2025 Trek Roscoe Gen 4 vs 2026 State Bicycle Co 4130 Trail
The ML is the State Bicycle Co 4130 Trail size closest to your ML Trek Roscoe Gen 4. 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 State Bicycle Co 4130 Trail
Compared with the Trek Roscoe Gen 4 in ML, the State Bicycle Co 4130 Trail in ML places the top of the head tube at about the same height and 10 mm further forward, relative to the bottom bracket. Its wheelbase is 9 mm longer, which can contribute to stability at speed.
- Frame stack
- −2 mm
- About the same height
- Frame reach
- +10 mm
- Longer frame reach
- Wheelbase
- +9 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the Trek Roscoe Gen 4 is drawn. The State Bicycle Co 4130 Trail numbers we have for size ML are missing the chainstay length.
Geometry side by side
| Measurement | Trek Roscoe Gen 4 ML | State Bicycle Co 4130 Trail ML | Difference |
|---|---|---|---|
| Reach | 455 | 465 | +10 mm |
| Stack | 648 | 646.5 | −2 mm |
| Head tube angle | 65 | 65 | ±0.0° |
| Seat tube angle | 74.1 | 74.4 | +0.3° |
| Effective top tube | 614 | 645.5 | +32 mm |
| Chainstay length | 430 | not listed | |
| Wheelbase | 1203 | 1211.7 | +9 mm |
| BB drop | 61 | 56 | −5 mm |
| BB height | 311 | not listed | |
| Standover | 740 | not listed | |
| Seat tube length | not listed | 430 | |
| Head tube length | 105 | 120 | +15 mm |
Differences are the State Bicycle Co 4130 Trail minus the Trek Roscoe Gen 4. Full charts: 2025 Trek Roscoe Gen 4, 2026 State Bicycle Co 4130 Trail.
Where each sits in its class
Trek Roscoe Gen 4State Bicycle Co 4130 Trail
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.
| Part | Trek Roscoe Gen 47 Gen 4 | State Bicycle Co 4130 TrailTrail |
|---|---|---|
| Frame | Trek Alpha Platinum Aluminum | State Bicycle Co. 4130 |
| Fork | RockShox Recon Silver RL | RockShox Psylo RC Silver |
| Shifter | Shimano CUES U6000 | Shimano Deore |
| Derailleur | Shimano CUES U6000 GS | Shimano Deore |
| Cassette | Shimano CUES LG300 LINKGLIDE | Shimano cassette |
| Chain | Shimano LG500 | Sumc Chain |
| Crankset | Shimano CUES U6000 | State Bicycle Co. Crankset |
| Chainring | Shimano CUES | State Bicycle Co. Chainring |
| Bottom bracket | Shimano MT501 | State Bicycle Co. Bottom Bracket |
| Pedals | VP-536 | not listed |
| Wheelset | Shimano TC500 | WTB i30 TCS |
| Tire | Bontrager Gunnison Pro XR | WTB Trail Boss |
| Rim | Bontrager Line TLR 30 | not listed |
| Brake | Shimano MT200 | Tektro HD-M275 |
| Rotor | Shimano SM-RT10 | Tektro rotor |
| Handlebar | Bontrager Comp Alloy | State Bicycle Co. Low Rise |
| Stem | Bontrager Comp | State Bicycle Co. 3D-Forged |
| Grips | Trek Line | not listed |
| Headset | FSA Orbit | State Bicycle Co. Headset |
| Seatpost | TranzX JD-YSI34 | State Bicycle Co. Seatpost |
| Saddle | Bontrager Verse P3 | State Bicycle Co. Saddle |
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