520 Grando is a steel adventure bike made for off-road excursions. This "gravel randonneuring" bike's nimble, streamlined setup and rugged parts spec is perfect for bikepacking and gravel riding.
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.
Why you'll love it
- It’s everything you love about 520, just outfitted for off-road and rough-road excursions
- 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
- 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
|Frame||Trek butted chromoly disc touring, rack & fender mounts, 135 x 5mm QR|
|Fork||520 alloy disc touring, rack mounts, 100 x 5mm ThruSkew|
|Headset||1-1/8" threadless, sealed cartridge bearings|
|Rims/Wheels||Bontrager Affinity Disc, Tubeless Ready, 36-hole, 21mm width, presta valve|
Front: Shimano M475, 6-bolt disc, 100 x 5mm QR
Rear: Shimano M475, 6-bolt disc, 135 x 5mm QR
|Spokes||14g, stainless steel, black|
|Tires||Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700 x 40c|
|Crankset||ProWheel forged alloy, 42/28, 2-piece|
|Chain||KMC X10, 10 speed|
|Front Derailleur||Shimano Tiagra 4700, 34.9mm clamp, down swing|
|Rear Derailleur||Shimano GRX RX400, long cage, 36T max cog|
|Cassette/Rear Cogs||Shimano HG50, 11-36, 10 speed|
|Shifters||Shimano Tiagra R4700, 10 speed|
|Handlebars||Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop|
|Tape/Grips||Bontrager Gel Cork tape|
|Stem||Bontrager Elite, 31.8mm, Blendr compatible, 7 degree|
|Brakes||TRP Spyre C 2.0 mechanical disc, 160mm rotor|
|Saddle||Bontrager Arvada, steel rails, 138mm width|
|Seat Post||Bontrager alloy, 27.2mm, 12mm offset|
* Subject to change without notice.
|Nautical Navy / 48cm||601842442289||1051269||52023143443Y|
|Nautical Navy / 54cm||601842442265||1051271||52023918972Y|
|Nautical Navy / 57cm||601842442258||1051272||52023413839Y|