MSRP | $1,829 | ($1,347) | $1,829 |
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Where to Buy | — $1 At | — $1 At | — $1 At |
Category | Gravel | Gravel | Gravel |
Weight | 31.4 lbs | 31.4 lbs | 29.3 lbs |
Steel | Steel | Steel | |
Fork | Aluminum | Aluminum | Aluminum |
Wheels | Aluminum | Aluminum | Aluminum |
Wheel Size | 700c | 700c | 700c |
Clearance | 2" | 2" | 2" |
Brakes | Mechanical Disc | Mechanical Disc | Mechanical Disc |
Groupset | Alivio, Sora | Alivio, Sora | GRX 400, Tiagra |
Drivetrain | 3 × 9 | 3 × 9 | 2 × 10 |
Brand Site | |||
Summary | The Trek 520, Trek 520 Disc, and Trek 520 Grando are all steel frame gravel bikes with mechanical disc brakes. The 520 Grando has better components. |
Based on frame geometry and build specs.
Frame | Trek butted chromoly disc touring, rack & fender mounts, 135x5mm QR Tire Clearance: 2" Colors: Diablo Red; Anthracite | Size: 48, 63, Trek butted chromoly disc touring, rack and mudguard mounts, 135x5 mm QR; Size: 51, 54, 57, 60, butted chromoly disc touring, rack and mudguard mounts, 135x5 mm QR Tire Clearance: 2" Colors: Diablo Red; Anthracite | Trek butted chromoly disc touring, rack & fender mounts, 135x5mm QR Tire Clearance: 2" Colors: Diablo Red; Anthracite |
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Fork | Alloy disc touring, rack mounts, 100x5mm ThruSkew | Alloy disc touring, rack mounts, 100x5 mm ThruSkew | Alloy disc touring, rack mounts, 100x5mm ThruSkew |
Headset | 1-1/8'' threadless, sealed cartridge bearings | 1-1/8" threadless, sealed cartridge bearings | 1-1/8'' threadless, sealed cartridge bearings |
Stem | Size: 48, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length; Size: 51, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length; Size: 54, 57, Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 100mm length; Size: 60, 63, Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 110mm length | Size: 48, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length; Size: 51, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length; Size: 54, 57, Bontrager Elite, 31.8 mm clamp, Blendr-compatible, 7-degree, 100 mm length; Size: 60, 63, Bontrager Elite, 31.8 mm clamp, Blendr-compatible, 7-degree, 110 mm length | Size: 48, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length; Size: 51, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length; Size: 54, 57, Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 100mm length; Size: 60, 63, Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 110mm length |
Handlebar | Size: 48, Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 40cm width; Size: 51, 54, Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 42cm width; Size: 57, 60, 63, Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 44cm width | Size: 48, Bontrager Comp VR-C, alloy, 31.8 mm, 100 mm reach, 124 mm drop, 40 cm width; Size: 51, 54, Bontrager Comp VR-C, alloy, 31.8 mm, 100 mm reach, 124 mm drop, 42 cm width; Size: 57, 60, 63, Bontrager Comp VR-C, alloy, 31.8 mm, 100 mm reach, 124 mm drop, 44 cm width | Size: 48, Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 40cm width; Size: 51, 54, Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 42cm width; Size: 57, 60, 63, Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 44cm width |
