Compare: 2021 Trek Marlin 5 vs Specialized Rockhopper Sport 29

Overview
Ride Feel
Gearing
Spec Level
Geometry
Specs

Bike Comparison

Only show differences

	Marlin 52021 Trek	Rockhopper Sport 292021 Specialized

MSRP	$599	$800
Where to Buy	— $1 At	— $1 At
Category	Crosscountry	Crosscountry
Weight	31.8 lbs
	2.9	3.2
Frame	Aluminum	Aluminum
Fork	Suntour XCE	Suntour XCM
Wheels	Aluminum	Aluminum
Wheel Size	27.5″ / 29″	29″
Brakes	Hydraulic Disc	Hydraulic Disc
Groupset	Tourney, Altus	Altus
Drivetrain	3 × 7	2 × 9
Suspension	Hardtail	Hardtail
Front Travel	100mm	100mm
Brand Site	trekbikes.com	specialized.com
Summary	The Trek Marlin 5 and Specialized Rockhopper Sport 29 are both aluminum frame hardtail crosscountry bikes. The Marlin 5 has 27.5″ / 29″ aluminum wheels and better components, while the Rockhopper Sport 29 has 29″ aluminum wheels and a better fork.

Similar Bikes

Accessories

Ride Feel

Based on frame geometry and build specs.

Terrain

easyextreme

Handling

nimblestable

Marlin 5

Rockhopper Sport 29

Other Crosscountry bikes

Gear Range

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

30 mph

Marlin 5

Highest gear

(descending)

Spec Level

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

Geometry

Specs

	Marlin 52021 Trek	Rockhopper Sport 292021 Specialized

Frame	Size: XS, S, Alpha Silver Aluminium, curved top tube, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5 mm QR; Size: M, ML, L, XL, XXL, Alpha Silver Aluminium, internal routing, chainstay disc-brake mount, rack and kickstand mount, 135x5 mm QR BB Standard: BSA, 73mm, Threaded Tire Clearance: 2.2" Colors: Trek Black / Lithium Grey; Dark Aquatic / Trek Black; Factory Orange / Lithium Grey	A1 premium butted alloy, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger, stealth rack mounts, dropper post compatible BB Standard: BSA, 73mm, Threaded Tire Clearance: 2.2" Colors: Trek Black / Lithium Grey; Dark Aquatic / Trek Black; Factory Orange / Lithium Grey
Fork	Size: XS, SR Suntour XCE 28, coil spring, preload, 42 mm offset for 27.5" wheel, 100 mm QR, 80 mm travel; Size: S, SR Suntour XCE 28, coil spring, preload, 42 mm offset for 27.5" wheel, 100 mm QR, 100 mm travel; Size: M, ML, L, XL, XXL, SR Suntour XCE 28, coil spring, preload, 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel Travel: 100mm Spring Type: Coil	SR Suntour XCM 29, 30mm stanchions, Rx Tune, coil spring, QR, 90/100mm travel (size-specific), 42mm offset Travel: 100mm Spring Type: Coil
Bottom Bracket	VP BC73, 73 mm, threaded cartridge	Square-tapered, 73mm, internal bearings, 122.5mm spindle
Headset	Semi-integrated, 1-1/8''
Stem	Size: XS, Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 50 mm length; Size: S, Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length; Size: M, Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 70 mm length; Size: ML, L, Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 80 mm length; Size: XL, XXL, Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 90 mm length	Stout 3D-forged alloy, 31.8mm, 6-degree rise
Handlebar	Size: XS, Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width; Size: S, M, ML, L, XL, XXL, Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width	Stout Mini Rise, alloy, 9-degree backsweep, 15mm rise, 31.8mm
Saddle	Bontrager Arvada, steel rails, 138 mm width	Bridge Sport, steel rails
Seatpost	Size: XS, S, M, Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length; Size: ML, L, XL, XXL, Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length	Alloy, 12mm offset, 2-bolt clamp, 30.9mm
Pedals	VP-536 nylon platform	Specialized Body Geometry Fitness, platform, plastic
Grips	Bontrager XR Endurance Comp	Specialized Trail Grips, lock-on

Groupset

Rear Derailleur	Shimano Tourney TY300	Shimano Altus, RD-M2000, 9-speed
Front Derailleur	Shimano Tourney TY300, 34.9 mm clamp, down swing, down pull	Shimano Altus FD-M2020 2-speed
Crank	Size: XS, S, M, Shimano Tourney TY301, 42/34/24, 170 mm length; Size: ML, L, XL, XXL, Shimano Tourney TY301, 42/34/24, 175 mm length	Stout 2x, forged alloy
Shifters	Size: XS, S, M, ML, L, XL, XXL, Shimano Altus M315, 3-speed; Size: XS, S, M, ML, L, XL, XXL, Shimano Altus M315, 7 speed	Shimano Altus, RapidFire Plus, 9-speed
Cassette	Shimano HG200, 12-32, 7-speed	SunRace, 9-Speed, 11-36t
Chain	KMC Z7, 7-speed	KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™
Brakes	Tektro HD-M275 hydraulic disc, 180 mm rotor	Front: Tektro HD-M275, hydraulic disc, 180/160mm, Rear: Tektro HD-M275, hydraulic disc, 160mm

Wheels

Rims	Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve	Specialized alloy, disc only, double-wall, 25mm inner width, 32h
Spokes	14 g stainless steel	Stainless, 14g
Front Hub	Formula DC-20, alloy, 6-bolt, 5x100 mm QR	Formula 6-Bolt, disc, 100x9mm spacing, quick-release, 32H
Rear Hub	Formula DC-27, alloy, 6-bolt, 7sp freehub, 135x5 mm QR	Formula 6-Bolt freehub, disc, 135x9mm spacing, quick-release, 32H
Tires	Size: XS, 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"; Size: M, ML, L, XL, XXL, Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.00"	Front: Ground Control Sport, 29x2.3", Rear: Ground Control Sport, 29x2.3"

Riders Also Compared