Compare Bikes

The Norco Fluid FS 2 29, Specialized Stumpjumper Alloy, and Trek Marlin 7 are all aluminum frame mountain bikes with upper mid-range components. The Norco has higher gearing, while the Trek has a rigid seatpost and 27.5″ / 29″ wheels. Explore the differences below.

2021 Norco Fluid FS 2 29
2021 Specialized Stumpjumper Alloy
2021 Trek Marlin 7
MSRP$2,699$2,500$899
Online Price
$1

At

$1

At

$1

At

CategoryTrailTrailCrosscountry
Weight30.4 lbs
FrameAluminumAluminumAluminum
ForkRockShox 35 Silver
RockShox 35 Silver
RockShox Judy
Wheel Size29″29″27.5″ / 29″
Wheel MaterialAluminumAluminumAluminum
Brake TypeHydraulic DiscHydraulic DiscHydraulic Disc
GroupsetDeore
SX Eagle
Deore, FSA
Drivetrain1 × 121 × 121 × 10
Gear Range

Norco Fluid FS 2 29

28 mph

Specialized Stumpjumper Alloy

24 mph

Trek Marlin 7

22 mph
SuspensionFullFullHardtail
Front Travel130mm140mm100mm
Rear Travel120mm130mm-
SeatpostDropperDropperRigid
Brand Sitenorco.comspecialized.comtrekbikes.com
Suggested Bikes

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more. Learn more

Spec level →$0$500$1,000$1,500$2,000$2,500
Fluid FS 2 29
Stumpjumper Alloy
Marlin 7

Geometry

Specs
Frame

6061 Alloy Trail, 120mm Travel, 27.5" and 29" Options

Alloy chassis and rear-end, asymmetrical design, 29 Trail Geometry, horst pivot BB adjustment, threaded BB, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel

Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR

Fork

RockShox 35 Silver R, 130mm Travel, 46mm Offset (27.5), 51mm Offset (29)

RockShox 35 Silver, Solo Air, 44mm offset, rebound adjust, TurnKey lockout, 15x110mm Boost™ Maxle® Lite thru-axle, 140mm of travel

Size: S, RockShox Judy, coil spring, preload, TurnKey lockout, 42mm offset for 27.5'' wheel, 100mm QR, 100mm travel; Size: M, ML, L, XL, XXL, RockShox Judy, coil spring, preload, TurnKey lockout, 46mm offset for 29'' wheel, 100mm QR, 100mm travel

Rear Shock

Rockshox Deluxe Select, 190x42.5mm (27.5), 190x45mm (29)

X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout S1:190x42.5mm, S2-S6: 190x45mm

Bottom Bracket

Shimano Cartridge Bearing, BSA Threaded

SRAM Powerspline

FSA, 73mm, threaded cartridge, 122.5mm spindle

Headset

Sealed Bearing, Tapered

Semi-integrated, 1-1/8''

Stem

6061 Alloy, 50mm Length, 35mm Clamp

Alloy Trail Stem, 35mm bar bore

Size: S, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm length; Size: M, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm length; Size: ML, L, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 80mm length; Size: XL, XXL, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 90mm length

Handlebar

TranzX 6061 Butted Alloy, 780mm, 20mm Rise

Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 30mm rise, 780mm width

Bontrager alloy, 31.8mm, 5mm rise, 720mm width

Saddle

Norco XC

Body Geometry Bridge Saddle, steel rails

Bontrager Arvada, steel rails, 138mm width

Seatpost

X-Fusion Manic Dropper, 31.6mm, 125mm (s), 150mm (M), 170mm (L, XL)

TranzX dropper, 34.9mm, S1: 100mm, S2: 125mm, S3: 150mm. S4-S5: 170mm, S6- 200mm

Size: S, M, Bontrager alloy, 31.6mm, 12mm offset, 330mm length; Size: ML, L, XL, XXL, Bontrager alloy, 31.6mm, 12mm offset, 400mm length

Pedals

VP Nylon Flat

Grips

VP Lock-On

Bontrager XR Trail Comp, nylon lock-on

Groupset
Rear Derailleur

Shimano Deore RD-M6100

SRAM SX Eagle, 12-speed

Shimano Deore M5120, long cage

Crank

Shimano Deore FC-MT510-1, 32T, 170mm (XXS - S), 175mm (M - XL)

SRAM SX Eagle, S1:165mm, S2-S5: 170mm, S6: 175mm, 30T

Size: S, M, FSA Alpha Drive, 28T steel ring, Boost, 170mm length; Size: ML, L, XL, XXL, FSA Alpha Drive, 28T steel ring, Boost, 175mm length

Shifters

Shimano Deore SL-M6100-R I-Spec EV

SRAM SX Eagle, trigger, 12-speed

Shimano Deore M4100, 10 speed

Cassette

Shimano Deore CS-M6100-12, 10-51T, 12 Speed

SRAM PG-1210 Eagle, 11-50t

Shimano Deore M4100, 11-46, 10 speed

Chain

Shimano Deore CN-M6100

SRAM SX Eagle, 12-speed

KMC X10, 10 speed

Brakes

Shimano BR-MT420, 4 Piston, Organic Pads

Tektro Gemini Comp, hydraulic disc, resin pad, 200mm

Shimano MT200 hydraulic disc

Brake Levers

Shimano BR-MT420

Wheels
Rims

Stan's Flow D, 32H

Roval 29, hookless alloy, 30mm inner width, tubeless ready

Bontrager Connection, double-wall, 32-hole, 20mm width, presta valve

Spokes

Stainless, 14g

14g stainless steel

Front Hub

Shimano HB-MT400-B, 15x110mm Boost, Center Lock

Alloy, sealed cartridge bearings, 15x110mm thru-axle, 28h

Formula DC-20, alloy, 6-bolt, 5x100mm QR

Rear Hub

Shimano FH-MT510-B, 12x148mm Boost, Micro Spline, Center Lock

Alloy, sealed cartridge bearings, 12x148mm thru-axle, 28h

Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm QR

Tires

Maxxis Dissector 2.4" 3C/EXO/TR

Front: Butcher, GRID casing, GRIPTON® compound, 29x2.3", Rear: Purgatory, GRID Casing, GRIPTON® compound, 29x2.3"

Size: S, Bontrager XR2 Comp, wire bead, 30 tpi, 27.5x2.20''; Size: M, ML, L, XL, XXL, Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.20''

Disk Rotors

Shimano SMRT54, 180mm

Size: S, M, ML, L, XL, XXL, Shimano RT26, 6-bolt,160mm; Size: L, XL, XXL, Shimano RT26, 6-bolt,180mm