Quiver

2026 State Bicycle Co 4130 Trail vs 2026 Trek Roscoe Gen 4

The ML is the Trek Roscoe Gen 4 size closest to your ML State Bicycle Co 4130 Trail. 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 Trek Roscoe Gen 4

Compared with the State Bicycle Co 4130 Trail in ML, the Trek Roscoe Gen 4 in ML places the top of the head tube at about the same height and 10 mm further back, relative to the bottom bracket. Its wheelbase is 9 mm shorter, which can contribute to quicker direction changes.

Frame stack
+2 mm
About the same height
Frame reach
−10 mm
Shorter frame reach
Wheelbase
−9 mm
Shorter: quicker to change direction
Head angle
±0.0°
About the same head angle
Chainstays
n/a
One of the bikes has no number for this

The two frames

We can't draw these frames yet. The State Bicycle Co 4130 Trail numbers we have for size ML are missing the chainstay length. The numbers below still compare.

Geometry side by side

MeasurementState Bicycle Co 4130 Trail MLTrek Roscoe Gen 4 MLDifference
Reach465455−10 mm
Stack646.5648+2 mm
Head tube angle6565±0.0°
Seat tube angle74.474.1−0.3°
Effective top tube645.5614−32 mm
Wheelbase1211.71203−9 mm
BB drop5661+5 mm
Seat tube length430400−30 mm
Head tube length120105−15 mm
Chainstay lengthnot listed430
BB heightnot listed311
Standovernot listed740

Differences are the Trek Roscoe Gen 4 minus the State Bicycle Co 4130 Trail. Full charts: 2026 State Bicycle Co 4130 Trail, 2026 Trek Roscoe Gen 4.

Where each sits in its class

State Bicycle Co 4130 TrailTrek Roscoe Gen 4

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

Each bike is ranked against the other trail 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.

PartState Bicycle Co 4130 TrailTrailTrek Roscoe Gen 47 Gen 4
FrameState Bicycle Co. 4130Trek Roscoe
ForkRockShox Psylo RC SilverRockShox Recon Silver
ShifterShimano DeoreShimano CUES U6000
DerailleurShimano DeoreShimano CUES U6000 GS
CassetteShimano cassetteShimano LG300
ChainSumc ChainShimano LG500
CranksetState Bicycle Co. CranksetShimano CUES U6000
ChainringState Bicycle Co. ChainringShimano 30t
Bottom bracketState Bicycle Co. Bottom BracketShimano MT501
WheelsetWTB i30 TCSBontrager Line TLR 30
TireWTB Trail BossBontrager Gunnison Pro XR
BrakeTektro HD-M275Shimano MT200
RotorTektro rotorShimano SM-RT10
HandlebarState Bicycle Co. Low RiseBontrager Comp
StemState Bicycle Co. 3D-ForgedBontrager Comp
HeadsetState Bicycle Co. HeadsetFSA Orbit
SeatpostState Bicycle Co. SeatpostTranzX JD-YSI34
SaddleState Bicycle Co. SaddleBontrager Verse P3
Pedalsnot listedVP 536
Hubnot listedShimano TC500
Rimnot listedBontrager Line TLR 30
Gripsnot listedTrek Line
Dropper postnot listedTranzX JD-YSI34

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