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It's right for you if...

You're always planning your next bikepacking or gravel riding escape. You want a versatile steel bike that's made to last and built for adventure on roads less traveled.

The tech you get

A terrain-smoothing chromoly steel frame, alloy disc fork with a ThruSkew captured quick release skewer, wide-range Shimano 2x10 drivetrain that's great for climbing, a Shimano GRX rear derailleur for smooth shifting even on rough terrain, Bontrager tubeless ready wheels, wide, all-surface tires, an included front rack, and all-weather mechanical disc brakes.

The final word

Steel is real, and that's only part of what makes 520 Grando the perfect expedition rig. It's nimble, spec'd with off-road ready parts, and ready to rip gravel and light trails in the name of adventure.

favorite_borderWhy you'll love it

  1. It’s everything you love about 520, just outfitted for off-road and rough-road excursions
  2. ThruSkew captured quick-release skewer gives you added retention security and ease of use out on the open road
  3. The GRX rear derailleur gives you better chain retention and smooth, reliable shifting on rough terrain
  4. 520 Grando is built to hold up, and it's super reliable over the long haul
  5. There's no better way to see the world than from the saddle, and this is the bike that answers your wanderlust

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Features

Specifications

*spec applies to all sizes unless otherwise noted

Frameset
Frame Trek butted chromoly disc touring, rack & fender mounts, 135x5mm QR
Fork 520 alloy disc touring, rack mounts, 100x5mm ThruSkew
Wheels
Front hub Shimano M475, 6-bolt disc, 100x5mm QR
Rear hub Shimano M475, 6-bolt disc, 135x5mm QR
Rim Bontrager Affinity Disc, Tubeless Ready, 36-hole, 21mm width, presta valve
Spokes 14g, stainless steel, black
Tire Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40c
Drivetrain
Shifter Shimano Tiagra R4700, 10 speed
Front derailleur Shimano Tiagra 4700, 34.9mm clamp, down swing
Rear derailleur Shimano GRX RX400, long cage, 36T max cog
*Crank 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
Cassette Shimano HG50, 11-36, 10 speed
Chain KMC X10, 10 speed
Pedal Wellgo nylon body, alloy cage
Components
Saddle 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
*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
Handlebar tape Bontrager Gel Cork tape
*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
Headset 1-1/8'' threadless, sealed cartridge bearings
Brake TRP Spyre C 2.0 mechanical disc, 160mm rotor
Weight
Weight 54 - 13.28 kg / 29.27 lbs
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 275 pounds (125 kg).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Bike and frame weights are based off Trek pre-production painted frames at time of publication. Weights may vary in final production.

Sizing & fit

The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local Trek retailer.

 

Rider Height

Inseam

All measurements provided in cm unless otherwise noted.

Frame size number Wheel size A — Seat tube B — Seat tube angle C — Head tube length D — Head angle E — Effective top tube F — Bottom bracket height G — Bottom bracket drop H — Chainstay length I — Offset J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack
48 cm 700c 44.0 74.3° 11.5 69.5° 52.0 27.4 7.5 45.0 5.2 7.4 104.1 71.3 36.8 54.0
51 cm 700c 48.2 74.0° 12.5 70.0° 53.1 27.4 7.5 45.0 5.2 7.1 104.5 74.1 37.3 55.1
54 cm 700c 51.2 73.8° 14.0 71.0° 54.3 27.8 7.0 45.0 5.2 6.5 104.8 76.8 37.8 56.5
57 cm 700c 54.3 73.5° 16.0 71.8° 55.7 27.8 7.0 45.0 5.2 5.9 105.2 79.4 38.3 58.7
60 cm 700c 57.5 73.0° 20.0 71.8° 58.3 27.8 7.0 45.0 5.2 5.9 107.4 82.6 39.2 62.5
63 cm 700c 60.5 72.8° 23.0 72.3° 60.3 27.8 7.0 45.0 5.2 5.6 108.6 85.4 40.0 65.5

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