, 6-bolt, 160mm on XS, S, M, ML, L, XL, XXL; Shimano RT26, 6-bolt, 180mm on M, ML, L, XL, XXL. |
| Brake Set | Shimano MT200 hydraulic disc |
| Weight | M - 14.15 kg / 31.2 lbs |
| Weight Limit | Maximum total weight limit: 300 pounds / 136 kg, combined weight of bicycle, rider, and cargo |
| Color | Matte Dark Web, Magic Mint, Fury Red Fade |
| Manufacturer Warranty | Trek frames and full-suspension swing arms are covered for the lifetime of the original owner. Other parts are covered under Trek’s limited warranty. |
FAQ's Trek Marlin 7 Gen 3
What frame does the Trek Marlin 7 Gen 3 use?
This bike uses an Alpha Silver Aluminum frame with internal derailleur and dropper post routing, rack and kickstand mount, and 135x5mm ThruSkew. Size XS uses a curved top tube, while sizes S through XXL use the standard Alpha Silver Aluminum frame layout.
What drivetrain is on the Trek Marlin 7 Gen 3?
The bike uses a SRAM Eagle 12-speed drivetrain. It includes a SRAM SX Eagle shifter, SRAM NX Eagle rear derailleur, SRAM PG-1210 Eagle 11-50T cassette, SRAM SX Eagle chain, and SRAM SX Eagle crankset with a 30T steel chainring.
What wheels and tires come on the Trek Marlin 7 Gen 3?
The bike uses Formula alloy hubs with Bontrager Kovee double-wall Tubeless Ready rims. Sizes XS and S use Maxxis Rekon 27.5x2.40'' tires, while sizes M, ML, L, XL, and XXL use Maxxis Rekon 29x2.40'' tires.
What is the weight of the Trek Marlin 7 Gen 3?
The size M weight is 14.15 kg / 31.2 lbs. The maximum total weight limit is 300 pounds / 136 kg, including the bicycle, rider, and cargo.
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