2023 Trek

520

A steel frame gravel bike with mid-range components and mechanical disc brakes.
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Manufacturer Price

$1,829
Weight31.4 lbs  
FrameSteel
SuspensionRigid
ForkAluminum
Wheels700c Aluminum
Drivetrain3 × 9
GroupsetAlivio, Sora
BrakesMechanical Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
Terrain
smoothrugged
520
Other Gravel bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

38 mph

520

36 mph

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Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full 520 model range

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Sizing
48cm

5'2" – 5'5"

51cm

5'3" – 5'7"

54cm

5'5" – 5'9"

57cm

5'7" – 6'2"

60cm

6'0" – 6'4"

63cm

6'2" – 6'6"

Rider Fit Notes

None yet.

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Price History
Reviews
BIKEPACKING.com
Miles' Flat Bar Trek 520: Little Red Corvette

Feb 2020 · Miles Arbour

The stock Trek 520, the quintessential steel touring bike in the brand's lineup, wasn't quite doing it for Miles. Here is his take on a classic, complete with a flat bar conversion, 1x11 drivetrain, and the absolute biggest tires he could fit. Find details, lots of photos, and a complete build kit here...

Read Review

Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

Trek butted chromoly disc touring, rack & fender mounts, 135x5mm QR

Tire Clearance2"

ColorsDiablo Red; Anthracite

Fork

Alloy disc touring, rack mounts, 100x5mm ThruSkew

Headset

1-1/8'' threadless, sealed cartridge bearings

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

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

Saddle

Bontrager Evoke

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

TypeRigid

Pedals

Wellgo nylon body, alloy cage

Groupset
Rear Derailleur

Shimano Alivio M4000, long cage, 36T max cog

Front Derailleur

Shimano Sora R3030, 34.9mm (w/28.6 adapter) clamp

Crank

Size: 48, 51, Shimano Alivio T4060, 48/36/26, 2-piece w/chain guard, 170mm length; Size: 54, 57, 60, 63, Shimano Alivio T4060, 48/36/26, 2-piece w/chain guard, 175mm length

Shifters

Size: 48, 51, 54, 57, 60, 63, Shimano Sora R3000, 9 speed; Size: 48, 51, 54, 57, 60, 63, Shimano Sora R3030, 3 speed

Cassette

Shimano HG200, 11-36, 9 speed

Chain

KMC X9

Brakes

TRP Spyre C 2.0 mechanical disc, 160mm rotor

TypeMechanical Disc

Wheels
Rims

Bontrager Affinity Disc, Tubeless Ready, 36-hole, 21mm width, Presta valve

Spokes

14g stainless steel

Front Hub

Shimano M475, 6-bolt disc, 100x5mm QR

Rear Hub

Shimano M475, 6-bolt disc, 135x5mm QR

Tires

Bontrager H1 Hard-case Ultimate, 700x38c w/reflective sidewall

Accessories
Racks

Size: 48, 51, 54, Bontrager BackRack Deluxe, Interchange compatible, size small; Size: 48, 51, 54, 57, 60, 63, Bontrager Carry Forward; Size: 57, 60, 63, Bontrager BackRack Deluxe, Interchange compatible, size large

Rider Notes
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Last updated March 2
Not listed for 57 days