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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.
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.
| Frame | Trek butted chromoly disc touring, rack & fender mounts, 135x5mm QR |
|---|---|
| Fork | 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 |
| 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 |
| *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 |
|
| Headset | 1-1/8" threadless, sealed cartridge bearings |
| Brake | TRP Spyre C 2.0 mechanical disc, 160mm 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 125kg (275lbs). |
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, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.
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