Quiver

2025 Specialized Rockhopper Expert vs 2024 Moots Mountaineer SL

The Moots Mountaineer SL size closest to your M - 27.5 is the S. Compare the S instead

What changes on the Moots Mountaineer SL

Compared with the Specialized Rockhopper Expert in M - 27.5, the Moots Mountaineer SL in XL places the top of the head tube 56 mm higher and 50 mm further forward, relative to the bottom bracket.

Frame stack
+56 mm
Higher front end
Frame reach
+50 mm
Longer frame reach
Wheelbase
n/a
One of the bikes has no number for this
Head angle
±0.0°
About the same head angle
Chainstays
+5 mm
Longer: more planted

The two frames

2025 Specialized Rockhopper Expert (M - 27.5)The Specialized Rockhopper Expert frame drawn to scale.J 1118

Only the Specialized Rockhopper Expert is drawn. The Moots Mountaineer SL numbers we have for size XL are missing the wheelbase.

Geometry side by side

MeasurementSpecialized Rockhopper Expert M - 27.5Moots Mountaineer SL XLDifference
Reach415mm465+50 mm
Stack589mm645+56 mm
Head tube angle68°68±0.0°
Seat tube angle73.5°73.5±0.0°
Effective top tube589not listed
Chainstay length440mm445+5 mm
Wheelbase1118mmnot listed
BB drop4360+17 mm
BB height310314+4 mm
Standover735mm856+121 mm
Seat tube length400mm533+133 mm
Fork length495mmnot listed
Head tube length105mm130+25 mm

Differences are the Moots Mountaineer SL minus the Specialized Rockhopper Expert. Full charts: 2025 Specialized Rockhopper Expert, 2024 Moots Mountaineer SL.

Where each sits in its class

Specialized Rockhopper ExpertMoots Mountaineer SL

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.

PartSpecialized Rockhopper ExpertExpertMoots Mountaineer SLXX SL
FrameSpecialized A1not listed
ForkRockShox JudyRockShox Pike Ultimate
ShifterSRAM SX Eaglenot listed
DerailleurSRAM NX Eaglenot listed
CassetteSRAM SX Eaglenot listed
ChainSRAM SX Eaglenot listed
CranksetSpecialized Stylonot listed
ChainringSRAM StyloMax Chain Ring
PedalsSpecialized Fitnessnot listed
WheelsetFormula StoutENVE M630
TireSpecialized Ground Control 2BRnot listed
HubFormula DC20, Formula DC22not listed
RimSpecialized hooklessnot listed
BrakeShimano MT200Disc
RotorShimano rearnot listed
HandlebarSpecialized alloyENVE M6
StemSpecialized StoutENVE M6
GripsSpecialized Trailnot listed
SeatpostSpecialized Alloynot listed
SaddleSpecialized Bridge Sportnot listed

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