Quiver

2027 Trek X-Caliber Frameset vs 2027 Specialized Epic Hardtail Comp SRAM 70, RockShox REBA

The M is the Specialized Epic Hardtail Comp SRAM 70, RockShox REBA size closest to your ML Trek X-Caliber Frameset. 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 Hardtail Comp SRAM 70, RockShox REBA

Compared with the Trek X-Caliber Frameset in ML, the Specialized Epic Hardtail Comp SRAM 70, RockShox REBA in M places the top of the head tube 10 mm higher and 4 mm further back, relative to the bottom bracket. Its wheelbase is 8 mm shorter, which can contribute to quicker direction changes.

Frame stack
+10 mm
Higher front end
Frame reach
−4 mm
Shorter frame reach
Wheelbase
−8 mm
Shorter: quicker to change direction
Head angle
−1.0°
Slacker: calmer steering
Chainstays
−8 mm
Shorter: livelier

The two frames

2027 Trek X-Caliber Frameset (ML) and 2027 Specialized Epic Hardtail Comp SRAM 70, RockShox REBA (M), lined up at the bottom bracketBoth frames drawn to scale. The Trek X-Caliber Frameset is drawn in full with its measurements, and the Specialized Epic Hardtail Comp SRAM 70, RockShox REBA is the colored outline on top.J 1125

Trek X-Caliber Frameset, MLSpecialized Epic Hardtail Comp SRAM 70, RockShox REBA, MDrawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementTrek X-Caliber Frameset MLSpecialized Epic Hardtail Comp SRAM 70, RockShox REBA MDifference
Reach434430mm−4 mm
Stack598608mm+10 mm
Head tube angle69.5°68.5°−1.0°
Seat tube angle73.0°74°+1.0°
Effective top tube617604mm−13 mm
Chainstay length438430mm−8 mm
Wheelbase11251117mm−8 mm
BB drop5863mm+5 mm
BB height310309mm−1 mm
Standover757792mm+35 mm
Seat tube length444430mm−14 mm
Head tube length9095mm+5 mm
Fork lengthnot listed506mm

Differences are the Specialized Epic Hardtail Comp SRAM 70, RockShox REBA minus the Trek X-Caliber Frameset. Full charts: 2027 Trek X-Caliber Frameset, 2027 Specialized Epic Hardtail Comp SRAM 70, RockShox REBA.

Where each sits in its class

Trek X-Caliber FramesetSpecialized Epic Hardtail Comp SRAM 70, RockShox REBA

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

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.

PartTrek X-Caliber FramesetSpecialized Epic Hardtail Comp SRAM 70, RockShox REBAHardtail Comp - SRAM Eagle 70, RockShox REBA
Forknot listedRockShox Reba
Derailleurnot listedSRAM Eagle 70 Transmission
Chainnot listedSRAM Transmission
Bottom bracketnot listedSRAM DUB
Tirenot listedSpecialized Fast Trak, Specialized Air Trak
Brakenot listedSRAM DB4
Handlebarnot listedSpecialized Mini Rise
Saddlenot listedSpecialized Power Comp

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