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
- 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
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Tubeless Ready rims
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 tire pressure for increased traction and comfort without the threat of pinch flats.
ThruSkew captured quick release skewer ensures your front wheel will never drop out unintentionally. A simple solution for added peace of mind.
Bombproof butted Platinum Series frame with a steel-smooth ride.
Mechanical disc brakes
Reliable stopping power in all conditions, including wet and muddy.
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.
We've spent more than three decades perfecting the 520 geometry to suit the heavy loads and high miles of multi-day touring.
All Road Tires
Wider, fast-rolling tires provide traction on gravel or pavement.
*spec applies to all sizes unless otherwise noted
|Frame||Trek butted chromoly disc touring, rack & fender mounts, 135x5mm QR|
|Fork||520 alloy disc touring, rack mounts, 100x5mm ThruSkew|
|Hub front||Shimano M475, 6-bolt disc, 100x5mm QR|
|Hub rear||Shimano M475, 6-bolt disc, 135x5mm QR|
|Rim||Bontrager Affinity Disc, Tubeless Ready, 36-hole, 21mm width, presta valve|
|Spokes||14g stainless steel|
|Tire||Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40c|
|Max tire size||29x2.00" without fenders|
|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|
ProWheel forged alloy, 42/28, 2-piece, 170mm length
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|
|Saddle||Bontrager Arvada, steel rails, 138mm width|
Bontrager alloy, 27.2mm, 12mm offset, 250mm length
51, 54, 57, 60, 63
Bontrager alloy, 27.2mm, 12mm offset, 330mm length
Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 40cm width
Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 42cm width
57, 60, 63
Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 44cm width
|Handlebar tape||Bontrager Gel Cork tape|
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length
Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 100mm length
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||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).|
Sizing & Tech
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 retailer.
158.0 - 163.0 cm
5'2.2" - 5'4.2"
74.0 - 77.0 cm
29.1" - 30.3"
162.0 - 168.0 cm
5'3.8" - 5'6.1"
76.0 - 79.0 cm
29.9" - 31.1"
168.0 - 174.0 cm
5'6.1" - 5'8.5"
78.0 - 82.0 cm
30.7" - 32.3"
173.0 - 184.0 cm
5'8.1" - 6'0.4"
81.0 - 86.0 cm
31.9" - 33.9"
185.0 - 190.0 cm
6'0.8" - 6'2.8"
86.0 - 90.0 cm
33.9" - 35.4"
190.0 - 197.0 cm
6'2.8" - 6'5.6"
89.0 - 93.0 cm
35.0" - 36.6"
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|