520 Grando | Trek Bikes (INE)

Overview

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

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

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.

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

2023

520 Disc

How to love life while bikepacking.

Anthill Films escapes the city with Nico Deportago-Cabrera.

Photographer Matthew DeLorme pays homage to the steelhead trout’s arduous migration to and from the Pacific Ocean by living it himself.

Features

We've spent more than three decades perfecting the 520 geometry to suit the heavy loads and high miles of multi-day touring.

Bombproof butted Platinum Series frame with a steel-smooth ride.

Shimano GRX was designed from the ground up for gravel adventure. With its gravel-specific ergonomics, optimised gearing options, rugged reliability and quiet, stable drivetrain, GRX sets itself apart from the rest of the component world.

Wider, fast-rolling tires provide traction on gravel or pavement.

A durable front rack is included to carry just what you need while keeping weight up front, providing a better ride experience for quicker, lighter adventures.

Bomb-proof butted Platinum Series frame with a steel-smooth ride.

Super-strong 36-hole rims give 520 a stout foundation for miles and miles of fully loaded riding.

ThruSkew captured quick-release skewer ensures your front wheel will never drop out unintentionally. A simple solution for added peace of mind.

We've spent more than three decades perfecting the 520 geometry to suit the heavy loads and high miles of multi-day touring.

Bontrager TLR (Tubeless Ready) Road is the first fully integrated tubeless system for road wheels. When you go tubeless with TLR, you can run lower tyre pressure for increased traction and comfort without the threat of pinch flats.

Tough Bontrager Hard-Case tyres help keep punctures from slowing you down.

Reliable stopping power in all conditions, including wet and muddy.

Bontrager stem technology lets you clip your gear directly to the stem for clean looks and maximum user friendliness.

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Specs

Frame	Trek butted chromoly disc touring, rack and mudguard mounts, 135x5 mm QR
Fork	Alloy disc touring, rack mounts, 100x5 mm ThruSkew

Hub front	Shimano M475, 6-bolt disc, 100x5 mm QR
Skewer front	130x5 mm QR, ThruSkew
Hub rear	Shimano M475, 6-bolt disc, 135x5 mm QR
Rim	Bontrager Affinity Disc, Tubeless Ready, 36-hole, 21 mm width, Presta valve
Tyre	Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40 c
Max tyre size	29x2.00" without mudguards

Shifter	Shimano Tiagra R4700, 10-speed
Front derailleur	Shimano Tiagra 4700, 34.9 mm 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
Max. chainring size	48T w/3x, 42T w/2x

Saddle	Bontrager Arvada, steel rails, 138 mm width
*Seatpost	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
*Handlebar	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
Handlebar tape	Bontrager Gel Cork tape
*Stem	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
Head set	1-1/8" threadless, sealed cartridge bearings
Brake	TRP Spyre C 2.0 mechanical disc, 160 mm rotor

Cargo rack	Bontrager Carry Forward

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 125 kg (275 lb).

Sizing

Geometry

Service

Reviews

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520 Disc

Adventure’s in the company you keep

Never in the way

Easier doesn’t mean better

All Road Tires

Front Rack

Steel frame

36-spoke wheels

ThruSkew

Touring geometry

Tubeless Ready rims

Puncture-resistant tyres

Mechanical disc brakes

Blendr stem

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