Quiver

2020 Trek 520 vs 2020 OPEN MIN.D.

The M is the OPEN MIN.D. size closest to your 51 Trek 520. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.

What changes on the OPEN MIN.D.

Compared with the Trek 520 in 51, the OPEN MIN.D. in M places the top of the head tube 9 mm higher and about as far forward, relative to the bottom bracket. Its wheelbase is 67 mm shorter, which can contribute to quicker direction changes.

Frame stack
+9 mm
Higher front end
Frame reach
±0 mm
About the same reach
Wheelbase
−67 mm
Shorter: quicker to change direction
Head angle
+2.5°
Steeper: sharper steering
Chainstays
n/a
One of the bikes has no number for this

The two frames

We can't draw these frames yet. The Trek 520 numbers we have for size 51 are missing the seat angle. The numbers below still compare.

Geometry side by side

MeasurementTrek 520 51OPEN MIN.D. MDifference
Reach373373±0 mm
Stack551560+9 mm
Head tube angle70.0°72.5+2.5°
Effective top tube531550+19 mm
Chainstay length450not listed
Wheelbase1045978−67 mm
BB drop7571−4 mm
BB height274not listed
Standover741769+28 mm
Seat tube length482491+9 mm
Head tube length125158+33 mm
Seat tube anglenot listed72.5

Differences are the OPEN MIN.D. minus the Trek 520. Full charts: 2020 Trek 520, 2020 OPEN MIN.D..

Where each sits in its class

Trek 520OPEN MIN.D.

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

Each bike is ranked against the other road bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.

What each ships with

The stock build of each bike's first listed trim. Parts that match are dimmed.

PartTrek 520520OPEN MIN.D.MIN.D.
ShifterShimano Sora R3000not listed
DerailleurShimano Sora R3030, Shimano Deore M4000not listed
CassetteShimano HG200not listed
ChainKMC X9not listed
CranksetShimano Alivio T4060not listed
TireBontrager H2 Hard-Case UltimateSchwalbe Pro One
HubShimano M475not listed
RimBontrager Affinitynot listed
BrakeTRP Spyre C 2.0SRAM HRD Force AXS
HandlebarBontrager Comp VR-CENVE Compact
SaddleBontrager Evokefizik Antares Versus Evo
Framenot listedOPEN MIN.D.
Wheelsetnot listedDT Swiss CRC 1400 SPLINE DB 24

Know what is on every bike.

Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.

Explore the app
A Transition Relay build sheet: frame, fork, shock and drivetrainThe Relay’s ride photo galleryThe Relay’s ride spectrum and 2D frame geometryThe garage: five bikes and 99 recorded partsA Specialized Tarmac SL8 road build sheet