MSRP | $639 | $1,099 | $800 |
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Where to Buy | — $1 At | — $1 At | — $1 At |
Category | Crosscountry | Crosscountry | Crosscountry |
Weight | 32.4 lbs | 29.5 lbs | |
Aluminum | Aluminum | Aluminum | |
Fork | Suntour XCT (coil) | RockShox Judy (air) | Suntour XCM (coil) |
Wheels | Aluminum | Aluminum | Aluminum |
27.5″ / 29″ | 29″ / 29″ | 29″ | |
Brakes | Hydraulic Disc | Hydraulic Disc | Hydraulic Disc |
Groupset | Altus, Tourney | Deore | Altus |
Drivetrain | 3 × 8 | 1 × 10 | 2 × 9 |
Suspension | Hardtail | Hardtail | Hardtail |
Front Travel | 100mm | 100mm | 100mm |
Brand Site | |||
Summary | The Trek Marlin 6, Trek X-Caliber 7, and Specialized Rockhopper Sport 29 are all aluminum frame hardtail crosscountry bikes. The Marlin 6 has 27.5″ / 29″ aluminum wheels; the X-Caliber 7 has 29″ / 29″ aluminum wheels, better components, and a better fork; and the Rockhopper Sport 29 has 29″ aluminum wheels. |
Based on frame geometry and build specs.
Frame | Alpha Silver Aluminum, internal derailleur, dropper post and brake routing, chainstay brake mount, rack & kickstand mount, G2 Geometry on 29ers | Alpha Gold Aluminium, tapered head tube, internal derailleur and dropper post routing, rack and kickstand mount, Boost141, 5 mm QR | 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 |
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Fork | SR Suntour XCT 30 HLO, coil spring, preload, hydraulic lockout, G2 Geometry w/51mm offset on 29ers, 100mm travel (13.5: 80mm travel) Travel: 100mm Spring Type: Air | Size: XS, RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 42 mm offset, 100x5 mm QR, 80 mm travel; Size: S, RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 42 mm offset, 100x5 mm QR, 100 mm travel; Size: M, M/L, L, XL, XXL, RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 46 mm offset, 100x5 mm QR, 100 mm travel Travel: 100mm Spring Type: Air | SR Suntour XCM 29, 30mm stanchions, Rx Tune, coil spring, QR, 90/100mm travel (size-specific), 42mm offset Travel: 100mm Spring Type: Air |
Bottom Bracket | Sealed cartridge, 73mm | Square-tapered, 73mm, internal bearings, 122.5mm spindle | |
Headset | 1-1/8˝ threadless, semi-integrated, semi-cartridge bearings | Semi-integrated, loose ball bearing, 1-1/8'' top, 1.5'' bottom | |
Stem | Bontrager alloy, 31.8mm, 7 degree, Blendr compatible | Size: XS, S, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length; Size: M, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length; Size: M/L, L, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length; Size: XL, XXL, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length | Stout 3D-forged alloy, 31.8mm, 6-degree rise |
Handlebar | Bontrager alloy, 31.8mm, 5mm rise, 720mm width (13.5: 690mm width) | Size: XS, Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width; Size: S, M, M/L, 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 | Bontrager Arvada, steel rails, 138 mm width | Bridge Sport, steel rails |
Seatpost | Bontrager alloy, 2-bolt head, 31.6mm, 12mm offset | Size: XS, S, Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length; Size: M, Bontrager alloy, 31.6 mm, 12 mm offset, 360 mm length; Size: M/L, 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 | VP-536 nylon platform | Specialized Body Geometry Fitness, platform, plastic |
Grips | Bontrager XR Endurance Comp | Bontrager XR Trail Comp, nylon lock-on | Specialized Trail Grips, lock-on |
Rear Derailleur | Shimano Altus M310 | Shimano Deore M5120, long cage | Shimano Altus, RD-M2000, 9-speed |
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Front Derailleur | Shimano Altus M313 | Shimano Altus FD-M2020 2-speed | |
Crank | Shimano Tourney TY501, 42/34/24 | Size: XS, S, M, Shimano Deore M5100, 30T steel ring, Boost, 170 mm length; Size: M/L, L, XL, XXL, Shimano Deore M5100, 30T steel ring, Boost, 175 mm length | Stout 2x, forged alloy |
Shifters | Shimano Altus M310, 8 speed | Shimano Deore M4100, 10 speed | Shimano Altus, RapidFire Plus, 9-speed |
Cassette | Shimano HG200, 12-32, 8 speed | Shimano Deore M4100, 11-46, 10-speed | SunRace, 9-Speed, 11-36t |
Chain | KMC Z7 | KMC X10, 10-speed | KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™ |
Brakes | Tektro HD-275 hydraulic disc (13.5 & 15.5: Tektro HD-276 short reach lever) | Shimano MT200 hydraulic disc | Front: Tektro HD-M275, hydraulic disc, 180/160mm, Rear: Tektro HD-M275, hydraulic disc, 160mm |
Rims | Bontrager Connection 32-hole double-walled | Size: XS, S, Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23 mm width, Presta valve; Size: M, M/L, L, XL, XXL, Bontrager Kovee, double-wall, Tubeless-Ready, 28-hole, 23 mm width, Presta valve; Size: M, M/L, L, XL, XXL, Bontrager Kovee, double-wall, Tubeless-Ready, 32-hole, 23 mm width, Presta valve | Specialized alloy, disc only, double-wall, 25mm inner width, 32h |
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Spokes | 14 g stainless steel | Stainless, 14g | |
Front Hub | Formula DC20 alloy | Formula DC-20, alloy, 6-bolt, 100 mm ThruSkew | Formula 6-Bolt, disc, 100x9mm spacing, quick-release, 32H |
Rear Hub | Formula DC22 alloy | Formula DC-2241, alloy, 6-bolt, Shimano 8/9/10 freehub, Boost141, 5 mm QR | Formula 6-Bolt freehub, disc, 135x9mm spacing, quick-release, 32H |
Tires | Bontrager XR2, 29x2.20˝ front, 29x2.0˝ rear (13.5 & 15.5: 27.5x2.20˝) | Size: XS, S, Bontrager XR2 Comp, wire bead, 30 tpi, 27.5x2.20"; Size: M, M/L, L, XL, XXL, Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.20" | Front: Ground Control Sport, 29x2.3", Rear: Ground Control Sport, 29x2.3" |
Disc Rotors | Size: XS, S, M, M/L, L, XL, XXL, Shimano RT26, 6-bolt,160 mm; Size: L, XL, XXL, Shimano RT26, 6-bolt,180 mm |