Saddle | Bontrager Evoke | Bontrager Evoke | Bontrager Arvada, steel rails, 138mm width |
Seatpost | Size: 48, Bontrager alloy, 27.2mm, 12mm offset, 250mm length; Size: 51, 54, 57, 60, 63, Bontrager alloy, 27.2mm, 12mm offset, 330mm length | Size: 48, Bontrager alloy, 27.2 mm, 12 mm offset, 250 mm length; Size: 51, 54, 57, 60, 63, Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length | Size: 48, Bontrager alloy, 27.2mm, 12mm offset, 250mm length; Size: 51, 54, 57, 60, 63, Bontrager alloy, 27.2mm, 12mm offset, 330mm length |
Pedals | Wellgo nylon body, alloy cage | Wellgo nylon body, alloy cage | Wellgo nylon body, alloy cage |
Rear Derailleur | Shimano Alivio M4000, long cage, 36T max cog | Shimano Alivio M4000, long cage, 36T max cog | Shimano GRX RX400, long cage, 36T max cog |
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Front Derailleur | Shimano Sora R3030, 34.9mm (w/28.6 adapter) clamp | Shimano Sora R3030, 34.9 mm (w/28.6 adapter) clamp | Shimano Tiagra 4700, 34.9mm clamp, down swing |
Crank | Size: 48, 51, Shimano Alivio T4060, 48/36/26, 2-piece w/chain guard, 170mm length; Size: 54, 57, 60, 63, Shimano Alivio T4060, 48/36/26, 2-piece w/chain guard, 175mm length | Size: 48, 51, Shimano Alivio T4060, 48/36/26, 2-piece w/chain guard, 170 mm length; Size: 54, 57, 60, 63, Shimano Alivio T4060, 48/36/26, 2-piece w/chain guard, 175 mm length | Size: 48, 51, ProWheel forged alloy, 42/28, 2-piece, 170mm length; Size: 54, 57, 60, 63, ProWheel forged alloy, 42/28, 2-piece, 175mm length |
Shifters | Size: 48, 51, 54, 57, 60, 63, Shimano Sora R3000, 9 speed; Size: 48, 51, 54, 57, 60, 63, Shimano Sora R3030, 3 speed | Size: 48, 51, 54, 57, 60, 63, Shimano Sora R3000, 9-speed; Size: 48, 51, 54, 57, 60, 63, Shimano Sora R3030, 3-speed | Shimano Tiagra R4700, 10 speed |
Cassette | Shimano HG200, 11-36, 9 speed | Shimano HG200, 11-36, 9-speed | Shimano HG50, 11-36, 10 speed |
Chain | KMC X9 | KMC X9 | KMC X10, 10 speed |
Brakes | TRP Spyre C 2.0 mechanical disc, 160mm rotor | TRP Spyre C 2.0 mechanical disc, 160 mm rotor | TRP Spyre C 2.0 mechanical disc, 160mm rotor |
Rims | Bontrager Affinity Disc, Tubeless Ready, 36-hole, 21mm width, Presta valve | Bontrager Affinity Disc, Tubeless Ready, 36-hole, 21 mm width, Presta valve | Bontrager Affinity Disc, Tubeless Ready, 36-hole, 21mm width, Presta valve |
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Spokes | 14g stainless steel | 14 g stainless steel | |
Front Hub | Shimano M475, 6-bolt disc, 100x5mm QR | Shimano M475, 6-bolt disc, 100x5 mm QR | Shimano M475, 6-bolt disc, 100x5mm QR |
Rear Hub | Shimano M475, 6-bolt disc, 135x5mm QR | Shimano M475, 6-bolt disc, 135x5 mm QR | Shimano M475, 6-bolt disc, 135x5mm QR |
Tires | Bontrager H1 Hard-case Ultimate, 700x38c w/reflective sidewall | Bontrager H1 Hard-case Ultimate, 700x38c w/reflective sidewall | Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40c |
Racks | Size: 48, 51, 54, Bontrager BackRack Deluxe, Interchange compatible, size small; Size: 48, 51, 54, 57, 60, 63, Bontrager Carry Forward; Size: 57, 60, 63, Bontrager BackRack Deluxe, Interchange compatible, size large | Size: 48, 51, 54, 57, 60, 63, Bontrager BackRack Deluxe, Interchange compatible, maximum load 25 kg; Size: 48, 51, 54, 57, 60, 63, Bontrager Carry Forward | Bontrager Carry Forward |
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