2026 Trek Marlin Gen 3 vs 2026 Specialized Epic World Cup RockShox SIDLuxe WCID Ultimate Frameset
The M is the Specialized Epic World Cup RockShox SIDLuxe WCID Ultimate Frameset size closest to your M Trek Marlin Gen 3. 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 Specialized Epic World Cup RockShox SIDLuxe WCID Ultimate Frameset
Compared with the Trek Marlin Gen 3 in M, the Specialized Epic World Cup RockShox SIDLuxe WCID Ultimate Frameset in M places the top of the head tube 9 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 13 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −9 mm
- Lower front end
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- −13 mm
- Shorter: quicker to change direction
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- −8 mm
- Shorter: livelier
The two frames
Trek Marlin Gen 3, MSpecialized Epic World Cup RockShox SIDLuxe WCID Ultimate Frameset, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Trek Marlin Gen 3 M | Specialized Epic World Cup RockShox SIDLuxe WCID Ultimate Frameset M | Difference |
|---|---|---|---|
| Reach | 440 | 440mm | ±0 mm |
| Stack | 609 | 600mm | −9 mm |
| Head tube angle | 66.5 | 66.5° | ±0.0° |
| Seat tube angle | 74 | 74.5° | +0.5° |
| Effective top tube | 615 | 612mm | −3 mm |
| Chainstay length | 438 | 430mm | −8 mm |
| Wheelbase | 1163 | 1150mm | −13 mm |
| BB drop | 46 | 57mm | +11 mm |
| Standover | 747 | 764mm | +17 mm |
| Seat tube length | 420 | 410mm | −10 mm |
| Head tube length | 105 | 95mm | −10 mm |
| Stack-to-reach | 1.38 | not listed | |
| BB height | not listed | 313mm | |
| Fork length | not listed | 516mm |
Differences are the Specialized Epic World Cup RockShox SIDLuxe WCID Ultimate Frameset minus the Trek Marlin Gen 3. Full charts: 2026 Trek Marlin Gen 3, 2026 Specialized Epic World Cup RockShox SIDLuxe WCID Ultimate Frameset.
Where each sits in its class
Trek Marlin Gen 3Specialized Epic World Cup RockShox SIDLuxe WCID Ultimate Frameset
Each bike is ranked against the other XC 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 Marlin Gen 34 Gen 3 | Specialized Epic World Cup RockShox SIDLuxe WCID Ultimate FramesetS-Works - RockShox SIDLuxe WCID Ultimate Frameset |
|---|---|---|
| Frame | Trek Alpha Silver | not listed |
| Fork | SR Suntour XCE 28 | not listed |
| Shifter | Shimano Acera M315 | not listed |
| Derailleur | Shimano CUES U2000 ESSA | not listed |
| Cassette | Shimano HG300 | not listed |
| Chain | KMC Z8.3 | not listed |
| Crankset | Prowheel Alloy | not listed |
| Chainring | narrow-wide | not listed |
| Pedals | Nylon Platform | not listed |
| Wheelset | Bontrager Connection | not listed |
| Tire | Bontrager Montrose | not listed |
| Rim | Bontrager Connection | not listed |
| Brake | Tektro HD-M275 | not listed |
| Rotor | Tektro 6-bolt | not listed |
| Handlebar | Bontrager Alloy | not listed |
| Stem | Bontrager Comp | not listed |
| Grips | Trek Line Comp | not listed |
| Headset | Semi-integrated 1-1/8" | not listed |
| Seatpost | Bontrager Alloy | Roval Control SL |
| Saddle | Bontrager Verse Short | not listed |
| Rear shock | not listed | RockShox SIDLuxe WCID Ultimate |
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